Luminaire and lighting arrangement

Abstract

A luminaire or lamp (10) with an umbrella-like lamp body (16), wherein the lamp (10) has at least one lighting element (20) integrated into the lamp body (16), which in the position of use emits light at least in one downward direction. The lamp body (16) has on its underside a conical stem-like element (28), which is used to fixate the lamp (10) above the neck opening (14) of a commercially available bottle (12) is formed, the light source being arranged in a ring or wreath shape around the stem-like element and preferably above it. The lamp (10) may be easily be fixed for example in standard wine or spirit bottles and provides glare-free and effective lighting for both the bottle itself and the surrounding area.

Claims

1. A lamp (10) comprising: an umbrella-like lamp body (16), the lamp (10) having at least one lighting element (20) integrated into the lamp body (16), which in a position of use emits light at least in one direction downwards, wherein the lamp body (16) has a stem-like element (28) on its underside, which is designed to fixate the lamp (10) in the neck opening (14) of a commercially available bottle (12), wherein the lighting element (20) has at least a ring or a wreath of light emitters (44), which is arranged around the stem-like element (28), and whereas the lighting element (20) or at least one of the lighting elements (20) is positioned above the stem-like element (28) or in an area of the base of the stem-like element (28) or above the stem-like element's (28) front end, which front end faces away from the lamp body (16), wherein the stem-like element (28) is conical on the outside and has a recess (30) which is open towards the free end of the stem-like element (28) and which must not necessarily extend to the bottom of the stem-like element (28), and that the stem-like element (28) consists of an elastic material (36) at least in the area of the recess (30), such that the stem-like element (28) is compressible by a predetermined amount when fixated in the neck opening (14) of a commercially available bottle (12), so that a reliable frictional fixation in a bottleneck opening (14) and/or an adaptation to non-round bottleneck openings can be achieved.

2. The lamp (10) according to claim 1, wherein the stem-like element (28) is at least partially conical on the outside with a cone angle 4.

3. The lamp (10) according to claim 1, wherein the stem-like element (28) is formed at least on its outside from a rubber-elastic material (36).

4. The lamp (10) according to claim 3, wherein the recess (30) open to the free end of the stem-like element (28) does not extend to the bottom of the stem-like element (28).

5. The lamp (10) according to claim 3, wherein the stem-like element (28) has a harder core made of a solid plastic or metal, and that this core has fastening means so that the stem-like element can alternatively be fixated by a screw connection after removing the external rubber-elastic material (36).

6. The lamp according to claim 1, wherein the stem-like element (28) has one or more of the following dimensional or material properties: the length of the stem-like element (28) corresponds to 30% to 100% of the total height of the lamp body (16); and/or the total length of the stem-like element (28) is between approximately 30 mm and approximately 50 mm; and/or the outer diameter of the stem-like element (28) is between approximately 10 mm and approximately 25 mm; and/or the outer diameter of the stem-like element (28) tapers from a diameter on the lamp body (16) between 19 mm to 22 mm to a diameter at the free end between 15 mm to 18 mm; and/or the stem-like element (28) has a central, longitudinally extending recess (30) which is open towards the free end and has a diameter between 5 mm and 12 mm; and/or the stem-like element (28) has a central, longitudinally extending recess (30) which is open towards the free end and which extends only over approximately 30% to 60% of the length of the stem-like element (28); and/or the stem-like element (28) is made of food-safe materials (36).

7. The lamp (10) according to claim 1, wherein the at least one lighting element (20) integrated into the lamp body (16) comprises a ring or wreath formed of at least three light-emitting diodes (44) distributed uniformly over the circumference and/or formed of at least one linear LED, wherein the main emission direction of the LEDs (44) in each case points downwards.

8. The lamp (10) according to claim 1, wherein at least one of the lighting elements (20) formed from ring-shaped or ring-shaped lighting element has a ring or has a wreath radius about 3.5 cm, so that this ring or wreath radius is smaller or not significantly higher than the radius of conventional bottles.

9. The lamp according to claim 1, wherein the lamp (10) in the state fixated in a bottle (12) can be fixated above the bottle opening (14) by the stem-like element (28) in such a way that the bottleneck area (40) is not covered by the umbrella-like lamp body (16) or is only covered in a mouth area (14) of the bottleneck area (40), so that light from a ring-shaped or wreath-shaped lighting element (20) radiating downwards can be reflected circumferentially into the surrounding space by the uncovered, upwardly tapering bottleneck surfaces.

10. The lamp (10) according to claim 1, wherein a battery or rechargeable battery element (34) is integrated into the lamp body (16), through which the at least one lighting element (20) can be supplied with power wirelessly.

11. The lamp (10) according to claim 1, wherein the umbrella-like lamp body (16) is made of a non-transparent material, so that the lamp (10) essentially only emits downwards.

12. The lamp (10) according to claim 1, wherein the umbrella-like lamp body (16) is round in top and bottom view, and that on its top at least one button-like or contactless switching element (22) is provided for on/off switching of the at least one lighting element (20) and optionally for brightness and/or light color adjustment, the switching element (22) being optionally opaque and translucently illuminated from the inside by the lighting element (20) integrated in the umbrella-like lamp body (16), whereas the umbrella-like lamp body (16) is splash-proof and/or protects against the ingress of foreign bodies.

13. A lamp arrangement, comprising: a lamp (10) according to claim 1 and a bottle (12) as a lamp holder, in the bottleneck opening (14) of which the lamp (10) can be fixated by virtue of the stem-like element (28).

14. The lamp (10) according to claim 1, wherein the stem-like element is formed at least on its outside from a silicone elastomer.

15. A lamp, comprising: an umbrella-like lamp body having a stem-like element on its underside, designed to fixate the lamp in a neck opening of a bottle; at least one lighting element integrated into the lamp body, and having at least a ring or a wreath of light emitters arranged around the stem-like element, wherein the at least one of the lighting element is positioned above the stem-like element, in an area of the base of the stem-like element, or above the stem-like element's front end, which front end faces away from the lamp body, wherein the stem-like element is conical on the outside and has a recess which is open towards the free end of the stem-like element, wherein the stem-like element comprises an elastic material at least in the area of the recess, such that the stem-like element is compressible by a predetermined amount when fixated in the neck opening.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is explained in more detail below using the exemplary embodiment shown in the drawings, whereby the drawings show:

(2) FIG. 1 shows an overall sectional view of a lamp according to the invention with a transparent water bottle as a lamp base;

(3) FIG. 2 is a schematic representation of the lamp according to FIG. 1 in a state removed from the bottle;

(4) FIGS. 3a, b show schematic bottom views of the lamp from FIG. 2 according to the invention; and

(5) FIG. 4 is a schematic sectional view of a stem-like element with a recess.

DETAILED DESCRIPTION OF THE INVENTION

(6) A lamp generally designated with 10 (without considering the bottle 12 serving as a holder) hasthe exemplary embodimenta typical conical lampshade shape in, although, as mentioned, other shapes (cylindrical, polygonal based shapes, hemispherical shape, etc.) would also be possible. The bottles used will often be empty. However, if the stem-like element is designed to be suitable for foodstuffs, it is also possible to close a completely or partially filled bottle with the lampshade. If necessary, the bottle may be filled with at least water or a colored liquid in order to increase stability on the one hand and to achieve an additional optical effect through the illuminated liquid interface on the other hand.

(7) The lamp 10 has a lamp body 16, in the interior 24 of which a circumferential LED ring or LED wreath is provided (shown schematically)also referred as lighting element 20, the light of which emerges from the underside of the lamp body 16 through a satin-finished plastic disk 18, which serves as a diffuser. The terms ring or wreath should be used synonymously, whereby the lighting effect may be created both by individual LEDs arranged at predetermined angular distances and by correspondingly curved linear LEDs.

(8) In FIG. 3b, the individual LEDs 44 arranged in a ring or wreath shapeconsisting of 16 LEDs in the exampleare indicated schematically, whereby the number and angular spacing of the LEDs can of course vary within a wide range. The ring or wreath radius is chosen so that in commercially available bottles the lighting element 20 does not protrude or does not protrude significantly beyond the bottle body. For example, slim wine bottles typically have a radius of approximately 3 cm, so that with a positioning at approximately 3 cm (possibly also 3.5 cm) the bottleneck and bottle shoulder structures can be optimally illuminated.

(9) In addition to the arrangement shown, a variety of other arrangements are conceivable. For example, several LED rings may be provided, LEDs may shine directly downwards on a plate without a diffuser, etc., and additional lighting elements may also be provided that may radiate diffusely upwards or illuminate the screen surfaces, although in the exemplary embodiment the screen-except for the backlit sensor switch-is non-transparent on the side and top.

(10) In the area of the LED ring and surrounding the LEDs, a curved reflector element 42 is provided in the interior 24 of the lamp 10 in order to optimize the light distribution and light output. The reflector element 42 is in the exemplary embodiment made as a one-piece rotating body made of reflective metal (e.g. aluminum), which extends approximately from the outer edge of the screen or diffuser 18 to the radial starting point at the beginning of the stem-like element 28 and directs the light essentially evenly downwards, the light also being deliberately directed onto the area along the stem-like element 28 in particular to illuminate the bottleneck area 40.

(11) The diffuser plate 18 is offset in the umbrella-like lamp body 16 by a distance d (e.g. offset upwards by approximately 1 to 2 cm) in the upper direction, i.e. the edge of the lamp body 16 remaining underneath prevents the lighting element from being directly visible and thus glare effects are prevented.

(12) As can be seen in the exemplary embodiment, the lighting element 20 are positioned slightly above the base of the stem-like element 28 (which coincides with the diffuser plate).

(13) It would also be conceivable within the scope of the invention to bring the lighting element 20 to a lower position using suitable support structures (not shown) projecting from the lower edge of the lamp body. However, within the scope of the invention, the lighting element (or at least not all lighting elements, if several are provided) should not be arranged deeper than the front end of the stem-like element 28 facing away from the lamp body 16.

(14) As indicated by the arrows in FIG. 1, the light radiating essentially downwards is reflected or redirected through the curved areas of the bottleneck or the bottle shoulder, creating interesting lighting effects.

(15) The LEDs of the LED ring 20 are preferably warm tone or warm white LEDs or LEDs that can be switched between these modes. Colored or color-adjustable RGB or RGBW LEDs are also possible.

(16) A battery, schematically designated as 34, is also integrated into the lamp body 16 which can be charged via cable connections (not shown) and charging and control electronics (not shown) via a USB charging port 26 on the underside of the lamp body 16 (e.g. according to the USB-C or Micro-USB standard), although other connection types, such as a connection for a jack plug or inductive charging, may also be utilized.

(17) The charging connection 26 is integrated into the diffuser plate and is preferably provided with a captive protective cap. The integration of the charging connection 26 into the diffuser platewhich points downwards in the position of use and is therefore protectedsimplifies splash protection, so that the lamp according to the inventionwith a sufficiently sealed switch at the top and an otherwise tight housingmay be basically also suitable for outdoor use (at least with protection against falling dripping water). In particular, the housing may be protected according to IP44.

(18) Since the lamp 10 can be removed and turned over very easily from the object serving as a base, in particular from a bottle 12 used as a base, the charging connection 26 in the lamp 10 according to the invention is particularly easy and convenient to access. The charging process may be signaled by colored LEDs (not shown) integrated behind the diffuser plate 18, e.g. red LED=charging in progress, green LED=charging completed.

(19) The lighting element may be switched on and off via a push switch 22, which is positioned centrally in the top of the lamp body 16, and the brightness may optionally be adjusted via an electronic dimmer circuit by pressing and holding for a longer period of time. The push switch 22 is preferably designed as a sensor button and is preferably designed so that no light is accidentally switched on, even with a lamp turned upside down, in which the switch area serves on a support surface. The button of the switch 22 can be made opaque so that it lights up when the lighting elements inside the lamp body are activated.

(20) When the batteries are fully charged, the lighting duration is typically several hours. In the exemplary embodiment, the lamp body 16apart from the diffuser plate 18is designed to be non-transparent, i.e. the usual glow of a lampshade is not present here, but would be possible by appropriate choice of material; further, if necessary, additional internal lighting elements (possibly in colors other than those of the downward-pointing lighting element) may also be implemented.

(21) It would also be conceivable that one or more additional lighting devices, for example one or more LEDs, could also be provided on the underside or on the edge of the stem-like element 28.

(22) A special property of the lamp 10 according to the invention is that it can be fixed in the neck of a standard open bottle 12 via a stem-like element 28 with one grip.

(23) For this purpose, the conically tapering stem-like element 28 consists essentially of a rubber-like material 36, in the exemplary embodiment of a silicone elastomer, which is either applied or attached to a harder plastic core (not shown), or which has a central recess 30 and fixates the lamp 10 in bottlenecks with a (within certain limits) variable diameter.

(24) To fixate the lamp body 16, a positive or frictional connection of the stem-like element in the bottleneck 14 by means of the rubber-elastic material is desirable, but not absolutely necessary.

(25) For bottles 12 with a larger neck diameter than the maximum diameter of the stemlike element 28, it is usually sufficient if the stem-like element 28 is inserted loosely into the bottleneck. Then the lower end surface of the lamp body 16 (usually the diffuser plate 18) rests on the edge of the bottleneck 14 and holds the lamp body 16 in a straight, upright position. This is the lowest position of the lamp according to the invention in relation to the bottle opening. For narrower bottlenecks, the actual height is determined by the possible insertion depth of the stem-like element 28.

(26) Since the mentioned lower end surface of the lamp body (the diffuser) 18 is expediently projected beyond the outside by an edge of the lampshade (of width d) in order to avoid direct visibility of the diffuser plate and thus of the light source (glare protection), it may occur at the lowest position (i.e. with a wide bottleneck and the bottle mouth resting almost directly on the diffuser plate) that the edge of the lampshade protrudes slightly beyond the uppermost mouth section of the bottleneck.

(27) In FIG. 4, a preferred variant of the stem-like element 28 with recess 30 is shown schematically in a sectional view. The recess 30 causes the remaining tubular elastic material 36as indicated by the arrows in FIG. 4to be compressed, whereby the stem-like element 28 can be held particularly well in a frictional manner. Furthermore, the stem-like element 28 can adapt to non-round bottle opening cross-sections within limits and can even seal the bottle. The recess 30 does not extend to the bottom of the stem-like element 28, but rather merges into a recess 38 with a smaller cross section to accommodate a fastening screw (not shown), which may be screwed into a threaded counterpart in the lamp body and which is accessible via the recess 30, so that an alternative fastening-such as a usual rod with a base (not shown)or a corkscrewlike connecting element, also not shown, can be screwed on relatively easily. For temporary fastening, such alternative connecting elements can also simply be inserted into the recess 30 with a stem-like element present.

(28) The recess 30 is preferably round, but can also have a different contour, e.g. a polygonal contour.

(29) The stem-like element 28 is fixed to the lamp by means of a screw (not shown) sunk into the bottom of the recess 30, the recess 30 preferably not extending over the entire length of the stem-like element, so that the rubber-elastic material 36 at the bottom of the recess provides a counter bearing for the screw. The screw is therefore easily accessible via the recess 30e.g. for repair purposes.

(30) If necessary, electrical contacts may also be provided on the stem-like element 28 to enable more convenient charging in special charging stations, which can also serve as an alternative lamp base (not shown).

(31) The lamp 10 according to the invention achieves particularly favorable and glare-free lighting, e.g. when used with glass bottles, e.g. for use on restaurant tables, since the light from the lamp body 16, which shines primarily downwards, is partially reflected by the bottleneck area 40 or the bottle shoulder 32 and thus illuminates the surroundings without undesirable glare effects.

(32) Typical dimensions of an exemplary embodiment of a lamp according to the invention are (each approximately dimensions) are:

(33) TABLE-US-00001 Total shade height (edge to top): approx. 90 mm Distance diffuser plate 18 from the edge of the shade: approx. 16 mm Total length of the stem-like element 28 (measured approx. 41 mm from the diffuser plate 18): Diameter of the stem-like element 28 on the diffuser approx. 21 mm plate 18: Diameter of the stem-like element 28 at the end: approx. 17 mm Diameter of the recess in the stem-like element 28: approx. 9 mm Depth of the recess in the stem-like element 28: approx. 25 mm Cone angle: approx. 5.7 Radius LED ring: approx. 29 mm Umbrella diameter at the bottom edge: approx. 120 mm Shade diameter upper face: approx. 80 mm

(34) This dimensioning example, which may of course be deviated from in many ways, is suitable for fixing to a wide variety of common bottlenecks.

(35) From a design point of view, the upper area of the screen in particular may be designed in a variety of modified ways, whereas on the other hand sizes such as the approximate lower shade diameter, the radius of the LED ring and the dimensions of the stem-like element are preferably retained essentially as above, since these sizes are tailored to the dimensions of common bottles. Possible deviations from the above-mentioned sizes adapted to the bottle can e.g. be 10%.

(36) For example, from a design perspective, the screen could have a polygonal contour, e.g. rectangular with rounded corners, or have a curved outer contour, which can be used to create a designer look similar to lampshades with pleated folds. Other design variants could include for example a purely cylindrical shape of the umbrella, i.e. not tapering upwards, whereby a conical shape of the outer contour may also be combined with one or more cylindrical sections, e.g. a conical shape at the top and a cylindrical end ring at the bottom. Furthermore, the casing curve spanning the outside of the screen could also be curved, i.e., the screen could, for example, be designed in a bell-shaped or hemispherical or ellipsoidal manner.

(37) In this example, the stem-like element 28 has a total length which corresponds to approximately 45% of the total height of the lampshade, whereby the protrusion of the edge of the shade relative to the diffuser plate 18in the example of 16 mmcauses that the stem-like element 28 (which is based on the diffusor plate 18) protrudes at a total of only approximately 25 mm (41 mm-16 mm) beyond the edge of the umbrella.

(38) For very wide bottlenecks that have a larger diameter than the maximum diameter of the stem-like element 28, the lamp body sits on the bottleneck with its lower horizontal end, the diffuser or with a stop flange provided at the foot of the stem-like element. In this case, the bottleneck is partially covered by the projection d, but only to a small extent (in the example, by approximately 16 mm). Essentially, the bottleneck remains free, especially if it is narrower and the stem-like element 28 sits higher.

LIST OF REFERENCE SIGNS

(39) 10 Lamp (without bottle) 12 Bottle 14 Bottleneck mouth 16 Umbrella-like lamp body 18 Bottom base/diffuser 20 Lighting element/LED ring 22 On/off/dimming button 24 Inner space 26 Charging plug connection (USB) 28 Stem-like element 30 Recess 32 Bottle shoulder 34 Integrated battery 36 Rubber-elastic material/elastomer 38 Through hole for mounting screw 40 Bottleneck area 42 Reflector 44 Individual LEDs d edge projection