Abstract
Example embodiments relate to luminaire head assemblies with brackets. One example luminaire head assembly includes a housing provided with a socket assembly. The luminaire head assembly also includes a light source arranged in the housing. Additionally, the luminaire head assembly includes a bracket releasably attached to the housing. The bracket is configured to fix the housing to a pole. The bracket has a first end for connection to a pole or pole connector and a second end attached to the housing. The bracket is provided with a through-hole at the second end. The socket assembly extends at least partially in the through-hole.
Claims
1. A luminaire head assembly comprising: a housing provided with a socket assembly; a light source arranged in said housing; and a bracket releasably attached to said housing, said bracket being configured to fix the housing to a pole, and said bracket having a first end for connection to a pole or pole connector and a second end attached to the housing, wherein the bracket is provided with a through-hole at said second end, and wherein the socket assembly extends at least partially in said through-hole.
2. The luminaire head assembly according to claim 1, wherein, seen in the mounted position of the luminaire head assembly, the housing has a top surface, and wherein the socket assembly is provided at said top surface.
3. The luminaire head assembly according to claim 2, wherein the socket assembly is arranged substantially at a center of the top surface.
4. The luminaire head assembly according to claim 2, wherein the second end of the bracket is releasably attached to a portion of the top surface, such that a lower surface of the bracket faces the top surface.
5. The luminaire head assembly according to claim 1, wherein the second end of the bracket is provided with channels configured to receive fastening means for fixing the bracket to the housing.
6. The luminaire head assembly according to claim 1, wherein the housing is provided with an outwardly protruding portion extending at least partially in the through-hole and configured to receive the socket assembly, wherein preferably a height of the outwardly protruding portion is substantially equal to a height of the bracket, and/or wherein preferably a shape of the outwardly protruding portion corresponds to a substantially cylindrical shape.
7. (canceled)
8. (canceled)
9. The luminaire head assembly according to claim 1, wherein a shape of the through-hole corresponds to a substantially cylindrical shape.
10. The luminaire bead assembly according to claim 6, wherein a shape of the through-hole corresponds to a substantially cylindrical shape, and wherein a diameter of the outwardly protruding portion is between 80% and 95% of a diameter of the through-hole, preferably between 90% and 95% of said diameter.
11. The luminaire head assembly according to claim 1, wherein the housing is provided with a hole, said hole being configured to pass a cable from the bracket to an inner space of the housing, and wherein preferably said cable is connected directly or indirectly to the socket assembly.
12. The luminaire head assembly according to claim 6, wherein the housing is provided with a hole said hole being configured to pass a cable from the bracket to an inner space of the housing, wherein the outwardly protruding portion is provided with said hole at a lateral surface thereof, and wherein preferably said cable is connected directly or indirectly to the socket assembly.
13. (canceled)
14. The luminaire head assembly according to claim 1, wherein the housing comprises an upper cover and a body which carries a photometric unit, said photometric unit comprising said light source at a lower portion thereof and an electronic assembly at an upper portion thereof, and wherein the second end of the bracket is attached to the upper cover.
15. The luminaire head assembly according to claim 14, wherein the body is provided with a through-hole between an upper side and a lower side; and wherein the photometric unit is releasably attached to said body, preferably in a tool-less manner and at least partially extending in said through-hole.
16. The luminaire head assembly according to claim 14, further comprising a hinge between said upper cover and said body, and an attachment means configured for releasably attaching said body to said upper cover.
17. The luminaire head assembly according to claim 14, wherein the electronic assembly comprises any one or more of the following: a light source driving means, a light source dimming means, surge protection circuitry, electrostatic discharge protection circuitry, connecting means, a fuse, and control and/or driving circuitry for controlling and/or driving a component of the luminaire head assembly.
18. The luminaire head assembly according to claim 14, wherein the socket assembly is connected directly or indirectly to the electronic assembly, and/or wherein the body is configured to receive at least one of: a socket, an antenna, or a sensor.
19. (canceled)
20. The luminaire head assembly according to claim 14, further comprising a skirt releasably attached to said body and at least partially surrounding said body, wherein preferably a shape of the skirt corresponds to any one of a substantially conical shape, a substantially cylindrical shape, a stepped shape, or a combination thereof, and/or wherein preferably the skirt is provided with a textured surface or a relief structure, and/or wherein preferably the skin is provided with a color pattern, and/or wherein preferably the skirt is releasably attached to the body by means of any one or more of the following elements: screws, locks, clamps, clips, pins, studs, and bolts.
21. (canceled)
22. (canceled)
23. The luminaire head assembly according to claim 14, further comprising a diffusor casing releasably attached to the body, said diffusor casing comprising a transparent or translucent portion, wherein preferably a shape of the diffusor casing corresponds to any one of a substantially conical shape, a substantially cylindrical shape, or a combination thereof, and/or wherein preferably the diffusor casing is releasably attached to the body by means of any one or more of the following elements: screws, locks, clamps, clips, pins, studs, and bolts.
24. (canceled)
25. (canceled)
26. The luminaire head assembly according to claim 1, wherein the socket assembly is configured to receive an external module.
27. The luminaire head assembly according to claim 1, wherein the bracket extends in a longitudinal direction between the first and the second end, and wherein the through-hole has an axis which is at an angle with respect to the longitudinal direction of the bracket, preferably substantially perpendicular on the longitudinal direction of the bracket.
28. The luminaire bead assembly according to claim 1, wherein, seen in the mounted position, the bracket has a lower side and an upper side, wherein the through-hole extends between the lower side and the upper side, and wherein preferably a portion of the lower side of the bracket faces the housing.
29. (canceled)
Description
BRIEF DESCRIPTION OF THE FIGURES
[0212] This and other aspects of the present invention will now be described in more detail, with reference to the appended drawings showing a currently preferred embodiment of the invention. Like numbers refer to like features throughout the drawings.
[0213] FIGS. 1A-1F respectively illustrate a perspective top view, a perspective bottom view in the open state, a perspective top view in the open state, a perspective top view in the open state, an exploded view, and a partial cross section of an exemplary embodiment of a luminaire head assembly;
[0214] FIGS. 2A-2D respectively illustrate two perspective top views, an exploded view, and a partial cross section of another exemplary embodiment of a luminaire head assembly;
[0215] FIGS. 3A-3D respectively illustrate three perspective views and a bottom view of an exemplary embodiment of a luminaire head assembly;
[0216] FIGS. 4A and 4B respectively illustrate a perspective view and a bottom view of another exemplary embodiment of a luminaire head assembly;
[0217] FIG. 5A-5D respectively illustrate a sectional view, an enlarged sectional view, another sectional view, and another enlarged sectional view of an exemplary embodiment of a luminaire head assembly;
[0218] FIGS. 6A-6D respectively illustrate a perspective top view of a bracket, a perspective top view of an exemplary embodiment of a luminaire head assembly provided with a socket assembly, a perspective top view of a socket assembly, and schematic view of an external module connected to an exemplary embodiment of a luminaire head assembly provided with a socket assembly;
[0219] FIGS. 7A and 7B respectively illustrate two front views of another exemplary embodiment of a luminaire head assembly;
[0220] FIGS. 8A-8I respectively illustrate several front views, an enlarged front view, and five detailed front views of yet another exemplary embodiment of a luminaire head assembly;
[0221] FIGS. 9A-9F respectively illustrate three exemplary embodiments of a luminaire head assembly and several exemplary embodiments of a luminaire comprising a luminaire head assembly;
[0222] FIGS. 10A-10C respectively illustrate three exemplary embodiments of a bracket of a luminaire head assembly, two exemplary embodiments of a luminaire head assembly, and several exemplary embodiments of a luminaire comprising a luminaire head assembly;
[0223] FIGS. 11A, 11B, 11C and 11D show a perspective view, a sectional view, a detailed sectional view of the connection between body and skirt, and a detailed sectional view of the mounting of the inner casing for another exemplary embodiment;
[0224] FIG. 12 is a partial sectional view of a further embodiment with a wire frame; and
[0225] FIG. 13 is a sectional view of a further embodiment with a ribbed frame.
DESCRIPTION OF EMBODIMENTS
[0226] The luminaire head assembly 1 of FIGS. 1A-8B may be included in a luminaire comprising said luminaire head assembly 1 and a luminaire pole P. P′. The luminaire head assembly 1 may be connected to the luminaire pole P. P′ in any manner known to the skilled person. Typical examples of such systems are street lights. In other embodiments, the luminaire head assembly 1 may be connected to a wall or a surface, e.g. for illuminating buildings or tunnels.
[0227] FIGS. 1A-1E illustrate various perspective views of an exemplary embodiment of a luminaire head assembly in the closed state (FIG. 1A) and open state (FIGS. 1B-1D), as well as an exploded view (FIG. 1E) and a cross sectional view (FIG. 1F). FIGS. 2A-2D respectively illustrate two perspective top views (with and without upper cover), an exploded view, and a cross sectional view of another exemplary embodiment of a luminaire head assembly.
[0228] As illustrated in FIGS. 1A-2C, the luminaire head assembly 1 comprises a ring-shaped body 200 provided with a through-hole H1 (best visible in FIGS. 1B, 1D, 1E and 2B) between an upper side 220 and a lower side 210, and a photometric unit 300 releasably attached to the body 200 in a tool-less manner and at least partially extending in the through-hole H1. The luminaire head assembly 1 further comprises an upper cover 100 to cover the upper side 220 of the body 200, a hinge Hi between the upper cover 100 and the body 200, and an attachment means L1, L2 configured for releasably attaching the body 200 to the upper cover 100. The body 200 may be releasably attached to the upper cover 100 by means of any one or more of the following elements: screws SC1, SC2, locks, clamps, clips, latches L1, L2 as illustrated in FIGS. 1A-2C. The upper cover has an upper side 110 and a lower side 115, wherein the lower side 115 faces the upper side 220 of the body 200.
[0229] The photometric unit 300 comprises a light source 310 at a lower portion thereof and an electronic assembly 320 at an upper portion thereof. The light source 310 comprises a plurality of LEDs 311 arranged on a PCB 312. Optionally, one or more optical elements, such as a lenses or reflectors, may be arranged over the plurality of LEDs 311. The optical elements may be integrated in a plate comprising a plurality of optical elements, e.g. a lens plate. A light flux exhauster 360 provided with a through-hole H2 and surrounding the light source 310 may be releasably attached to the support 330, preferably in a tool-less manner by means of clamps, or clips C11-C14 as illustrated in FIGS. 1D and 1E.
[0230] The body 200 may be a ring-shaped body 200 as in the embodiments illustrated in FIGS. 1A-2C, or may be a square or rectangular body in other non-illustrated embodiments, or in general may have any polygonal or curved shape.
[0231] As illustrated in FIGS. 1A-2C, the luminaire head assembly 1 comprises a skirt 410 releasably attached to the body 200, preferably to the lower side 210 of the body 200, and preferably surrounding a peripheral side 215 of the body 200. The skirt 410 at least partially surrounds the through-hole H1 in the body 200. A shape of the skirt 410 may correspond to any one of a substantially conical shape, a substantially cylindrical shape, a stepped shape as illustrated in FIGS. 1A-2C, or a combination thereof. The skirt 410 may be releasably attached to the body 200 by means of any one or more of the following elements: screws SC3 as illustrated in FIG. 1D, locks, clamps, clips. In the embodiment of FIGS. 1A-1F, the skirt 410 is fixed with screws SC3, the skirt 410 is provided with through-holes 411 for the screws SC3, and the body may be provided with corresponding holes 211 for receiving the screws SC3. In the embodiment of FIGS. 2A-2D, a circumferential flange 412 of the skirt 410 may be fixed between the protector and connection assembly 410′ (see further) and the body 200 without the need for screws.
[0232] In the embodiment of FIGS. 1A-1E, the luminaire head assembly 1 comprises a lower cover 500 supported on the lower side 210 of the body 200, within the first peripheral area, and surrounding the through-hole H1 at the lower side 210 of the body 200. The lower cover 500 may comprise a transparent or translucent portion 510 and optionally a ring or annular portion 520 as illustrated in FIGS. 1B. 1D and 1E. Optionally a color filter 515 (see FIG. 1E) may be arranged between the light source 310 and the lower cover 500. For example the color filter 515 may be a sheet or coating arranged above the transparent or translucent portion 510 of the lower cover 500. The color filter 515 is configured to absorb a portion of the light emitted by the light source 310 in specific wavelength ranges so as to change the color of the light emitted by the luminaire head assembly. In the illustrated embodiment, the transparent or translucent portion 510 is a flat portion, but the skilled person understands that this may also be a curved portion, e.g. a dome or flute shaped portion. By arranging the color filter 515 in this manner, the color filter can be easily removed or replaced, e.g. with a different color filter for another occasion, by opening the upper compartment (see also FIG. 4A) and removing the photometric unit 300.
[0233] The luminaire head assembly 1 of FIGS. 1A-1E may further comprise a bracket (not shown; see element 600 of FIG. 4A) configured to fix the upper cover 100 to a pole (not shown; see element P of FIGS. 9B-9F), wherein an end (not shown; see element E of FIGS. 9B-9F) of said bracket is connected to the upper cover 100. In this manner, the embodiment of FIGS. 1A-1E corresponds to the above-mentioned side-entry configuration of the luminaire head assembly 1.
[0234] In the embodiment of FIG. 2A-2C, the luminaire head assembly 1 comprises a protection and connection assembly 410′ (see FIG. 2C) comprising a light-transmitting protective casing 420 and a connection part 422 configured for connecting a lower end 421 of the protective casing 420 to a pole P′. An upper edge 423 of the protective casing 420 is supported on the lower side 210 of the body 200, within the first peripheral area, and surrounding the through-hole H1 at the lower side 210 of the body 200. The protective casing 420 may comprise a transparent or translucent portion as illustrated in FIGS. 2A-2C, and may be configured to diffuse light emitted by the light source. In this manner, the embodiment of FIGS. 2A-2C corresponds to the above-mentioned post-top configuration of the luminaire head assembly 1.
[0235] While in the side-entry configuration the upper cover 100 may be provided with an outwardly protruding portion 120, as illustrated in FIGS. 1A-1E, in the post-top configuration the latter may be replaced with a simple cap 130, as illustrated in FIG. 2C, configured to cover the hole left by the removal of the outwardly protruding portion 120. Also, the upper cover 100 may be closed as illustrated in FIG. 2A. In addition, while in the side-entry configuration the lower cover 500 comprising a transparent or translucent portion 510 and optionally an annular portion 520 is present, as illustrated in FIGS. 1D and 1E, in the post-top configuration the lower cover 500 may be replaced with the protection and connection assembly 410′, as illustrated in FIGS. 2A-2C.
[0236] Although not illustrated, it should be noted that in other embodiments a protective casing may also be used in the side-entry configuration. In this case, the lower cover 500 may be removed and replaced with a protective casing, as in the post-top configuration, wherein the bottom end of the protective casing may then be closed or provided with a lower cover. In other embodiments, the lower cover and protective casing can be combined, notably in case a color filter is desired and/or if the lower cover is configured as a diffusing or translucent element.
[0237] As illustrated in FIGS. 1C and 2C, the photometric unit 300 comprises a support 330 releasably attached to the lower side 210 of the body 200 in a tool-less manner and typically at least partially extending in the through-hole H1 such that the light source 310 can emit light through the through-hole H1 or such that the light source 310 extends partially in the through-hole H1. The support 330 has an upper portion 331 facing the upper cover 100 and a lower portion 332 opposite the upper portion 331. The electronic assembly 320 is arranged at the upper portion 331 and the light source 310 is arranged at the lower portion 332. The support 330 may be releasably attached to the lower side 210 of the body 200 in a tool-less manner, for example by means of clamps, or clips C1, C2 as illustrated in FIGS. 3A, 3B, and 4A, or quarter-turn screws Q1, Q2 as illustrated in FIGS. 1B-1E. In the embodiment of FIGS. 1A-1F and 2A-2D, the support may function at the same time as a heat sink, a gear plate for supporting the electronic assembly 320 and a support for the light source 310. To improve the heat removal, the support 330 may be provided with ribs 337 or other surface increasing elements.
[0238] As illustrated in FIG. 1B, the luminaire head assembly 1 may comprise a seal S1 arranged between the upper cover 100 and the upper side 220 of the body 200. The same seal S1 may be provided in the embodiment of FIGS. 2A-2D between the upper cover 100 and the body 200, see FIG. 2D. In the embodiment of FIGS. 1A-1F, the luminaire head assembly 1 may further comprise a seal S2 arranged around the through-hole H1 of the body 200 between the lower cover 500 and the body 200, see FIG. 1F. As illustrated in FIGS. 1B and 1E, the lower cover 500 may comprise an annular portion 520 releasably attached to the lower side 210 of the body 200. The annular portion 520 may be releasably attached to the lower side 210 of the body 200 by means of any one or more of the following elements: screws, locks, clamps, clips. The transparent or translucent portion 510 may be arranged between the light source 310 and the annular portion 520. The annular portion 520 may be configured to exert a vertical pressure on the transparent or translucent portion 510 when attached to the lower side 210 of the body 200, such that the transparent or translucent portion 510 is sandwiched between the light source 310 and the annular portion 520 in a sealed manner thanks to the presence of the seal S2, see FIG. 1F, between the body 200 and the transparent or translucent portion 510.
[0239] Also in the embodiment of FIGS. 2A-2D, optionally a color filter 515 (see FIG. 2C) may be arranged between the light source 310 and the protective casing 420, and in particular between the light source 310 and a lower cover 500 which may be similar to the lower cover 500 of FIG. 1D and which is attached to the body 200. By arranging the color filter 515 in this manner, the color filter can be easily removed or replaced, e.g. with a different color filter for another occasion, by opening the upper compartment (see also FIG. 3A) and removing the photometric unit 300.
[0240] In the embodiment of FIGS. 2A-2D, the protective casing 420 may be releasably attached to the body 200 by means of any one or more of the following elements: screws SC3′ as illustrated in FIGS. 2B and 2D, locks, clamps, clips. In this case, an upper end 423 of the protective casing 420 may be provided with threaded holes (see elements VC1, VC2, VC3, VC4 of FIGS. 2A-2C and FIGS. 8A, 8C) extending at the upper edge 423 of the protective casing 420 and configured to receive the screws SC3. Alternatively, the protective casing could be provided with simple holes for screws extending into threaded holes in the body, or bolts extending through holes in the protective casing and through the body and fixed with nuts. If a skirt 410 is present, the skirt 410 may have circumferential flange 412 configured to be fixed between and upper edge of the protective casing 420 and the body 200 without the need for additional screws. Alternatively the skirt 410 may be fixed independently of the protective casing with separate screws.
[0241] The screws SC1, SC2, SC3, SC3′ may also be replaced with pins, bolts or studs.
[0242] A shape of the protective casing 420 may correspond to any one of a substantially conical shape as illustrated in FIGS. 2A-2C, a substantially cylindrical shape, or a combination thereof. The luminaire head assembly 1 may further comprise a seal S3 arranged between the protective casing 420 and the body 200, see FIG. 2D.
[0243] In the illustrated embodiment the skirt 410 comprises a peripheral portion 415 extending around a peripheral side 215 of the body 200, but the skirt 410 may also comprise a peripheral portion (not illustrated) extending around an upper portion of the protective casing 410. More generally, the skirt 410 may be adapted to give the luminaire an attractive look without hindering the good operation of the luminaire, in the sense that the skirt 410 may be arranged outside of the sealed compartment containing the light source 310 and may hide standard design components and/or interfaces between different components.
[0244] It should be noted that the body 200 and the support 330 of the embodiment of FIGS. 1A-1F may be the same as the body 200 and the support 330 of the embodiment of FIGS. 2A-2D. In other words, the body 200 and support 330 may be the same in a first luminaire head assembly 1 with a skirt 410, and in a second luminaire head assembly 1 with a protection and connection assembly 410′, and/or may be the same in a first luminaire head assembly 1 with a bracket 600, and in a second luminaire head assembly 1 with a protection and connection assembly 410′, and/or may be the same in a first luminaire head assembly 1 with a first skirt 410, and in a second luminaire head assembly 1 with a second skirt 410 different from the first skirt 410, and/or may be the same in a first luminaire head assembly 1 with a first protection and connection assembly 410′, and in a second luminaire head assembly 1 with a second protection and connection assembly 410′ different from the first protection and connection assembly 410′. It is further noted that the skirt 410 is optional, and may be omitted both in the embodiment of FIGS. 1A-1F and in the embodiment of FIGS. 2A-2D.
[0245] Hence, the body 200 and the support 330 may be the same for a large range of different products. The products can be readily adjusted according to the desire of the customer by selecting a skirt 410 and/or a protection and connection assembly 410′ and by selecting the components (light source 310, electronic assembly 320) on the support 330. Further, the products can be readily adjusted for a side-entry configuration or for a post-top configuration of the luminaire head assembly 1 according to the desire of the customer by respectively selecting a lower cover 500 and a bracket 600, or a protection and connection assembly 410′. It is further noted that the body 200 and/or the support 330 may be molded parts, and that since these parts are the same, the manufacturing costs can be significantly reduced.
[0246] FIGS. 3A-3B respectively illustrate a perspective view and a bottom view of another exemplary embodiment of a luminaire head assembly. FIGS. 4A and 4B respectively illustrate a perspective view and a bottom view of another exemplary embodiment of a luminaire head assembly. The same or similar components of the luminaire head assembly of FIGS. 3A-3B and 4A-4B are indicated with the same reference numeral and will not be described again.
[0247] As illustrated in FIGS. 3A, 3B, and 4A, the support 330 may be releasably attached to the lower side 210 of the body 200 in a tool-less manner, for example by means of clamps, or clips C1, C2. As illustrated in FIGS. 3A and 4A, the electronic assembly 320 may comprise a light source driving means 321, surge protection circuitry 322, electrostatic discharge protection circuitry 323, connecting means 324, and a fuse 325. The electronic assembly 320 may comprise further electronic and/or electrical components, such as a light source dimming means (not shown). As illustrated in FIG. 4B, the light source 310 may comprise a plurality of light-emitting diodes (LEDs). In the embodiment of FIG. 4B, the light source 310 comprises 40 LEDs arranged in a two-dimensional array of 8 rows and 5 columns, but other arrangements may be considered, as well as other amounts of LEDs. The light source 310 may be releasably attached to the support 330.
[0248] In the embodiments of FIGS. 3A-3B, the support 330 comprises a heat sink 330′. The support 330 comprises a heat sink 330′ made of a heat conductive material. The heat sink 330′ may be partially in contact with the body 200. The light source 310 may be releasably attached to the support 330 by means of screws, as illustrated in FIG. 3B. A light flux exhauster (not visible, but similar to the flux exhauster of FIGS. 1B-1E) may be releasably attached to the support 330, preferably in a tool-less manner, for example by means of clamps, or clips C5-C10 as illustrated in FIG. 3B, in a similar way as described above for the embodiment of FIGS. 1B-1E. The photometric unit 300 may comprise a gear plate 350 mounted on the heat sink 330′, and the electronic assembly 320 may be mounted on said gear plate 350. In other embodiments, the heat sink 330′ may be painted in white or in any bright color in order to play the role of the light flux exhauster 360. In this case, the light flux exhauster 360 may be optional, or even removed from the luminaire head assembly 1.
[0249] In the embodiment of FIGS. 4A and 4B, the support 330 comprises a heat sink 340. The support 330 comprises a carrier 370 provided with a through-hole H2 (see FIG. 4B). The carrier 370 is releasably attached to the body 200. The heat sink 340 may be releasably attached to the carrier 370, preferably in a tool-less manner, and arranged at the through-hole H2. The carrier 370 of the embodiments of FIGS. 4A and 4B may play the role of the light flux exhauster 360 of the embodiments of FIG. 3A-3B. The heat sink 340 may be releasably attached to the carrier 370 in a tool-less manner by means of clamps, or clips (not shown; see elements C3, C4 in FIG. 5A). The electronic assembly 320 is arranged at an upper portion of the heat sink 340 and the light source 310 is arranged at a lower portion of the heat sink 340 opposite the upper portion. Since the heat sink 340 may be releasably attached to the carrier 370 in a tool-less manner and the light source 310 is arranged at the lower portion of the heat sink 340, the light source 310 may be releasably attached to the support 330 in a tool-less manner. The heat sink 340 may be partially in contact with the body 200. The photometric unit 300 may comprise a gear plate 350 mounted on the heat sink 340, and the electronic assembly 320 may be mounted on said gear plate 350.
[0250] It should be clear for the skilled person that the embodiments illustrated in FIGS. 3A-3B, 4A-4B are compatible with both side-entry (FIGS. 1A-1F) and post-top configurations (FIGS. 2A-2D), although the bracket 600 and the outwardly protruding portion 120 are represented in FIG. 4A. As illustrated in FIG. 4B, the luminaire head assembly 1 may further comprise a seal S3 arranged between the protective casing 420 of FIGS. 2A-2D and the body 200.
[0251] FIG. 5A-5D respectively illustrate a sectional view, an enlarged sectional view, another sectional view, and another enlarged sectional view of another exemplary embodiment of a luminaire head assembly.
[0252] FIGS. 5A and 5B illustrate the luminaire head assembly 1 in a closed position, i.e. in a position where the body 200 and the upper cover 100 are attached at one side by means of a hinge Hi between the upper cover 100 and the body 200 and screws SC1, SC2, and at another side by means of an attachment means, e.g. the latches L1, L2, and define part of a housing 10 enclosing the photometric unit 300. A transparent or translucent lower cover 500 covering the lower side 210 of the body 200, such as the lower cover 500 illustrated in FIGS. 1E-1F, may form the housing 10 together with the body 200 and the upper cover 100, in which the photometric unit 300 comprising the electronic assembly 320 and the light source 310 are arranged.
[0253] By contrast, FIGS. 5C and 5D illustrate the luminaire head assembly 1 in an open position, i.e. in a position where the body 200 and the upper cover 100 are attached only at one side by means of the hinge H1 between the upper cover 100 and the body 200 and the screws SC1, SC2.
[0254] The embodiment illustrated in FIGS. 5A-5D corresponds to the embodiment of FIGS. 4A and 4B. Hence, the configuration and arrangement of the luminaire head assembly 1 discussed above with respect to FIGS. 4A and 4B apply to the luminaire head assembly 1 of FIGS. 5A-5D and will not be repeated here.
[0255] The lower side 210 of the body 200 may be configured to receive at least one of a socket 230 as illustrated in FIGS. 5A-5D, an antenna, a sensor. The sensor may be a light sensor configured for sensing a signal relating to ambient light levels. The antenna may then be configured for treating signals received from the light sensor and for communicating those treated signals. Apart from a light sensor, various other sensors may be present, such as an image sensor (e.g. a camera), an audio sensor, an air quality sensor, a motion sensor, an environmental sensor sensing e.g. temperature, visibility, vibration, humidity, etc. The antenna may then be further configured to use and/or transmit the data sensed by one or more of those additional sensors. The antenna may or may not be highly directional. Also omnidirectional antennas may be used. The antenna may be any type of antenna, such as an RF antenna, a Bluetooth antenna, a near field communication antenna, etc. Also, there may be provided a plurality of antennas. The socket 230 may establish a connection with the electronic assembly 320 using one or more wired communication protocols such as Communication Area Network (CAN), Digital Addressable Lighting Interface (DALI), Universal Asynchronous Receiver-Transmitter (UART), 1-10V, I2C, RS485, USB, Ethernet, Local Interconnect Network (LIN), an analogue communication protocol such as an analog 4-20 mA current loop protocol used for electronic signaling. The socket 320 may then be used to receive and/or send at least one input and/or output signal using said one or more wired communication protocols. In other embodiments, it may also be possible to use wireless communication protocols, such as EnOcean, Bluetooth Low Energy (BLE), ZigBee control, NFC (Near Field Communication), Sigfox, Narrow-Band Internet of Things (NB-IoT), LoRaWAN, Li-Fi control, Low-Power Wide-Area Network (LPWAN), but this is generally not preferred.
[0256] FIGS. 6A and 6B respectively illustrate a perspective top view of a bracket, a perspective top view of an exemplary embodiment of a luminaire head assembly provided with a socket assembly. FIGS. 6C and 6D respectively illustrate a perspective top view of a socket assembly, and schematic view of an external module connected to an exemplary embodiment of a luminaire head assembly provided with a socket assembly.
[0257] As illustrated in FIGS. 6B and 6D, the luminaire head assembly 1 comprises a housing 10 provided with a socket assembly 700 (see also FIG. 6C), a light source 310 (see FIG. 6D) arranged in the housing 10, and a bracket 600 (see FIG. 6B) releasably attached to the housing 10, the bracket 600 being configured to fix the housing 10 to a pole (not shown; see element P of FIGS. 9B-9F). As illustrated in FIG. 6A, the bracket 600 is provided with a through-hole H at an end E thereof. As illustrated in FIG. 6B, the socket assembly 700 extends at least partially in said through-hole H. The housing 10 may be defined by the body 200, the upper cover 100, and the lower cover 500 of the embodiments of FIGS. 1A-1F, as illustrated in FIG. 6B, or by the body 200, the upper cover 100, and the protective casing 420 of the embodiments of FIGS. 2A-2D. However, it should be clear for the skilled person that the housing 10 is not limited thereto, as schematically illustrated in FIG. 6D. The housing 10 encloses the light source 310. The housing 10 may also enclose other components, such as electronic assembly 320 for driving the light source and/or performing controlling tasks. The light source 310 may correspond to the light source 310 of any one of the previous embodiments.
[0258] As illustrated in FIG. 6B, the housing 10 has a top surface 110, and the socket assembly 700 is provided at the top surface 110. The end E of the bracket 600 is releasably attached to a portion of the top surface 110. In this manner, the embodiment of FIG. 6B corresponds to the side-entry configuration of the luminaire head assembly 1. The end E of the bracket 600 is provided with four channels 610 configured to receive fastening means for fixing the bracket 600 to the housing 10. It should be clear for the skilled person that the number and/or shape of channels 610 may vary in other embodiments, and that the bracket 600 may also be fixed in a different manner.
[0259] As illustrated in FIG. 6B, the housing 10 is provided with an outwardly protruding portion 120 extending at least partially in the through-hole H and configured to receive the socket assembly 700. The outwardly protruding portion 120 may correspond to the outwardly protruding portion 120 illustrated in FIGS. 1A-F, 5A, and 5C. A height h (see FIG. 1A) of the outwardly protruding portion 120 may be substantially equal to a height h′ (see FIG. 6A) of the bracket 600. A shape of the outwardly protruding portion 120 may correspond to a substantially cylindrical shape as illustrated in FIG. 1A, but is not limited thereto. Although a cylindrical shape is preferred, in other embodiments said shape may be substantially conical, rectangular, or square. Similarly, a shape of the through-hole H may correspond to a substantially cylindrical shape as illustrated in FIG. 6A, but is not limited thereto. Although a cylindrical shape is preferred, in other embodiments said shape may be substantially conical, rectangular, or square. A diameter d of the outwardly protruding portion 120 may be e.g. larger than 80% of a diameter D of the through-hole H, preferably larger than 90% of said diameter D, as illustrated in FIGS. 6A and 6B. Preferably, the diameter d of the outwardly protruding portion 120 is smaller than 99% of a diameter D of the through-hole H. Further, as shown in FIG. 6B, channels or passage 605 may be provided through the end of the bracket in order to evacuate water from the through-hole H. Such drainage channels or passages 605 are preferably provided at a lower side of the bracket, and extend from the through-hole H to an outer periphery of the bracket.
[0260] The housing 10 may be provided with a hole H′, said hole H′ being configured to pass a cable from the bracket 600 to an inner space of the housing 10. As in the embodiment of FIGS. 1A-1F, the outwardly protruding portion 120 may be provided with the hole H′ at a lateral surface thereof. In a preferred embodiment illustrated in FIG. 1A, the outwardly protruding portion 120 comprises a cylindrical portion 121 and an adjoining cable guidance portion 122 provided with the hole H′. The cable guidance portion 122 may comprise an cable entrance surface 123 which is inclined with respect to the upper surface 110 of the upper cover 100. The cable may be connected directly or indirectly to the socket assembly 700.
[0261] As mentioned before, the housing 10 may comprise an upper cover 100 and a body 200 which carries a photometric unit 300 comprising the light source 310 and an electronic assembly 320. The body 200 may be provided with a through-hole, and may be releasably attached to the upper cover 100. The photometric unit 300 may be releasably attached to the body 200 in a tool-less manner. The electronic assembly 320 may comprise any one or more of the following: a light source driving means, a light source dimming means, surge protection circuitry, electrostatic discharge protection circuitry, connecting means, a fuse. The socket assembly 700 may be connected directly, as illustrated in FIG. 6D, or indirectly to the electronic assembly 320. As in the embodiment of FIGS. 5A-5D, the body 200, in particular the lower side 210 of the body 200, may be configured to receive at least one of a socket 230, an antenna, a sensor. The types of socket 230, antenna, and sensor discussed in connection with FIGS. 5A-5D apply to the embodiment of FIGS. 6A-6D.
[0262] Although not illustrated in FIGS. 6A-6D, the luminaire head assembly 1 may further comprise a protective casing 420 releasably attached to the body 200, as in the embodiment of FIGS. 2A-2D. The protective casing 420 may comprise a transparent or translucent portion. A shape of the protective casing 420 may correspond to any one of a substantially conical shape, a substantially cylindrical shape, or a combination thereof. The protective casing 420 may be releasably attached to the body 200 by means of any one or more of the following elements: screws, locks, clamps, clips.
[0263] As illustrated in FIGS. 6C and 6D, the socket assembly 700 has a front side 701 and a rear side 702. Although FIG. 6C shows schematically a socket assembly more or less according to the Zhaga standard, it is noted that the socket assembly 700 may be in accordance with the NEMA standard (the ANSI C136.10-2017 standard or of the ANSI C136.41-2013 standard), or with the Zhaga standard (see LEX-R in book 18, Edition 1.0, July 2018). The front side 701 may be configured for receiving electrical contacts of an external module 800 (see FIG. 6D). The external module 800 may be configured to cooperate with such socket assemblies. The rear side 702 is intended for being electrically connected to the electronic assembly 320. The socket assembly 700 may house a plurality of contacts 710a-d in apertures 720a-d arranged in the front side 701. Each contact 710a-d may be provided, at a front end, with a front contact portion configured for being electrically connected with a contact of the external module 800, e.g. a prong 810 (see FIG. 6D), and, at a rear end, with at least one wire W (see FIG. 6D) is fixed. The front contact portions of the plurality of contacts 710a-d extend near the front side 701.
[0264] The plurality of contacts 710a-d may extend substantially along a first cylindrical surface around a central axis of the socket assembly 700. The front side 701 may be provided with a central recess 730 configured for receiving a central pin of the external module 800, preferably in accordance with the above-mentioned Zhaga standard. Optionally, the socket assembly 700 comprises an RFID tag (not shown), preferably at the front side 701. Other components may be included in the socket assembly 700, such as wireless communication means, sensor means, an antenna, protection circuitry, etc. The rear side 702 may be provided with a screw-thread 740. The housing 10, in particular the outwardly protruding portion 120, may further comprise a nut (not shown) configured to be screwed on the screw-thread 740.
[0265] Preferably, the plurality of contacts 710a-d comprises: at least one receptacle contact for carrying power signals, and/or at least one receptacle contact for carrying data or control signals, and/or at least one receptacle contacts for carrying a power signal and a data or control signal. For example, contact 710b may be a DC power supply (e.g. 24 V), contact 710c may be a positive pole for a dimming protocol (e.g. DALI), contact 710a may be a general digital I/O (e.g. greater than 7 V), and contact 710d may be at the same time a negative pole for the dimming protocol, a ground for the power supply, a ground for the general digital I/O.
[0266] More generally, the plurality of receptacle contacts may comprise at least one receptacle contact for carrying a power signal and/or at least one receptacle contact for carrying a data or control signal and/or at least one receptacle contact for carrying both a power signal and a data or control signal. In an exemplary embodiment, the plurality of receptacle contacts comprises at least three receptacle contacts for carrying power signals and/or at least two receptacle contacts for carrying data or control signals. In another exemplary embodiment, the plurality of receptacle contacts comprises one receptacle contact for carrying a power signal, one receptacle contact for carrying a power signal as well as a data/control signal, and/or at least two receptacle contacts for carrying data or control signals. It is noted that the at least two power signals may comprise DC and/or AC signals. For example, a DC power supply signal may be transferred through the receptacle, wherein there is provided a first DC terminal contact for a positive DC voltage (e.g. a 24V DC signal) and a second DC terminal contact for a ground connection (wherein optionally the ground connection may also be used as a ground terminal for a data or control signal). Such an embodiment may be conforming the Zhaga standard mentioned above. Alternatively or in addition, an AC power supply signal (e.g. a 230V AC signal to feed a driver of a luminaire) may be transferred through the receptacle, wherein there is provided a first, second and third AC terminal contact for a three-phase AC signal. Such an embodiment may be conforming the NEMA standards mentioned above.
[0267] FIGS. 7A and 7B respectively illustrate two front views of another exemplary embodiment of a luminaire head assembly.
[0268] FIG. 7A illustrates the luminaire head assembly 1 in a closed position, i.e. in a position where the body 200 and the upper cover 100 are attached at one side by means of a hinge Hi between the upper cover 100 and the body 200 and e.g. screws, and at another side by means of an attachment means, e.g. the latches L1, L2, and define part of a housing 10 enclosing the photometric unit 300. The lower cover 500 as illustrated in FIGS. 1E and 1F may form the housing 10 together with the body 200 and the upper cover 100, in which the electronic assembly 320 and the light source 310 are arranged.
[0269] By contrast, FIG. 7B illustrates the luminaire head assembly 1 in an open position, i.e. in a position where the body 200 and the upper cover 100 are attached only at one side by means of the hinge Hi between the upper cover 100 and the body 200 and e.g. the screws.
[0270] The embodiment illustrated in FIGS. 7A and 7B corresponds to the embodiment of FIGS. 1A-1F. Hence, the configuration and arrangement of the luminaire head assembly 1 discussed above with respect to FIGS. 1A-1D apply to the luminaire head assembly 1 of FIGS. 7A and 7B and will not be repeated here. Moreover, the bracket 600 illustrated in FIGS. 7A and 7B corresponds to the bracket illustrated in FIGS. 6A and 6B. Hence, the configuration and arrangement of the bracket 600 discussed above with respect to FIGS. 6A and 6B apply to the bracket 600 of FIGS. 7A and 7B and will not be repeated here.
[0271] The luminaire head assembly 1 of FIGS. 7A and 7B may be included in a luminaire comprising said luminaire head assembly 1 and a pole P′. As illustrated in FIGS. 7A and 7B, the bracket 600 is releasably attached to the housing 10, and is configured to fix the housing 10 to the pole P′. The bracket 600 is provided with a through-hole (not shown; see FIG. 6A) at an end E thereof, and the housing 10 is provided with an outwardly protruding portion 120 extending at least partially in the through-hole. At an end opposite said end E, the bracket 600 is fixed to a pole connector C. The pole connector has a first end E1 where the bracket 600 is fixed to the pole connector C, and a second end E2 opposite said first end E1. The pole connector C is fixed to a top end E′ of the pole P′ at said second end E2. Hence, the pole connector C is configured to use the luminaire head assembly 1 in the side-entry configuration together with a vertical pole P′, i.e. with a pole P′ suitable for the post-top configuration. In other words, the pole connector C enables a “hybrid” configuration made from a combination of features of the side-entry configuration and of the post-top configuration of a luminaire. A shape of the pole connector C may enable an opening of the housing 10 that is convenient for a user or an operator, as illustrated in FIG. 7B. For example, a length of the pole connector C may be substantially the same as a diameter of the body 200.
[0272] Although not illustrated in FIGS. 7A and 7B, the luminaire head assembly 1 may further comprise a protective casing 420 releasably attached to the body 200, as in the embodiment of FIGS. 2A-2C. The protective casing 420 may comprise a transparent or translucent portion. A shape of the protective casing 420 may correspond to any one of a substantially conical shape, a substantially cylindrical shape, or a combination thereof. The protective casing 420 may be releasably attached to the body 200 by means of any one or more of the following elements: screws, locks, clamps, clips.
[0273] FIGS. 8A-8I respectively illustrate several front views, an enlarged front view, and five detailed front views of yet another exemplary embodiment of a luminaire head assembly.
[0274] As illustrated in FIGS. 8A-8D, the luminaire head assembly 1 comprises a base 200 comprising a light source 310, a protective casing 420 releasably attached to the base 200 and comprising a transparent or translucent portion, and a diffusor body 430 arranged in the protective casing 420. The diffusor body 430 comprises a wire frame 440 and/or a ribbed frame 450.
[0275] The base 200 may correspond to the body 200 of the embodiments of FIGS. 1A-7B, but is not limited thereto. The luminaire head assembly 1 may further comprise an upper cover 100. The base 200 may be releasably attached to the upper cover 100. The upper cover 100 may correspond to the upper cover 100 of FIGS. 1A-1F, i.e., to an upper cover suitable for the side-entry configuration of the luminaire head assembly 1, or may correspond to the upper cover 100 of FIGS. 2A-2D, i.e., to an upper cover suitable for the post-top configuration of the luminaire head assembly 1. In other words, the upper cover may be provided with an outwardly protruding portion 120 as illustrated in FIGS. 1A-1F, or may be provided with a cap 130 as illustrated in FIGS. 2A-2D. The base 200 may be configured to receive at least one of a socket (not shown; see element 230 of FIGS. 5A-5D), an antenna, a sensor. The outwardly protruding portion 120 may be configured to receive a socket assembly 700, as illustrated in FIGS. 6A-6D. Alternatively, when the upper cover 100 is not provided with an outwardly protruding portion 120, e.g. in the post-top configuration of the luminaire head assembly 1, the socket assembly 700 may be received on a top surface 110 of the upper cover 100 (see FIG. 8C). The luminaire head assembly 1 may further comprise a skirt 410 releasably attached to the base 200. The skirt 410 may surround the base 200.
[0276] The protective casing 420 may correspond to the protective casing 420 of the embodiments of FIGS. 2A-2D. A shape of the protective casing 420 may correspond to any one of a substantially conical shape as illustrated in FIGS. 8A-8D, a substantially cylindrical shape, or a combination thereof. The protective casing 420 may be releasably attached to the base 200 by means of any one or more of the following elements: screws, locks, clamps, clips. The light source 310 may correspond to the light source 310 of the embodiments of FIGS. 1A-7B. As illustrated in FIGS. 8A-8C, the luminaire head assembly 1 may comprise a protection and connection assembly 410′ comprising the protective casing 420 and a connection part 422 configured for connecting a lower end 421 of the protective casing 420 to a top end E′ of a pole P′. If the base 200 corresponds to the body 200 of the embodiments of FIGS. 1A-7B, an upper edge 423 of the protective casing 420 may be supported on a lower side of the base 200, and surround the through-hole at the lower side of the base 200. In other embodiments, the base may carry the light source at a lower portion thereof, without having a though-hole. In other words the light source does not have to be provided on a support which is removable from the body.
[0277] Optionally a color filter (not shown) may be arranged between the light source 310 and the protective casing 420. For example the color filter may be a sheet or coating arranged above a transparent or translucent portion arranged over the light source 310 in a similar manner as transparent or translucent portion 510 shown in FIG. 1D. The transparent or translucent portion may be fixed to the base 200 using a ring or annular portion similar to annular portion 520 in FIG. 1D. Optionally, such ring or annular portion may then also be used to fix the diffusor body 430. The color filter is preferably arranged such that light with a predetermined color is emitted on the diffusor body 430.
[0278] Optionally, it is possible to use a translucent portion, e.g. made of sand-blasted glass, similar to portion 510 shown in FIG. 1D between the light source 310 and the protective casing 420. Such translucent portion may be used with or without filter. The translucent portion may be fixed to the base 200 using a ring or annular portion similar to annular portion 520 in FIG. 1D. Optionally, such ring or annular portion may then also be used to fix the diffusor body 430.
[0279] The diffusor body 430 may be releasably attached to the base 200. A shape of the diffusor body 430 may correspond to any one of a substantially conical shape as illustrated in FIGS. 8A-8C, a substantially cylindrical shape, or a combination thereof.
[0280] As illustrated in FIGS. 8B and 8C, the wire frame 440 comprises at least five wires, preferably at least eight wires, more preferably at least ten wires extending downwardly from the base 200. The wire frame 440 may comprise an annular portion (not shown) releasably attached to the base 200. The wires 441 of the wire frame 440 may be fixed to the annular portion and may converge at an end of the wire frame 440 opposite the base 200. The wire frame 440 may comprise metal, e.g. a coated metal. For example, the wire frame 400 may have a white or substantially white color. The wires may be relatively thin. For example, the wires may have a substantially cylindrical shape with a diameter of less than 1 cm.
[0281] As illustrated in FIGS. 8A and 8C, the ribbed frame 450 comprises at least four ribs extending downwardly from the base 200. In the embodiment of FIGS. 8A and 8C, the ribbed frame 450 may comprise a first annular portion (not shown) at an upper edge 423 of the protective casing 420 and a second annular portion 453 (see FIG. 8D and FIG. 2C) at a lower end 421 of the protective casing 420. The ribs 451 of the ribbed frame 450 may be releasably attached to the first annular portion 452 and to the second annular portion 453. In an embodiment, such as the embodiments of FIGS. 1A-7B, the base 200 may be a body which carries a photometric unit, said photometric unit comprising the light source 310 and an electronic assembly. In such embodiment, the ribs 451 of the ribbed frame 450 may be releasably attached to the photometric unit, or to a lower side of the body. The ribbed frame 450 may comprise plastic, preferably transparent or translucent plastic.
[0282] It is noted that, when the base is implemented as in the embodiment of FIGS. 2A-2D, the diffusor body 440, 450 may be connected, preferably in a removable manner, to the body 200 and/or to the photometric unit 300 and/or to the connection part 422.
[0283] Preferably, the protective casing 420 has an axial direction extending in a direction of the pole P. and the protective casing 420 has a first length (11) measured along the axial direction. The diffusor body 440, 450 has a second length (12) measured along the axial direction, said second length being at least 20%, preferably at least 30%, more preferably at least 50% of the first length. Typically, the first length (11) is at least 20 cm, preferably at least 30 cm, more preferably at least 40 cm.
[0284] FIGS. 8E and 8F illustrate two detailed front views of the embodiment of FIGS. 8A-8D.
[0285] As illustrated in FIGS. 8E and 8F, the luminaire head assembly 1 comprises a base 200 comprising a light source 310, a protective casing 420 releasably attached to the base 200 and comprising a transparent or translucent portion, and a diffusor body 430 arranged in the protective casing 420. In the embodiment of FIG. 8E, the diffusor body 430 comprises a ribbed frame 450 with four pairs of ribs 451. In the embodiment of FIG. 8E, the diffusor body 430 comprises a wire frame 440 and a ribbed frame 450. The configuration and arrangement of the wire frame 440 and of the ribbed frame 450 discussed above with respect to FIGS. 8A-8D apply to the luminaire head assembly 1 of FIGS. 8E and 8F and will not be repeated here.
[0286] The ribs of ribbed frame 450 extend along the protective casing between an upper end and the lower end. The luminaire head further comprises one or more cables, wherein each cable extends from the base, between two ribs of the ribbed frame 450, to the connection part 422. The cable may further extend through a through-hole in the base. When the base corresponds with the body of FIG. 2B, the body 200 may be provided with one or more cable passages 295 through the body. The protective casing 420 may have an inner surface which is provided at an upper end with a plurality of threaded holes, as explained above in connection with FIGS. 2A-2D. Screws or bolts may then extend through the base 200 into the threaded holes. Two ribs 451 may also extend along the inner surface of the protective casing 420 from an upper end thereof, downwardly, next to the threaded holes, so as to at least partially hide the threaded holes. The ribs 451 may be relatively thin elongate slats shaped to follow the shape of the inner surface of the protective casing 420, and the slats may be oriented in a radial direction, perpendicular on the inner surface of the protective casing 420.
[0287] FIGS. 8G-8I illustrate three further variants with a diffusor body in the form of an inner casing 460. In the embodiment of FIG. 8G, the inner casing is a cylindrical tubular casing 460 between the base 200 and the connection part 422, and in particular between a PCB carrying LEDs 310 and the connection part 422. The PCB carrying the LEDs 310 may be mounted on a support which is part of a photometric unit 300, as described above for the other embodiments. The cylindrical tubular casing 460 may have a first open end 461 and a second open or closed end 462. A portion of the plurality of LEDs is arranged within the first open end 461, and a portion of the LEDs may be arranged outside of the open end 461 so that at least a portion of the light of the LEDs is emitted in the inner casing 460. The inner casing 460 may be a transparent or translucent casing. The inner casing 460 may be provided with a relief structure such as a plurality of grooves 465, preferably downwardly extending grooves. The inner casing 460 may be designed in different shapes and colors and may be made of various materials such as glass, plastic, etc. The grooves are shown to be lines, but any pattern of grooves is possible. For example, the grooves may form special shapes and/or text and/or a logo, or any other pattern desirable to see within the luminaire.
[0288] In the embodiment of FIG. 8H, the inner casing is a substantially conical tubular casing 460 extending from the base 200 downwardly. The PCB carrying the LEDs 310 may be mounted on a support which is part of a photometric unit 300, as described above for the other embodiments. The tubular casing 460 may have a first open end 461 and a second open or closed end 462. The PCB with the plurality of LEDs 310 is arranged within the first open end 461, so that the light of the plurality of LEDs 310 is emitted in the inner casing 460. The inner casing 460 may be a transparent or translucent casing. The inner casing 460 may be provided with a relief structure such as a plurality of grooves 465, preferably downwardly extending grooves. The inner casing 460 may be designed in different shapes and colors and may be made of various materials such as glass, plastic, etc. Again, the grooves are shown to be lines, but any pattern of grooves or other relief structures are possible. For example, the grooves may form special shapes and/or text and/or a logo, or any other pattern desirable to see within the luminaire.
[0289] In the embodiment of FIG. 8I, the inner casing is a substantially cylindrical tubular casing 460 extending from the base 200 downwardly. The PCB carrying the LEDs 310 may be mounted on a support which is part of a photometric unit 300, as described above for the other embodiments. The tubular casing 460 has a first open end 461 and a second open end 462. The PCB with the plurality of LEDs 310 is arranged within the first open end 461, so that the light of the plurality of LEDs 310 is emitted in the inner casing 460. The inner casing 460 may be a non-transparent casing, or a transparent or translucent casing. Optionally, the inner casing 460 may be provided with a relief structure. The inner casing 460 may be designed in different shapes and colors and may be made of various materials such as metal, glass, plastic, etc.
[0290] In an embodiment, the protective casing 420 has an axial direction extending in a direction of the pole P. and the protective casing 420 has a first length (11) measured along the axial direction. The inner casing 460 has a second length (12) measured along the axial direction. The lengths 11 and 12 are illustrated in FIGS. 8H and 8I. The second length 12 is preferably at least 5%, more preferably at least 10%, even more preferably at least 20%, or even at least 30% of the first length 11. Typically, the first length 11 is at least 20 cm, preferably at least 30 cm, more preferably at least 40 cm. In the embodiment of FIG. 8G, the first and the second length are substantially the same.
[0291] FIGS. 11A-D illustrate a more detailed embodiment of a luminaire head assembly with an upper cover 100, a body 200, a protective casing 420, an inner casing 460, and a skirt 410. Similar components have been indicated with the same reference numerals as in the previous embodiments and will not be described again. The inner casing 460 is an opaque casing with an anti-glare function having a relatively short length 12 measured along an axial direction, e.g. less than 40 mm. The inner casing 460 may be configured to absorb lateral light emissions by the light source 310. The inner casing 460 may have a black inner surface facing the light source 310 and an outer surface of a similar or different color.
[0292] Optionally a color filter 515 may be arranged between the light source 310 and the protective casing 420, and in particular between the light source 310 and a lower cover 500. The lower cover 500 may comprise a transparent or translucent portion 510 and an annular ring 520 and may be similar to the lower cover 500 of FIG. 1D. The lower cover 500 is attached to the body 200. Further, also the inner casing 460 may be fixed by the ring 520. To that end the inner casing may be provided with a peripheral flange 467 which is arranged between the annular ring and the transparent or translucent portion 510. Seals S1, S3 may be provided in a similar manner as described for FIG. 2D.
[0293] As shown in FIGS. 11A and 11B a central portion of the upper cover 100 may be provided with an outwardly protruding portion 120 on an upper surface 110 thereof, and the outwardly protruding portion 120 may be used for fixing a connection means 900 to the upper cover 100. The connection means 900 is configured for connecting the upper cover 100 to a bracket extending upwardly from the upper cover, e.g. a bracket as illustrated in FIG. 9F. The fixation means 900 may comprise a fixation part 910 arranged around the outwardly protruding portion 120. Thus the outwardly protruding portion 120 may be used in some embodiments for mounting a socket and in other embodiments for mounting a connection means for connecting a bracket.
[0294] The protective casing 420 and the skirt 410 may be releasably attached to the body 200 by means of bolts SC3″, extending through a peripheral flange of the protective casing 420 and through an inner flange of the skirt 410.
[0295] FIG. 12 illustrates a more detailed embodiment of a luminaire head assembly with an upper cover 100, a body 200, a protective casing 420, a wire frame 440, and a skirt 410. Similar components have been indicated with the same reference numerals as in the previous embodiments and will not be described again. Optionally a color filter 515 may be arranged between the light source 310 and the protective casing 420, and in particular between the light source 310 and a lower cover 500. The lower cover 500 may comprise a transparent or translucent portion 510 and an annular ring 520 and may be similar to the lower cover 500 of FIG. 1D. The lower cover 500 is attached to the body 200. Further, also the wire frame 440 may be fixed by the ring 520. To that end the inner casing may be provided with a peripheral flange 447 which is arranged between the annular ring 520 and the transparent or translucent portion 510.
[0296] FIG. 13 illustrates a more detailed embodiment of a luminaire head assembly with an upper cover 100, a body 200, a protective casing 420, a ribbed frame 450 with ribs 451, and a skirt 410. Similar components have been indicated with the same reference numerals as in the previous embodiments and will not be described again. Optionally a color filter 515 may be arranged between the light source 310 and the protective casing 420, and in particular between the light source 310 and a lower cover 500. The lower cover S00 may comprise a transparent or translucent portion 510 and an annular ring 520 and may be similar to the lower cover 500 of FIG. 1D. FIGS. 9A-9F respectively illustrate three exemplary embodiments of a luminaire head assembly and several exemplary embodiments of a luminaire comprising a luminaire head assembly.
[0297] FIGS. 9A and 9D illustrate a luminaire head assembly according to the post-top configuration. The luminaire head assembly comprises a body 200 provided with a through-hole (not shown) between an upper side and a lower side, an upper cover 100 releasably attached to the upper side of the body 200, and a photometric unit (not shown) releasably attached to the body 200, preferably in a tool-less manner. The photometric unit may comprise a light source at a lower portion thereof and an electronic assembly at an upper portion thereof. The luminaire head assembly may further comprise a skirt 410 releasably attached to the body 200, supported by a first peripheral area of the body 200, and at least partially surrounding the body 200. Two shapes of the skirt 410 are shown: a substantially conical shape and a stepped shape.
[0298] As illustrated in the left part of FIG. 9D, the luminaire head assembly may further comprise a protection and connection assembly 410′ comprising a protective casing 420 and a connection part 422 configured for connecting a lower end 421 of the protective casing 420 to a pole P′. An upper edge 423 of the protective casing 420 may be supported on the lower side of the body 200, within the first peripheral area, and surrounding the through-hole at the lower side of the body 200. The protective casing 420 may comprise a transparent or translucent portion. Hence, the embodiment of FIG. 9A may correspond to the embodiment of FIGS. 2A-2D.
[0299] Alternatively, as illustrated in the right part of FIG. 9D, the luminaire head assembly 1 may further comprise a bracket 600 configured to fix the upper cover 100 to a pole P′. An end E of the bracket 600 may be connected to the upper cover 100. At an end opposite the end E, the bracket 600 may be fixed to a pole connector C as described in FIGS. 7A and 7B. Hence, the embodiment of FIG. 9A may also correspond to the embodiment of FIGS. 7A and 7B.
[0300] FIGS. 9B, 9C, and 9E illustrate a luminaire head assembly 1 according to the side-entry configuration. The luminaire head assembly comprises a body 200 provided with a through-hole (not shown) between an upper side and a lower side, an upper cover 100 releasably attached to the upper side of the body 200, and a photometric unit (not shown) releasably attached to the body 200, preferably in a tool-less manner. The photometric unit may comprise a light source at a lower portion thereof and an electronic assembly at an upper portion thereof. The luminaire head assembly may further comprise a skirt 410 releasably attached to the body 200, supported by a first peripheral area of the body 200, and at least partially surrounding the body 200. Two shapes of the skirt 410 are shown: a substantially conical shape and a stepped shape.
[0301] As illustrated in FIGS. 9B, 9C, and 9E, the luminaire head assembly 1 further comprises a bracket 600 releasably attached to the upper cover 100 and configured to fix the upper cover 100 to a pole P. The bracket 600 is provided with a through-hole H at an end E thereof. A socket assembly 700 may extend at least partially in the through-hole H. The upper cover 100 is provided with an outwardly protruding portion 120 extending at least partially in the through-hole H and configured to receive the socket assembly 700. At an end opposite the end E, the bracket 600 is fixed to the pole P. Hence, the embodiment of FIG. 9A corresponds to the embodiment of FIGS. 1A-1D.
[0302] As illustrated in FIGS. 9B and 9C, the luminaire head assembly may exist in two different sizes: a smaller size as shown in FIG. 9B, and a larger size as shown in FIG. 9C. Apart from their dimensions, the design, configuration, and arrangement of the two sizes of luminaire head assembly may be equal. Another difference between both sizes may reside in the length of the bracket 600, which may be longer in the larger size than in the smaller size, as illustrated in FIGS. 9B and 9C. In FIG. 9E, the smaller size of luminaire head assembly 1 may be fixed to the pole P at a first height using a smaller bracket 600, and the larger size of luminaire head assembly 1 may be fixed to the pole P at a second height using a larger bracket 600. Preferably, the first height is smaller than the second height.
[0303] As illustrated in FIG. 9F, the luminaire head assembly 1 of FIGS. 9B and 9C may be fixed to another type of pole P. Here, the bracket 600 may not be used in the luminaire head assembly 1. Instead, the outwardly protruding portion 120 may be configured to fix the luminaire head assembly 1 to said other type of pole P. The pole P may comprise one or more curved pole portions, e.g. two curved pole portions as illustrated in FIG. 9F. An end of the one or more curved pole portions opposite the pole P may be fixed to the outwardly protruding portion 120. In this case, a socket assembly 700 may be received on a top surface of the upper cover 100. Hence, the embodiment of FIG. 9F corresponds to the so-called “suspended” configuration of the luminaire head assembly 1.
[0304] As in FIG. 9E, in FIG. 9F the smaller size of luminaire head assembly 1 may be fixed to the pole P at a first height, and the larger size of luminaire head assembly 1 may be fixed to the pole P at a second height. Preferably, the first height is smaller than the second height.
[0305] Hence, as illustrated in FIGS. 9A-9E, there is provided a set of at least a first luminaire head (see FIGS. 9B, 9C, and 9E) and a second luminaire head (see FIGS. 9A and 9D).
[0306] The first luminaire head comprises a first body 200 provided with a through-hole between an upper side and a lower side, a first upper cover 100 covering the upper side of the first body 200, and a first photometric unit with a first support which is releasably attached to the first body 200. The first photometric unit is at least partially extending in the through-hole and comprises a first electronic assembly at an upper portion thereof and a first light source at a lower portion thereof.
[0307] The first luminaire head further comprises a first skirt 410 or a second skirt 410 releasably attached to the first body 200 and at least partially surrounding the first body 200. The first skirt 410 may be different from the second skirt 410. In particular, a shape of the first skirt 410 (e.g. a stepped shape) may be different from a shape of the second skirt 410 (e.g. a conical shape). The first luminaire head further comprises a bracket 600 releasably attached to the first upper cover 100.
[0308] The second luminaire head comprises a second body 200 identical to the first body 200, a second upper cover 100 covering the upper side of the second body 200, and a second photometric unit with a second support identical to the first support which is releasably attached to the second body 200. The second photometric unit is at least partially extending in the through-hole of the second body 200 and comprises a second electronic assembly at an upper portion thereof and a second light source at a lower portion thereof. The second electronic assembly may be different from the first electronic assembly, or may be the same. The second light source may be different from the first light source, or may be the same.
[0309] The second luminaire head further comprises a protection and connection assembly 410′ releasably attached to the lower side of the second body 200. The protection and connection assembly 410′ comprises a protective casing 420 and a connection part 422 configured for connecting a lower end 421 of the protective casing 420 to a pole P′. Optionally, the second luminaire head may further comprise a first skirt 410 or a second skirt 410 releasably attached to the second body 200 and at least partially surrounding the second body 200. The first skirt 410 may be different from the second skirt 410. In particular, a shape of the first skirt 410 (e.g. a stepped shape) may be different from a shape of the second skirt 410 (e.g. a conical shape).
[0310] FIGS. 10A-10C respectively illustrate three exemplary embodiments of a bracket of a luminaire head assembly, two exemplary embodiments of a luminaire head assembly, and several exemplary embodiments of a luminaire comprising a luminaire head assembly.
[0311] As illustrated in FIG. 10C, the embodiments of FIGS. 10A-10C correspond to the side-entry configuration of the luminaire head assembly. The embodiments illustrated in FIG. 10B correspond to the embodiment of FIGS. 9B and 9C. Hence, the configuration and arrangement of the luminaire head assembly discussed above with respect to FIGS. 9B and 9C apply to the luminaire head assembly of FIG. 10B and will not be repeated here.
[0312] As illustrated in FIG. 10A, the luminaire head assembly comprises a bracket 600 releasably attached to the upper cover 100 and configured to fix the upper cover 100 to a pole (see element P′ of FIG. 10C). The bracket 600 is provided with a through-hole H at an end E thereof. A socket assembly 700 may extend at least partially in the through-hole H. At an end opposite the end E, the bracket 600 is fixed to the pole. As illustrated in FIG. 10A, three different types of bracket 600 may exist: in the first type (top part of FIG. 10A), the bracket 600 may be provided with a recess at the end opposite said end E, and may comprise a separate protruding element 601, said recess cooperating with said protruding element 601. The protruding element 601 may be configured to be inserted in the recess and secured to the recess. In the second type (center part of FIG. 10A), the bracket 600 may be provided with a protruding portion 602 at the end opposite said end E. In the third type (bottom part of FIG. 10A), the bracket 600 may be provided with a recess at the end opposite said end E.
[0313] As illustrated in FIG. 10C, at the end opposite said end E the bracket 600 is fixed to a pole connector C. The pole connector has a first end E1 where the bracket 600 is fixed to the pole connector C, and a second end E2 opposite said first end E1. The pole connector C is fixed to a top end E′ of the pole P′ at said second end E2. Hence, the pole connector C is configured to use the luminaire head assembly 1 in the side-entry configuration together with a vertical pole P′, i.e. with a pole P′ suitable for the post-top configuration, in a similar manner as in the embodiment of FIGS. 7A and 7B. The pole connector C may have different shapes and/or sizes, and may cooperate with the two different sizes of luminaire head assembly 1 and/or with the different types of bracket 600.
[0314] In an example, as illustrated in the left part of FIG. 10C, the pole connector C may cooperate with the smaller size of luminaire head assembly 1 and with the second type of bracket 600. In this example, the pole connector C may be provided with a recess at the first end E1 in which the protruding portion 602 of the bracket 600 is inserted and secured to.
[0315] In another example, as illustrated in the top part of FIG. 10C, the pole connector C may cooperate with the larger size of luminaire head assembly 1 and with the first type of bracket 600. In this example, the protruding element 601 is fixed to the pole connector C at the first end E1.
[0316] In yet another example, as illustrated in the right part of FIG. 10C, the pole connector C may cooperate with the smaller size of luminaire head assembly 1 and with the third type of bracket 600. In this example, the pole connector C may be provided with a protruding portion at the first end E1 configured to be inserted in the recess and secured to the recess.
[0317] In yet another example, as illustrated in the bottom part of FIG. 10C, the pole connector C may cooperate with the smaller size of luminaire head assembly 1 and with the first type of bracket 600. This embodiment corresponds to the embodiment of FIGS. 7A and 7B.
[0318] For the embodiments illustrated in the figures, the assembled luminaire head assembly has an overall round shape, i.e. any one or more of the components of the luminaire head assembly such as the body, the upper cover, the lower cover, the protective casing, the diffusor body, the skirt, may have a round shape. In other embodiments, the luminaire head assembly may have an overall polygonal shape, such as a square or rectangular shape. Thus, any one or more of the components of the luminaire head assembly such as the body, the upper cover, the lower cover, the protective casing, the diffusor body, the skirt, may have an overall polygonal shape. Also mixed shapes are possible. For example the upper cover may be round whilst the protective casing is polygonal or vice versa.
[0319] Whilst the principles of the invention have been set out above in connection with specific embodiments, it is to be understood that this description is merely made by way of example and not as a limitation of the scope of protection which is determined by the appended claims.
