EP2993386A1 - Auditorium LED light system - Google Patents
Auditorium LED light system Download PDFInfo
- Publication number
- EP2993386A1 EP2993386A1 EP15159756.4A EP15159756A EP2993386A1 EP 2993386 A1 EP2993386 A1 EP 2993386A1 EP 15159756 A EP15159756 A EP 15159756A EP 2993386 A1 EP2993386 A1 EP 2993386A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- led modules
- high intensity
- auditorium
- led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
- F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/407—Lighting for industrial, commercial, recreational or military use for indoor arenas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Definitions
- the subject disclosure relates to electrical lighting systems and more particularly to a lighting system employing LED light fixtures to illuminate an auditorium or similar venue.
- Incandescent lighting systems for illuminating theatres, auditoriums and the like have been used in the past.
- An illustrative auditorium lighting system embodiment comprises a plurality of LED light fixtures mounted in a ceiling of an auditorium, each fixture including a plurality of LED modules.
- a power control system for supplying power to the LED modules is positioned in an area separate from the seating area of the auditorium.
- each LED light fixture includes an extrusion which carries a plurality of LED modules including one or more ambience light LED modules for providing ambient light and one or more high intensity LED modules for providing full level lighting.
- the high intensity light provided by the high intensity LED modules is achieved by employing high output LED's (>100 Lumens each) in combination with optics producing a light beam having a full width half maximum angle of 12 degrees or 35 degrees.
- the power control system is configured to collectively switch the one or more ambience light LED modules “on” and “off” and to separately and collectively switch the one or more high intensity LED modules “on” and “off” to thereby selectively provide either low level ambient light or high intensity full level lighting to the auditorium.
- the power control system may further provide dimming of all or selected ones of the modules by means of phase or low voltage dimming.
- the low level lighting is used during intermission periods and the high intensity lighting is used during cleaning periods.
- FIGs. 1 and 2 An auditorium lighting system 11 according to an illustrative embodiment is shown in Figs. 1 and 2 . It should be understood that as used here, the term “auditorium” encompasses theaters such as conventional "movie” theaters.
- the lighting system 11 employs a plurality of light fixtures 13 installed in or attached to a ceiling 15 above a floor 21. These light fixtures 13 can be installed at regular or irregular spacing intervals so as to achieve uniform illumination of the floor 21, which typically slopes downwardly in a multi-level, "stadium style" arrangement and on which a number of seats are positioned, typically separated by one or more aisles. In other applications, the floor 21 may be flat.
- the junction box 16 may be positioned elsewhere in the projection booth 18 in various embodiments or in another easy-to-access location, such as, for example, above a T-bar grid at the cross aisles.
- the junction box 16 may include controls, dimmers, surge protection, emergency back-up equipment and supplies electrical power to the light fixtures 13, as well as dimming capability.
- Fig. 2 schematically illustrates the power feeds 23 to the fixtures 13 from the junction box 16 as three dashed lines. Remote positioning of the power system as illustrated in Figs. 1 and 2 makes wiring, dimming, and maintenance easier to manage.
- the fixture 13 includes an elongated extrusion 29, which provides a mounting surface or surfaces 30 for a plurality of LED modules 31, 33, 35, 37, 39, 41.
- the extrusion 29 further has respective junction boxes 43, 45 and horizontal flanges 47, 49; 51, 53 at each end.
- the junction or "splice" boxes 43, 45 provide faster and easier wiring, while the flanges 47, 49; 51, 53 assist in mounting the fixtures 13 to cooperate with adjacent ceiling tile.
- Fig. 6 illustrates the manner in which the flanges 47, 49; 51, 53 accommodate ceiling tile 81 in one illustrative embodiment.
- the pairs of LED modules 31,33; 39,41 at opposite ends of the extrusion 13 may be high intensity modules, which provide light for periods of cleaning or other maintenance.
- the lighting system 11 employs high intensity modules, e.g., 31, 33 which are angled to the horizontal at an acute angle ⁇ of, for example, 20° (degrees) and are aimed in opposing directions in order to increase the spread of light, thereby necessitating fewer fixtures in some embodiments.
- lenses or optics, e.g., 91 are employed in each high intensity module 31, 33 to produce a relatively intense light beam having, for example, a full width half maximum angle of 12 degrees.
- the center LED modules 35, 37 are ambient lighting modules configured to provide ambient light to illuminate the theater or auditorium, for example, during intermission periods.
- Other componentry shown in Figs. 4 and 5 includes the fixture housing extrusion 61, a bottom cover 78, a printed circuit board assembly ("PCBA") carrier 79, a PCBA carrier retention screw 75, a plastic dome lens 77, splice box 69 and splice box retention tab 67, electrical connector body 65, and ceiling tile flange 63.
- the extrusion 61 may be an aluminum extrusion and the bottom cover 78 may be die cast aluminum.
- the extrusion 61 and bottom cover 78 may be constructed as illustrated in U.S. Patent Publication 2013/0279180 A1 published October 24, 2013 , the contents of which are incorporated in their entirety herein.
- Each LED module 31, 33, 35, 37, 39, 41 may comprise a circuit board with one or more LED emitters mounted thereon.
- the high intensity modules 31,33; 39, 41 employ 3 emitters e.g. 40, while the ambience modules 35, 37 employ 11 emitters.
- each emitter of the ambience modules may have an output of 40 lumens at a full width half maximum angle of 120°.
- the LED modules 31, 33, 35, 37, 39, 41 are configured in pairs and each may be six inches in length positioned in an extrusion 29 which is 42 inches in length, together with two splice boxes 69, resulting in a total fixture length of 473 ⁇ 4".
- Another embodiment may employ an eighteen inch long extrusion having three LED modules, together with two splice boxes 69, resulting in a total fixture length of 233 ⁇ 4".
- such an embodiment may employ one central ambience LED module, flanked on either side by a high intensity LED module where the high intensity LED modules are angled at 20 degrees to the horizontal and oppositely directed..
- the relatively dim ambient intermission lighting may provide 2-4 foot candles of total light, while the full level, high intensity "cleaning" light modules may provide 6-9 foot candles of total light.
- the light delivered by the modules may be adjusted based upon the ceiling height at the location where a particular fixture 13 is positioned.
- the ambience modules 35, 37 may be collectively switched “on” or “off” at the same time, and the high intensity modules 31, 33; 39, 41 may also be collectively switched “on” or “off” at the same time.
- each module 31,33,39,41 is powered “on” and provides high intensity illumination.
- each ambience modules 35, 37 is powered “on” and provides ambient illumination.
- the ambience module 35, 37 are collectively switched or turned “on”, while the high intensity modules 31, 33; 39, 41 are held or switched “off” and vice versa. In a dark state of the auditorium, all of the modules 31, 33, 35, 37, 39, 41 are in the "off” state.
- Fig. 7 illustrates an attachment eyelet 51 on splice box 43 for attaching a fixture 13 by fasteners, e.g. 52, to a cooperating ceiling grid structure 84. Fixtures 13 may also be suspended by wires which terminate at structural elements of the building above the ceiling grid or by other mechanisms.
- Fig. 7 further illustrates electrical power cable 85 and cable sheath 87 held in place by a clamp 87. Two-circuit wiring may be provided to enable individual on-off and dimming control of the high intensity modules 31, 33; 39, 41 and the ambient lighting modules 35, 37.
- junction boxes 43, 45 may permit lead wires from the power supply to be connected by simply “poking” them in, and one fixture can be readily electrically interconnected to the next ("daisy chained").
- splice box lids e.g. 82
- fasteners e.g. 83.
- Low voltage or line voltage embodiments can be constructed in accordance with the above teachings.
Abstract
Description
- The subject application is a continuation-in-part of and claims priority to
U.S. patent application serial number 14/330,409 filed July 14, 2014 - The subject disclosure relates to electrical lighting systems and more particularly to a lighting system employing LED light fixtures to illuminate an auditorium or similar venue.
- Incandescent lighting systems for illuminating theatres, auditoriums and the like have been used in the past.
- An illustrative auditorium lighting system embodiment comprises a plurality of LED light fixtures mounted in a ceiling of an auditorium, each fixture including a plurality of LED modules. In one embodiment, a power control system for supplying power to the LED modules is positioned in an area separate from the seating area of the auditorium.
- In one embodiment, each LED light fixture includes an extrusion which carries a plurality of LED modules including one or more ambience light LED modules for providing ambient light and one or more high intensity LED modules for providing full level lighting. In one embodiment, the high intensity light provided by the high intensity LED modules is achieved by employing high output LED's (>100 Lumens each) in combination with optics producing a light beam having a full width half maximum angle of 12 degrees or 35 degrees.
- In one embodiment, the power control system is configured to collectively switch the one or more ambience light LED modules "on" and "off" and to separately and collectively switch the one or more high intensity LED modules "on" and "off" to thereby selectively provide either low level ambient light or high intensity full level lighting to the auditorium. The power control system may further provide dimming of all or selected ones of the modules by means of phase or low voltage dimming.
- In one embodiment, the low level lighting is used during intermission periods and the high intensity lighting is used during cleaning periods.
-
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Fig. 1 is a side schematic view illustrating an auditorium lighting system according to an illustrative embodiment; -
Fig. 2 is a perspective view of the lighting system ofFig. 1 ; -
Fig. 3 is a perspective view of a lighting fixture employable in the system ofFig. 2 ; -
Fig. 4 is a first cross-sectional view of the fixture taken at IV-IV ofFig. 3 ; -
Fig. 5 is a second cross-sectional view of the fixture taken at V-V ofFig. 3 ; -
Fig. 6 is a detail view illustrating cooperation of the fixture ofFig. 3 with adjacent sealing tile; and -
Fig. 7 is a perspective end view showing an illustrative installation of the fixture ofFig. 3 . - An
auditorium lighting system 11 according to an illustrative embodiment is shown inFigs. 1 and 2 . It should be understood that as used here, the term "auditorium" encompasses theaters such as conventional "movie" theaters. - The
lighting system 11 employs a plurality oflight fixtures 13 installed in or attached to aceiling 15 above afloor 21. Theselight fixtures 13 can be installed at regular or irregular spacing intervals so as to achieve uniform illumination of thefloor 21, which typically slopes downwardly in a multi-level, "stadium style" arrangement and on which a number of seats are positioned, typically separated by one or more aisles. In other applications, thefloor 21 may be flat. - A
junction box 16 containing a plurality of LED drivers, for example, three drivers, is shown attached to the frontinterior wall 17 of aprojection booth 18. Thejunction box 16 may be positioned elsewhere in theprojection booth 18 in various embodiments or in another easy-to-access location, such as, for example, above a T-bar grid at the cross aisles. Thejunction box 16 may include controls, dimmers, surge protection, emergency back-up equipment and supplies electrical power to thelight fixtures 13, as well as dimming capability. -
Fig. 2 schematically illustrates thepower feeds 23 to thefixtures 13 from thejunction box 16 as three dashed lines. Remote positioning of the power system as illustrated inFigs. 1 and 2 makes wiring, dimming, and maintenance easier to manage. - An
illustrative light fixture 13 is shown inFig. 3 . Thefixture 13 includes anelongated extrusion 29, which provides a mounting surface orsurfaces 30 for a plurality ofLED modules extrusion 29 further hasrespective junction boxes horizontal flanges boxes flanges fixtures 13 to cooperate with adjacent ceiling tile.Fig. 6 illustrates the manner in which theflanges ceiling tile 81 in one illustrative embodiment. - The pairs of
LED modules extrusion 13 may be high intensity modules, which provide light for periods of cleaning or other maintenance. As illustrated inFigs. 4 and 5 , thelighting system 11 employs high intensity modules, e.g., 31, 33 which are angled to the horizontal at an acute angle θ of, for example, 20° (degrees) and are aimed in opposing directions in order to increase the spread of light, thereby necessitating fewer fixtures in some embodiments. In addition, lenses or optics, e.g., 91, are employed in eachhigh intensity module - Additionally, the
center LED modules Figs. 4 and 5 includes thefixture housing extrusion 61, abottom cover 78, a printed circuit board assembly ("PCBA")carrier 79, a PCBAcarrier retention screw 75, aplastic dome lens 77,splice box 69 and splicebox retention tab 67,electrical connector body 65, andceiling tile flange 63. In one embodiment, theextrusion 61 may be an aluminum extrusion and thebottom cover 78 may be die cast aluminum. In one embodiment, theextrusion 61 andbottom cover 78 may be constructed as illustrated inU.S. Patent Publication 2013/0279180 A1 published October 24, 2013 , the contents of which are incorporated in their entirety herein. - Each
LED module high intensity modules ambience modules - The
LED modules extrusion 29 which is 42 inches in length, together with twosplice boxes 69, resulting in a total fixture length of 47¾". Another embodiment may employ an eighteen inch long extrusion having three LED modules, together with twosplice boxes 69, resulting in a total fixture length of 23¾". For example, such an embodiment may employ one central ambience LED module, flanked on either side by a high intensity LED module where the high intensity LED modules are angled at 20 degrees to the horizontal and oppositely directed.. In one embodiment, the relatively dim ambient intermission lighting may provide 2-4 foot candles of total light, while the full level, high intensity "cleaning" light modules may provide 6-9 foot candles of total light. In various embodiments, the light delivered by the modules may be adjusted based upon the ceiling height at the location where aparticular fixture 13 is positioned. - The
ambience modules high intensity modules module ambience modules ambience modules ambience module high intensity modules modules -
Fig. 7 illustrates anattachment eyelet 51 onsplice box 43 for attaching afixture 13 by fasteners, e.g. 52, to a cooperatingceiling grid structure 84.Fixtures 13 may also be suspended by wires which terminate at structural elements of the building above the ceiling grid or by other mechanisms.Fig. 7 further illustrateselectrical power cable 85 andcable sheath 87 held in place by aclamp 87. Two-circuit wiring may be provided to enable individual on-off and dimming control of thehigh intensity modules ambient lighting modules junction boxes - Thus, those skilled in the art will appreciate that various adaptations and modifications of the just described preferred embodiment can be configured without departing from the scope and spirit of the invention. Therefore, it is to be understood that, within the scope of the appended claims, the invention may be practiced other than as specifically described herein.
Claims (14)
- An auditorium lighting system comprising:a plurality of LED light fixtures located in a ceiling of the auditorium, each said light fixture comprising a plurality of LED modules;a power control system;wherein each LED light fixture comprises a fixture body mounting each of said plurality of LED modules and;wherein the plurality of LED modules comprise:one or more high intensity light LED modules located at opposite ends of said extrusion; andone or more ambience LED modules for providing ambient lighting; andwherein said power control system is configured to collectively switch said one or more ambience light LED modules "on" and "off" and to separately and collectively switch said one or more high intensity LED modules "on" and "off" to thereby provide either low level ambient light or high intensity full level lighting to said auditorium.
- The auditorium lighting system of claim 1, wherein said low level ambient lighting is used during an intermission period and said high intensity lighting is used during a cleaning period of said auditorium.
- The auditorium lighting system of claim 1 or 2, wherein at least one of said one or more ambience LED modules is configured to be dimmable.
- The auditorium lighting system of any of claims 1 to 3, wherein at least one of said one or more high intensity light LED modules is configured to be dimmable.
- The auditorium lighting system of any of claims 1 to 4, wherein a pair of said high intensity light LED modules are angled so as to direct light in opposite directions.
- The auditorium lighting system of any of claims 1 to 6, wherein a first of said high intensity light LED modules directs light at an angle of 20 degrees to the horizontal; while a second of said high intensity light LED modules directs light at an angle of 20 degrees to the horizontal in a direction opposite to that at which said first high intensity light LED module directs light.
- The auditorium lighting system of any of claims 1 to 6, wherein one or more of said high intensity LED modules is configured to produce a light beam having a full width half maximum angle in the range of 12 to 35 degrees.
- The auditorium lighting system of any of claims 1 to 7, wherein said ambience LED modules provide 2 to 4 foot candles of light and said high intensity light LED modules provide 6 to 9 foot candles of light.
- The auditorium lighting system of any of claims 1 to 8, wherein said power control system is positioned in an area separate from the plurality of LED light fixtures.
- An electric lighting fixture comprising:a fixture body mounting a plurality of LED modules, the plurality of LED modules comprising:at least first and second high intensity light LED modules, one positioned at each opposite end of said fixture body; andat least one ambience light LED module positioned between said first and second high intensity light LED modules.
- The electric lighting fixture of claim 10 wherein said first and second LED modules are configured to provide high intensity light suitable for illuminating an auditorium for cleaning.
- The electric lighting fixture of claim 10 or 11 wherein said at least one ambience LED module is configured to provide low level light suitable for use during intermission periods.
- The electric lighting fixture of any of claims 10 to 12 further comprising a pair of high intensity light LED modules angled so as to direct light in opposite directions.
- The electric lighting fixture of any of claims 10 to 13, wherein a first of said high intensity light LED modules directs light at an angle of 20 degrees to the horizontal; while a second of said high intensity light LED modules directs light at an angle of 20 degrees to the horizontal in a direction opposite to that at which said first high intensity light LED module directs light.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/330,409 US20160014868A1 (en) | 2014-07-14 | 2014-07-14 | LED Auditorium House Light System |
US14/445,609 US9596740B2 (en) | 2014-07-14 | 2014-07-29 | LED auditorium house light system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2993386A1 true EP2993386A1 (en) | 2016-03-09 |
EP2993386B1 EP2993386B1 (en) | 2017-10-18 |
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ID=53039666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15159756.4A Active EP2993386B1 (en) | 2014-07-14 | 2015-03-18 | Auditorium led light system |
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Country | Link |
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EP (1) | EP2993386B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011139764A2 (en) * | 2010-04-27 | 2011-11-10 | Cooper Technologies Company | Linkable linear light emitting diode system |
WO2012129243A1 (en) * | 2011-03-21 | 2012-09-27 | Digital Lumens Incorporated | Methods, apparatus and systems for providing occupancy-based variable lighting |
US20130279180A1 (en) | 2012-04-23 | 2013-10-24 | Dennis Pearson | Commercial Lighting Integrated Platform |
-
2015
- 2015-03-18 EP EP15159756.4A patent/EP2993386B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011139764A2 (en) * | 2010-04-27 | 2011-11-10 | Cooper Technologies Company | Linkable linear light emitting diode system |
WO2012129243A1 (en) * | 2011-03-21 | 2012-09-27 | Digital Lumens Incorporated | Methods, apparatus and systems for providing occupancy-based variable lighting |
US20130279180A1 (en) | 2012-04-23 | 2013-10-24 | Dennis Pearson | Commercial Lighting Integrated Platform |
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Publication number | Publication date |
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EP2993386B1 (en) | 2017-10-18 |
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