GB2520344A - LED luminaire - Google Patents

LED luminaire Download PDF

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Publication number
GB2520344A
GB2520344A GB1320385.6A GB201320385A GB2520344A GB 2520344 A GB2520344 A GB 2520344A GB 201320385 A GB201320385 A GB 201320385A GB 2520344 A GB2520344 A GB 2520344A
Authority
GB
United Kingdom
Prior art keywords
light
led luminaire
transmitting
led
face
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.)
Granted
Application number
GB1320385.6A
Other versions
GB2520344B (en
GB201320385D0 (en
Inventor
Wen Tao Kuang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kosnic Lighting Ltd
Original Assignee
Kosnic Lighting Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kosnic Lighting Ltd filed Critical Kosnic Lighting Ltd
Priority to GB1320385.6A priority Critical patent/GB2520344B/en
Publication of GB201320385D0 publication Critical patent/GB201320385D0/en
Publication of GB2520344A publication Critical patent/GB2520344A/en
Application granted granted Critical
Publication of GB2520344B publication Critical patent/GB2520344B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21Y2105/00—Planar light sources
    • 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]

Abstract

An LED luminaire light face 102 comprises a non-light-transmitting surface 103 disposed between first and second light transmitting surfaces 104, 105.

Description

I F) LUMINAIRE Reid of the Invention The present invention relates to an LED luminaire, in particular to an LED lurninaire with a multi-panelled light face.
Background of the Invention
A known type of LED (light emitting diode) luminaire is a panel LED luminaire.
The LED panel luminaire has a light face that consists of a single plastic diffuser panel, which is either edge-lit or back-lit. The diffuser panel is a full width panel and of one-piece construction. Behind the diffuser panel there is a light dispersing and transmitting panel, a reflector and a heat sink.
Summary of the Invention
1 5 According to a first aspect there is provided an LED luminaire comprising a light face, wherein said light face comprises a light non-transmitting surface disposed between first and second light transmitting surfaces.
The light face may be substantially planar, or curved.
The LED luminaire may be a flat panel LED luminaire.
The LED luminaire may be adapted for use as a ceiling light, or a wall light.
According to a second aspect there is provided a method of forming a light face of an LED luminaire, said method comprising the steps of: receiving a light non-transmitting panel, receiving a pair of light transmitting panels, and arranging the light non-transmitting panel and the pair of light transmitting panels such that the light non-transmitting panel is disposed between the pair of light transmitting panels.
According to a third aspect there is provided an LED luminaire light face comprising a light non-transmitting panel disposed between a pair of light transmitting panels.
Different aspects and embodiments of the invention may be used separately or together.
1 5 Further particular and preferred aspects of the present invention are set out in the accompanying independent and dependent claims. Features of the dependent claims may be combined with the features of the independent claims as appropriate, and in combination other than those explicitly set out in the claims.
Brief Description of the Drawings
The present invention will now be more particularly described, with reference to the accompanying drawings, in which: Figure 1 is an under face view of an LED luminaire comprising a light face formed from a light-non-transmitting surface disposed between first and second light emitting surfaces; and Figure 2 is an exploded view of the LED luminaire of Figure 1.
Description
The present invention relates to an LED luminaire with a multi-panelled light face.
An LED luminaire 101 is shown in Figure 1. The LED luminaire 101 comprises a light face 102. The light face 102 comprises a light-non-transmitting surface 103 disposed between first and second light emitting surfaces 104, 105.
In this illustrated embodiment, the LED luminaire 101 is a flat panel LED lurninaire, and the light face 102 is substantially planar. According to the shown arrangement, the light face 102 comprises only a single light-non-transmitting surface 103 disposed between first and second light emitting surfaces 104, 105.
The light -non-transmitting surface 103 and the first and second light emitting surfaces 104, 105 are each surfaces of respective panels. The panels 103, 104, are surrounded by a frame 106. The panels 103, 104, 105 may be secured together to form the light face in any suitable way. Each of the panels 103, 104, may be secured to another, and may be arranged to be supported by the frame 106, using any suitable means and method.
The light face 102 may have any suitable shape, for example a square shape or a rectangular shape, and any suitable dimensions. Similarly, the frame 106 may have any suitable shape, for example a square shape or a rectangular shape, and any suitable dimensions. In an embodiment, the frame 106 has the same shape as the light face 102. The frame 106 may be used in the mounting of the LED luminaire 101 at any suitable location. The LED luminaire 101 may be used as a ceiling or wall light. The LED luminaire may be surface mounted or suspended.
The light face 102 of LED luminaire 101 has a nominal light face area A. The LED luminaire 101 with a multi-panelled light face, including a light non-transmitting surface disposed between a pair of light-transmitting surfaces, has a performance capability that is comparable to a prior art flat panel LED luminaire with a single-panelled light face having the same nominal light face area A. An exploded view of LED luminaire 101 is shown in Figure 2.
The LED luminaire 101 comprises a light non-transmitting panel 1 and a pair of diffuser panels 2 one to each side of the light non-transmitting panel 1. In this shown example, the panels 1, 2 are each elongate. The panels 1, 2 are each rectangular and the diffuser panels 2 have substantially equal dimensions.
Behind each diffuser panel 2, is a light dispersing and transmitting panel 3, then a reflector 4 and then a heat-sink 5.
The LED luminaire 101 may thus comprise first and second light transmitting surfaces each provided by a lighting set comprising a diffusing layer, a light dispersing and transmitting layer, a reflector, and a heat sink layer.
The panels 1, 2, when assembled, together form a light face having four sides.
The frame is also four-sided and comprises four side frame sections 6 and four corner fixing elements 7.
In this embodiment, the first and second light transmitting surfaces of the LED luminaire 101 are each edge-lit. As illustrated, the LED luminaire 101 comprising first and second LED strips 8, one for each of the first and second light transmitting surfaces. In the arrangement shown, the LED strips 8 are located towards opposed side frame sections 6 of the frame. The LED strips may comprise any suitable number and type of LEDs in any suitable arrangement.
In an alternative embodiment, the light face of the LED luminaire is curved. The light face may be curved in 1, 2 or 3 dimensions.
In an alternative embodiment, the light face of the LED luminaire comprises a plurality of light non-transmitting surfaces each disposed between light transmitting surfaces.
A multi-light transmitting surfaces LED luminaire is thus provided. The present invention provides LED luminaires with multiple light fransmitting surfaces with light non-transmitting surfaces in between. A flat multi-panelled LED luminaire, constructed of light and non-light-transmitting panels, capable of a performance comparable to a single flat panel LED luminaire of the same nominal face area is provided. The flat multi-panelled LED luminaire may be constructed of two or more light-transmitting panel sets separated by one or more non-light-transmitting panels. A three-dimensionally curved surface LED luminaire, constructed of light and non-light-transmitting surfaces, comparable to a single flat panel LED luminaire of the same nominal face area is also provided. The curved multi-surface LED luminaire may be constructed of two or more light-transmitting surface sets separated by one or more non-light-transmitting surfaces.
A method of forming a light face of an LED luminaire is also provided, which comprises the steps of receiving a light non-transmitting panel, receiving a pair of light transmitting panels, and arranging the light non-transmitting panel and the 1 5 pair of light transmitting panels such that the light non-transmitting pane! is disposed between the pair of light transmitting panels.
Although illustrative embodiments of the invention have been disclosed in detail herein, with reference to the accompanying drawings, it is understood that the invention is not limited to the precise embodiments shown and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope of the invention as defined by the appended claims and their equivalents. aakns

Claims (20)

1. An LED luminaire comprising a light face, wherein said light face comprises a light non-transmitting surface disposed between first and second light transmitting surfaces.
2. An LED luminaire as claimed in claim 1, wherein said light face is substantially planar.
3. An LED luminaire as claimed in claim 2, wherein said LED luminaire is a flat panel LED luminaire.
4. An LED luminaire as claimed in claim 1, wherein said light face is curved.
5. An LED luminaire as claimed in any preceding claim, wherein said each of said first and second light transmitting surfaces are provided by a lighting set comprising: a diffusing layer, a light dispersing and transmitting layer, a reflector layer, and a heat sink layer.
6. An LED luminaire as claimed in any preceding claim, wherein said light non-transmitting surface and each of said first and second light transmitting surfaces are each surfaces of respective panels.
7. An LED luminaire as claimed in claim 6, wherein each of said respective panels is elongate.
8. An LED luminaire as claimed in any preceding claim, wherein said first and second light transmitting surfaces are each edge-lit.
9. An LED luminaire as claimed in claim 8, comprising first and second LED strips, one for each of the first and second light transmitting surfaces.
10. An LED luminaire as claimed in any of claims 1 to 9, wherein said 1 5 light face comprises only a single light non-transmitting surface disposed between a pair of light transmitting surfaces.
11. An LED luminaire as claimed in any of claims 1 to 9, wherein said light face comprises a plurality of light non-transmitting surfaces each disposed between light transmitting surfaces.
12. An LED luminaire as claimed in any preceding claim, wherein said light face is one of: a rectangular shape, a square shape.
13. An LED luminaire as claimed in any preceding claim, wherein said light face is surrounded by a frame.
14. An LED luminaire as claimed in claim 13, wherein said frame has one of: a rectangular shape, a square shape.
15. An LED luminaire as claimed in any preceding claim, adapted for use as one of: a ceiling light, a wall light.
16. A method of forming a light face of an LED luminaire, said method comprising the steps of: receiving a light non-transmitting panel, receiving a pair of light transmitting panels, and arranging the light non-transmitting panel and the pair of light transmitting 1 5 panels such that the light non-transmitting panel is disposed between the pair of light transmitting panels.
17. An LED luminaire light face comprising a light non-transmitting panel disposed between a pair of light transmitting panels.
18. An LED luminaire substantially as described herein with reference to the accompanying drawings.
19. A method of forming a light face of an LED luminaire, substantially as described herein with reference to the accompanying drawings.
20. An LED luminaire light face, substantially as described herein with reference to the accompanying drawings.Amended claims have been filed as follows:-Claims 1. An LED luminaire comprising a light face, said light face comprising a light non-transmitting surface disposed between first and second light transmitting surfaces, and said first and second light transmitting surfaces are each edge-lit.2. An LED luminaire as claimed in claim 1, wherein said light face is substantially planar.3. An LED luminaire as claimed in claim 2, wherein said LED luminaire is a flat panel LED lurninaire.4. An LED luminaire as claimed in claim 1, wherein said light face is (4 curved.5. An LED luminaire as claimed in any preceding claim, wherein said each of said first and second light transmitting surfaces are provided by a lighting set comprising: a diffusing layer, a light dispersing and transmitting layer, a reflector layer, and a heat sink layer.6. An LED luminaire as claimed in any preceding claim, wherein said light non-transmitting surface and each of said first and second light transmitting surfaces are each surfaces of respective panels.7. An LED luminaire as claimed in claim 6, wherein each of said respective panels is elongate.8. An LED luminaire as claimed in any of claims 1 to 7, comprising first and second LED strips, one for each of the first and second light transmitting surfaces.9. An LED luminaire as claimed in any of claims 1 to 8, wherein said light face comprises only a single light non-transmitting surface disposed between a pair of light transmitting surfaces.10. An LED luminaire as claimed in any of claims 1 to 8, wherein said light face comprises a plurality of light non-transmitting surfaces each disposed between light transmitting surfaces.11. An LED luminaire as claimed in any preceding claim, wherein said light face is one of: a rectangular shape, a square shape.12. An LED luminaire as claimed in any preceding claim, wherein said light face is surrounded by a frame.13. An LED lurninaire as claimed in claim 12, wherein said frame has one of: a rectangular shape, a square shape.14. Use of an LED luminaire as claimed in any preceding claim, as one of: a ceiling light, a wall light.15. An LED luminaire substantially as described herein with reference to the accompanying drawings. aD (4
GB1320385.6A 2013-11-19 2013-11-19 LED luminaire Active GB2520344B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1320385.6A GB2520344B (en) 2013-11-19 2013-11-19 LED luminaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1320385.6A GB2520344B (en) 2013-11-19 2013-11-19 LED luminaire

Publications (3)

Publication Number Publication Date
GB201320385D0 GB201320385D0 (en) 2014-01-01
GB2520344A true GB2520344A (en) 2015-05-20
GB2520344B GB2520344B (en) 2015-10-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10302274B2 (en) 2015-06-16 2019-05-28 Signify Holding B.V. Luminaire, modular surface covering arrangement and luminaire kit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012158894A2 (en) * 2011-05-17 2012-11-22 Pixi Lighting Llc Flat panel lighting device and driving circuitry
US20130083514A1 (en) * 2011-07-22 2013-04-04 Led House Sdn Bhd Lighting assembly for ceiling board

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012158894A2 (en) * 2011-05-17 2012-11-22 Pixi Lighting Llc Flat panel lighting device and driving circuitry
US20130083514A1 (en) * 2011-07-22 2013-04-04 Led House Sdn Bhd Lighting assembly for ceiling board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10302274B2 (en) 2015-06-16 2019-05-28 Signify Holding B.V. Luminaire, modular surface covering arrangement and luminaire kit

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Publication number Publication date
GB2520344B (en) 2015-10-14
GB201320385D0 (en) 2014-01-01

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