Orientation specific luminaire
12085274 ยท 2024-09-10
Assignee
Inventors
Cpc classification
F21V5/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V5/007
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V21/008
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V14/06
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V14/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21S8/046
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21Y2105/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21Y2115/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V5/08
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F21V5/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V14/06
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V21/008
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
An orientation specific luminaire is coupled to lensed optics configured to illuminate vertical and horizontal surfaces within elongated spaces at predetermined light intensity levels, where needed, and with predetermined uniformity ratios within a surface and between surfaces. The orientation specific luminaire includes an orientation mounting hub, the orientation of which is user settable such that the lensed optics emit light from the luminaire's light sources to illuminate vertical and horizontal surfaces within elongated spaces at predetermined light intensity levels.
Claims
1. An orientation specific luminaire for illuminating a space from above an aisle, the orientation specific luminaire comprising: a downward facing side that faces a floor of the aisle, and has a predetermined orientation set in relation to at least one of a longitudinal axis of the aisle and a first vertical surface that defines a first side of the aisle; a light source including a plurality of lamps distributed across a planar structure that is located on the downward facing side of the orientation specific luminaire, the plurality of lamps having a substantially common orientation on the planar structure, and an orientation specific lens includes a plurality of lens elements that respectively cover the plurality of lamps, light that passes through each of the plurality of lens elements exhibits a substantially common light distribution pattern with respect to the floor and the first vertical surface, an aggregate light intensity distributed along the first vertical surface and across the floor is generated from an aggregated quantity of the plurality of lamps and directed by the plurality of lens elements, wherein the orientation specific lens is settably repositionable about a central axis of the orientation specific luminaire, and a central longitudinal axis of a horizontal light pattern of the aggregation of light is aligned in parallel with at least one of the first vertical surface and the floor, and an intensity of the light emitted through the orientation specific lens is set in relation to a distance of the light source to at least two targeted subfields of illumination on the floor and at least two vertical subfields of illuminations on the first vertical surface.
2. The orientation specific luminaire of claim 1, wherein at least one of the at least two targeted subfields of illumination on the floor are adjacent horizontal subfields, or at least two vertical subfields of illuminations on the first vertical surface are adjacent vertical subfields.
3. The orientation specific luminaire of claim 1, wherein an average vertical illuminance of a subfield of illumination located on a face of the first vertical surface at adult human eye level is greater than an average vertical illuminance of a subfield of illumination located on the first vertical surface 7-0 above the floor.
4. The orientation specific luminaire of claim 1, wherein each lens element of the plurality of lens elements has an asymmetrical shape.
5. The orientation specific luminaire of claim 1, wherein the lens elements are configured to direct light rays above 45? from nadir toward the first vertical surface.
6. The orientation specific luminaire of claim 1, wherein at least two of the plurality of lens elements are fabricated in a single structure.
7. The orientation specific luminaire of claim 6, wherein the single structure includes two lenses with different optical properties.
8. An orientation specific luminaire having an orientation specific lens, the orientation specific luminaire comprising: a downward facing side that faces a floor of the aisle, and has a predetermined orientation set in relation to at least one of a longitudinal axis of the aisle and a first vertical surface that defines a first side of the aisle, and a light source including a plurality of lamps distributed across a planar structure that is located on the downward facing side of the orientation specific luminaire, the plurality of lamps having a substantially common orientation on the planar structure, the orientation specific lens comprising: a plurality of lens elements that respectively cover the plurality of lamps, light that passes through each of the plurality of lens elements exhibits a substantially common light distribution pattern with respect to the floor and the first vertical surface, an aggregate light intensity distributed along the first vertical surface and across the floor is set by an aggregate quantity of the plurality of lamps with and the plurality of lens elements, wherein the orientation specific lens is settably repositionable about a central axis of the orientation specific luminaire, and a central longitudinal axis of a horizontal light pattern of the aggregation of light is aligned with the longitudinal axis of the aisle, and upon energizing the orientation specific luminaire, an average illuminance light level within an inclusionary range on a face of the first vertical surface exceeds an average illuminance light level measured below the inclusionary range and an average illuminance light level measured above the inclusionary range, the inclusionary range includes an average eye level of an adult human with respect to the floor and predetermined distances above and below the average eye level of the adult human, the average eye level of the adult human being in an inclusive range of 4 feet through 7 feet above the floor.
9. The orientation specific luminaire of claim 8, wherein a maximum to minimum horizontal uniformity ratio of illumination on the first vertical surface is no greater than 1.3:1.0.
10. The orientation specific luminaire of claim 8, wherein a maximum to minimum vertical uniformity ratio of illumination on the first vertical surface is no greater than 4.0:1.0.
11. The orientation specific luminaire of claim 8, wherein light exit angles from the orientation specific lens of the luminaire relative to a nadir of the luminaire that are greater than 45? are less than 5% of a total luminaire light flux directed downwardly.
12. The orientation specific luminaire of claim 8, wherein a maximum vertical light level measured at the face of the first vertical surface is between 2-0 above and below the average eye level of the adult human.
13. The orientation specific luminaire of claim 8, wherein an average horizontal light level ratio measured at 36 above a center of the aisle and an average vertical light level measured at 60 above the floor at the face of the first vertical surface is less than 2.2.
14. The orientation specific luminaire of claim 8, wherein a light emittance pattern of the orientation specific lens is set to correspond with at least a width of the floor, a height of the first vertical surface, and an average light emitted intensity level across a height on the first vertical surface adjacent to the floor.
15. An orientation specific luminaire comprising: a downward facing side that faces a floor of the aisle, and has a predetermined orientation set in relation to at least one of a longitudinal axis of the aisle and a first vertical surface that defines a first side of the aisle, the aisle having an overhead ceiling, the orientation specific luminaire being mounted to a support structure above; a first light source including an array of lamps distributed across a first planar structure that is located on the downward facing side of the orientation specific luminaire, the array of lamps having a substantially common orientation on the planar surface; a second light source that includes a plurality of lamps covered by lamp dedicated lenses coupled to a second planar surface, the first light source includes at least two lamps positioned opposite to one another in proximity to an outer parameter of the second planar surface, the second planar surface is coupled to the downward facing side of the orientation specific luminaire, wherein an orientation of the plurality of lamps is substantially the same, a light distribution pattern generated by light emitted through the lamp dedicated lenses is substantially the same, a directionality of the light emitted through at least one lens of the lamp dedicated lenses is configured in relation to floor and the first vertical surface, an intensity of downwardly directed light emitted by the orientation specific luminaire is produced by an aggregate quantity of the plurality of lamps covered by the lamp dedicated lenses, the orientation specific luminaire is configured to be oriented about central vertical axis thereof so that a longitudinal central axis of an elongated horizontal light emittance pattern generated by the optical lenses aligns with a longitudinal elongated central axis of the aisle, and upon energizing the orientation specific luminaire, the first light source illuminates a surface above the luminaire and the second light source illuminates the floor below the luminaire and the first vertical surface adjacent to the floor.
16. The orientation specific luminaire of claim 15, wherein the second planar surface is positioned below the first planar surface.
17. The orientation specific luminaire of claim 15, further comprising a coupled switch configured to control at least one of a light source color temperature, a light source intensity, and the first source, or the second light source.
18. The orientation specific luminaire of claim 15, further comprising at least one egress light source that is coupled to a housing of the luminaire.
19. The orientation specific luminaire of claim 15, further comprising an orientation specific hub that is coupled to the orientation specific luminaire.
20. The orientation specific luminaire of claim 15, wherein the first light source and the second light source are configured to couple to any of the first planar surface or second planar surface without optically sacrificing light emittance intensity and directionality.
21. An orientation specific lens structure comprising: a plurality of lens elements that respectively cover a plurality of lamps, the plurality of lamps are distributed across a planar structure that is located on a downward facing side of an orientation specific luminaire, the plurality of lamps having a substantially common orientation on the planar structure, light that passes through each of the plurality of lens elements exhibits a substantially common light distribution pattern with respect to a floor and the first vertical surface of an aisle over which the luminaire is disposed, an aggregate light intensity distributed along the first vertical surface and across the floor is generated from an aggregated quantity of the plurality of lamps and directed by the plurality of lens elements, wherein an orientation specific lens is settably repositionable about a central axis of the orientation specific luminaire, and a central longitudinal axis of a horizontal light pattern of the aggregation of light is aligned in parallel with at least one of the first vertical surface and the floor, an intensity of the light emitted through the orientation specific lens is set in relation to a distance of the light source to at least two targeted subfields of illumination on the floor and at least two vertical subfields of illuminations on the first vertical surface, and an average vertical illuminance of a subfield of illumination located on a face of the first vertical surface at adult human eye level is greater than an average vertical illuminance of a subfield of illumination located on the first vertical surface 7-0 above the floor.
22. The orientation specific lens structure of claim 21, wherein at least one of the at least two targeted subfields of illumination on the floor are adjacent horizontal subfields, or at least two vertical subfields of illuminations on the first vertical surface are adjacent vertical subfields.
23. The orientation specific lens structure of claim 21, wherein no more than 5% of overall of light emitted through the orientation specific lens at angles exceeding 45? from nadir falls on the floor.
24. The orientation specific lens structure of claim 21, wherein each lens element of the plurality of lens elements has an asymmetrical shape.
25. The orientation specific lens structure of claim 21, wherein the lens elements are configured to direct light rays above 45? from nadir toward the first vertical surface.
26. The orientation specific lens structure of claim 21, wherein at least two of the plurality of lens elements are fabricated in a single structure.
27. The orientation specific lens structure of claim 26, wherein the single structure includes two lenses with different optical properties.
28. The orientation specific lens structure of claim 21, wherein a maximum to minimum horizontal uniformity ratio of illumination on the first vertical surface is no greater than 1.3:1.0.
29. The orientation specific lens structure of claim 21, wherein a maximum to minimum vertical uniformity ratio of illumination on the first vertical surface is no greater than 4.0:1.0.
30. The orientation specific lens structure of claim 21, further comprising another plurality of lens elements disposed over another plurality of lamps disposed on another planar structure.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) A more complete appreciation of the disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
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DETAILED DESCRIPTION WITH REFERENCE TO DRAWINGS
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(14) In a different embodiment, at least one element of the mechanical orientation device can couple the top surface of the luminaire enabling the luminaire to rotate about its central vertical axis. The single point mount can eliminate the need for a secondary support structure (not shown), saving material costs and installation production time.
(15) The single point mount can eliminate the need for a secondary support structure (not shown), saving material costs and installation production time. The present embodiment includes an orientation specific luminaire 5 with orientation specific optics and a mechanical orientation device that enables orienting the luminaire 5 in relation to at least one of, the longitudinal axis of the racked aisle 10 and a vertical surface of a rack face 2.
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(17) For graphic clarity the present figure shows the light rays 16 extending away from the orientation specific luminaire across only one half of the racked aisle 40. The light rays 16 also show only one vertical slice of light rays 16 extending from the aisle floor 1 to the top tier of the racked surface 2. The light rays illuminating the targeted subfield of illumination can overlap their illumination coverage onto at least one adjacent subfield of illumination 8. It is noted that precisely overlapping the illumination coverage over the subfields of illumination 8 can improve the illumination uniformity of the entire field of illumination.
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(20) The exit angles of the emitted light, the lens light dispersion optical pattern, and the LED lamp intensity are set in relation to the height 25 of the vertical surface 2 that the orientation specific luminaire 5 is tasked to illuminate.
(21) It is noted that the structure of the present embodiment re-directs light from a light source from a horizontal planar surface of the orientation specific luminaire 5 onto a vertical surface 2 of an elongated space, concentrating the light emitted along a horizontal band 19 at a specific height above a floor 30 while maintaining an excellent maximum to minimum uniformity ratio of 3:1 across the entire surface of the vertical surface 2. The vertical uniformity ratio discussed can be constructed as a base line for good design. The lensed optics of the present orientation specific luminaire can be configured to provide better lighting uniformity ratios.
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(23) Therefore, the eye coverage of an adult human looking straight at a vertical surface 2 of an elongated space illuminated by an orientation specific luminaire 5 falls on a higher vertical illuminance band extending across a portion of the vertical height 25 of the vertical surface 2. The vertical illuminance band width can vary based on the width of the horizontal aisle 1 and/or the placement of the orientation specific luminaire 5 above. However, the illumination ratios pertaining to the vertical illuminance on the vertical surface 2 of the elongated space can remain unchanged.
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(26) A scaled adult human traversing the horizontal surface of the elongated space aisle 1 is shown juxtaposed next to a high vertical surface 25. The vertical surface 2 represents a racked surface. The adult human eyes level 30 above the horizontal aisle surface is approximately 5-0 as shown in dashed line.
(27) The adult human cone of vision is approximately 60?. The eyes of an adult human looking straight at the rack 2 face perceive a vertical area centered at approximately the human eye level 30. The intense illuminance band extending the length of the vertical surface 2 face is formed by the adjacent surfaces above/below (dashed lines 19) the human eye level 30. The portion of the surface within the upper and lower dashed lines of horizontal band 19 is an illustration of the inclusive range.
(28) The figure illustrates that by dividing the light emitted through each luminaire 5 lensed optics into a horizontal surface and a vertical surface, the overall luminaire efficiency is increased. Limiting the horizontal surface 1 optical light exit angle of the luminaire 5 to a maximum of 45? reduces luminaire's optical losses and eliminates veiling glare, wherein the balance of the downwardly directed light of the luminaire 5, that includes high exit angle light rays, can then be directed away from the eyes of an adult human traversing the horizontal surface of the aisle 1 toward the vertical racked surface 2.
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(30) The distance between the two luminaires 5 mounted above an elongated space has financial implications for material, installation, energy, and maintenance costs. Therefore, spacing luminaires as far apart as possible is desirable.
(31) The optical lenses of the orientation specific luminaire are configured to provide the light level intensity where needed, maintain lighting uniformity, and reduce glare while positioned far apart. It is noted that the H3/H1 ratio (known as the spacing to mounting height ratio) of the present orientation specific luminaire coupled to the lensed optics can be at least 1.35.
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(33) The component tasked with illuminating the vertical surface 2 is further divided into two horizontal bands, one that illuminates vertical surfaces equal to or less than a 45? exit angle in relation to nadir, referred to herein as the low angle band, and the other band where the light exit angles in relation to nadir exceed 45? referred to herein as the high angle band. It is noted that the high angle band is higher than the eye level of an adult human 30.
(34) Further, a review of
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(36) The polar diagram of the lensed optics of the orientation specific luminaire shows that peak vertical light emittance from the luminaire in relation to nadir 16 is between 20? and 20? (e.g., 15?) on either side of nadir 16 transversely to the elongated space longitudinal axis. The radiation pattern in the vertical component is highly directional as it has no up-light component and a lower light emittance intensity between nadir 16 and 10? at both sides of nadir 16.
(37) The polar diagram of the lensed optics of the orientation specific luminaire shows that the horizontal light emittance pattern from the luminaire is roughly rectangular, with no null zones, wherein the longitudinal long axis of the pattern generated coincides with the long longitudinal axis of the elongated space or is parallel to at least one adjacent vertical surface. The pattern also shows relative equal light emittance intensity along the long legs of the rectangular pattern. The light emitted along the long legs is configured to illuminate the vertical surfaces of the elongated space.
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(40) The present figure shows the wings extending outwardly and away from one another in the opposite direction. This emission pattern shown infers that each of the wings is configured to illuminate vertical surfaces at an opposite side to one another. In a different optical arrangement, where an only one sided butterfly wing is used, the luminaire light emittance is directed toward a single vertical surface. In at least one lens optical embodiment, the other side of the lens can have a different light distribution.
(41) The floor directed light 332 of the present wire frame 3D web is shown between the two wings. The floor directed light 332 intensity outwardly is shorter than the vertical surface directed light 332. The present innovation restricts the light emitted over the horizontal surface of the elongated space to eliminate/reduce apparent glare by limiting the light exiting the luminaire to below 45? from the luminaire's nadir. As a result, the light emission intensity pattern is shorter.
(42) As with the horizontal light emittance pattern shown in
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(48) The lens board structure 368 with the plurality of lamp dedicated lenses can be mounted to a luminaire structure positioned precisely over the lamp the individual lens is dedicated to. A luminaire can employ at least one lens board structure. The lens board structure 368 can include domed lenses that are at least one of, a symmetrical light distribution pattern, an asymmetrical light distribution pattern, and a combination of both light distribution patterns thereof.
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(53) The light source retaining board with lensed optics 24 above, of the orientation specific and/or the non-orientation specific luminaire 5 can take any form. The use of reduced form light source in conjunction with dedicated reduced lens optics is a relatively new optical design approach. This design approach marks a departure from art that relies on a light source retaining board with a lens optical distribution of narrow, medium, and wide light patterns.
(54) The lenses used with the luminaire 5 may be customized for an application while capable of illuminating at least one vertical and horizontal surface/s meeting light levels targeted.
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(56) The present figure orientation specific lens optical light emittance pattern is pre-configured in relation to at least one horizontal surface and at least one adjacent vertical surface, and a plurality of same design lenses placed over their respective dedicated lamps illuminate the targeted surfaces at the targeted illuminance levels where needed.
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(58) The present figure orientation specific lens optical light emittance pattern is pre-configured in relation to at least one horizontal surface and at least one adjacent vertical surface, and a plurality of same design lenses placed over their respective dedicated lamps illuminate the targeted surfaces at the targeted illuminance levels where needed.
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(61) The light sources 3, 361 coupled to the PCB 15,362 can be energized by at least one circuit (not shown). The plurality of circuits can control the light emitted by an individual PCB 15, 362 or individual lights on the PCB 15, 362. For example, during off hours, LEDs that emit UV light can decontaminate a space. The PCB 15, 362 with its coupled light sources 3, 361 and lensed optics can be detachable and replaceable by different lensed optics 24, 360 as needed.
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(64) The present embodiment shows at least two lamps 3, 361 covered by the lensed optics 24, 360 at opposite side of the luminaire 5 structure. Having the lamps 3, 361 positioned above and away from the electronic device housing 22 of the luminaire 5 eliminates the risk of shadowing a portion of the ceiling. Further, placing the up-light lamps 3, 361 at the luminaire's 5 outer perimeter having a through air gap between these up-light lamps 5 and the downlight directed lamp 5 light helps cool the lamps 5 during operation.
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(66) Other elements shown coupled to the luminaire 5 include a mounting cable/chain 6, a power and/or data conductor 17, and the luminaire's electronic device housing 22.
ELEMENT LIST
(67) 1. Horizontal Aisle Surface/Floor 2. Vertical Surface/Rack Face 3. Light Source 4. Heat Sink 5. Orientation Specific Luminaire 6. Cable/Chain 7. Support Structure 8. Array Target/Subfield of Illumination 9. Mechanical Orientation Mounting Device 10. Racked Aisle 11. Extender Arm 12. Rotational Disk 13. Alignment Mechanical Device Flange 14. Reflector/Refractor 15. PCB 16. Light Ray 17. Power and/or Data Conductor 18. Alignment Bolt 19. Boundaries of inclusive range 20. Adult Human 21. Emergency Egress Light Source 22. Electronic Device Housing 23. O. Sensor/Camera, transceiver 24. Lensed Optics 25. Vertical Surface Height 27. Switch 28. Indicator Light 30. Adult Human Eye Level 31. Aisle Width 32. Luminaire Spacing 33. Luminaire Spacing Mid-point 35. Nadir 36. Luminaire Mounting Height 40. Elongated Space 300. Polar Curve Diagram 310. Vertical Polar Curve 320. Horizontal Polar Curve 330. 3D Wire Frame 331. Floor directed Luminosity 332. Side directed Luminosity 341. Side Directed Beam Profile 342. Bottom directed Beam Profile 345. Light Source Position 350. Cross Emittance pattern 351. Longitudinal Emittance Pattern 360. Domed Lens 361. Lamp 362. Lamp Retaining Surface 365. Lens Structure 368. Lens Board Structure 380. Rotational Mounting Hub
(68) Obviously, numerous modifications and variations of the present disclosure are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the disclosure may be practiced otherwise than as specifically described herein.