CN102213369A - Light emitting diode (LED) lamp - Google Patents
Light emitting diode (LED) lamp Download PDFInfo
- Publication number
- CN102213369A CN102213369A CN2010101598527A CN201010159852A CN102213369A CN 102213369 A CN102213369 A CN 102213369A CN 2010101598527 A CN2010101598527 A CN 2010101598527A CN 201010159852 A CN201010159852 A CN 201010159852A CN 102213369 A CN102213369 A CN 102213369A
- Authority
- CN
- China
- Prior art keywords
- light
- reflector
- led lamp
- emitting component
- type lens
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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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
- 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
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
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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
- 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
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
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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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
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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
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
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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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention provides a light emitting diode (LED) lamp. The lamp comprises a radiating component, a reflector, a light emitting component and a side-emitting type lens, wherein the reflector is provided with an opening; the light emitting component is arranged between the radiating component and the reflector and the opening is exposed out of the light emitting component; the side-emitting type lens passes through the opening so as to be positioned in the reflector; the light emitting component is arranged between the side-emitting type lens and the radiating component; and the light emitted by the light emitting component is reflected outside the reflector after being projected onto the reflector by adopting the side-emitting type lens to change the light path.
Description
Technical field
The relevant a kind of led lamp of the present invention, and particularly about the different led lamp of a kind of and existing light fixture.
Background technology
(Light Emitting Diode is a kind of small solid-state (Solid-State) light source LED) to light emitting diode, compares with traditional incandescent lamp bulb and fluorescent lamp, and light emitting diode can have a plurality of, multiple combination.In addition, single light emitting diode has the light conversion efficiency height, power consumption is little, vibration strength is high and damage after the recyclable advantage such as environmental protection characteristic that has concurrently of discarded object, therefore light emitting diode is generally good by industry, can become big potentiality commodity that substitute the traditional lighting utensil.
Summary of the invention
But the led lamp that the purpose of this invention is to provide the different uniformly light-emitting of a kind of and existing light fixture.
The present invention proposes a kind of led lamp, comprises a heat dissipation element, a reflector, a light-emitting component and Quartering shot type lens, and reflector has an opening.Light-emitting component is disposed between heat dissipation element and the reflector, and opening exposes light-emitting component.The Quartering shot type lens pass opening being positioned at reflector, and light-emitting component is between Quartering shot type lens and heat dissipation element, after wherein the light that sends of self-emission device changes its light path and is projected to reflector by the Quartering shot type lens, reflex to outside the reflector again.
In an embodiment of led lamp of the present invention, above-mentioned heat dissipation element comprises a heat radiator body and a plurality of radiating fin, wherein heat radiator body is bowl-shape, and radiating fin is arranged on the heat radiator body radially, and heat radiator body has a plurality of hollow-out parts.
In an embodiment of led lamp of the present invention, above-mentioned light-emitting component comprises a light emitting diode and a circuit board, and wherein light emitting diode is disposed on the circuit board, and the part of circuit board is folded between heat radiator body and the reflector.
In an embodiment of led lamp of the present invention, above-mentioned Quartering shot type lens comprise a lens body and a reflecting layer, wherein lens body has a reflecting surface and around an exiting surface of reflecting surface, and reflecting surface is a curved surface, and the reflecting layer is arranged at reflecting surface, and the light that projects of the light-emitting component layer reflection back that is reflected is penetrated from exiting surface.
In an embodiment of led lamp of the present invention, also has a gap between above-mentioned light-emitting component and the Quartering shot type lens.
In an embodiment of led lamp of the present invention, above-mentioned reflector has one first location structure, and the Quartering shot type lens have one second location structure, and the shape complementarity of first location structure and second location structure.
In an embodiment of led lamp of the present invention, also comprise a plurality of locking parts, and locking part passes light-emitting component and locks heat dissipation element.
In an embodiment of led lamp of the present invention, also comprise a plurality of locking parts, and locking part passes heat dissipation element and locks reflector.
The useful technique effect that the present invention compares with the light fixture of conventional bulb kenel is: led lamp of the present invention uses light emitting diode as light source, and arranges in pairs or groups with the Quartering shot type lens, can make led lamp reach the effect of uniformly light-emitting.
Description of drawings
For above-mentioned feature and advantage of the present invention can be become apparent, below in conjunction with accompanying drawing preferred embodiment of the present invention is elaborated, wherein:
Fig. 1 is the exploded perspective view of a kind of led lamp of one embodiment of the invention.
Fig. 2 is the schematic diagram at another visual angle of the led lamp of Fig. 1.
Fig. 3 is the schematic diagram of the distribution of generalized section after the led lamp assembling of Fig. 1 and corresponding luminous intensity and angle.
Fig. 4 is the part section enlarged diagram of the led lamp of another embodiment.
The specific embodiment
Fig. 1 is the exploded perspective view of a kind of led lamp of one embodiment of the invention, and Fig. 2 is the schematic diagram at another visual angle of the led lamp of Fig. 1.Please also refer to Fig. 1 and Fig. 2, led lamp 100 comprises a heat dissipation element 110, a reflector 120, a light-emitting component 130 and Quartering shot type lens 140.Heat dissipation element 110 comprises a heat radiator body 112 and a plurality of radiating fin 114, and wherein heat radiator body 112 roughly is bowl-shape, and radiating fin 114 is arranged on the heat radiator body 112 radially.The heat radiator body 112 and the radiating fin 114 of present embodiment can be formed in one, and perhaps radiating fin 114 also can be to be assembled on the heat radiator body 112.In addition, heat radiator body 112 and radiating fin 114 can have a plurality of hollow-out parts 116, to alleviate the overall weight of heat dissipation element 110.
The shape of the heat radiator body 112 of the shape of reflector 120 and heat dissipation element 110 is similar, also roughly is bowl-shape, so that reflector 120 can be superimposed mutually to fit together with heat dissipation element 110.The central part of reflector 120 has an opening 122, and reflector 120 also has the inner surface 124 around opening 122.
Fig. 3 is the generalized section after the led lamp assembling of Fig. 1 and the schematic diagram of corresponding light intensity distributions thereof.Please also refer to Fig. 1, Fig. 2 and Fig. 3, light-emitting component 130 comprises a light emitting diode 132 and a circuit board 134, wherein light emitting diode 132 is disposed on the circuit board 134, and the edge part of circuit board 134 is folded between heat radiator body 112 and the reflector 120, and opening 122 exposes the light emitting diode 132 of light-emitting component 130.
Hold above-mentioned, Quartering shot type lens 140 covers are overlying on the light-emitting component 130, and most Quartering shot type lens 140 pass opening 122 to be positioned at reflector 120, and in other words, the circuit board 134 of light-emitting component 130 is between the heat radiator body 112 of Quartering shot type lens 140 and heat dissipation element 110.Specifically, Quartering shot type lens 140 comprise a lens body 142 and a reflecting layer 144, and wherein lens body 142 has a reflecting surface 142a and around the exiting surface 142b of reflecting surface 142a, and reflecting layer 144 is arranged at reflecting surface 142a.The reflecting surface 142a of present embodiment is outstanding cambered surface, and in other embodiments, reflecting surface 142a also can be the cambered surface of depression, selects for use according to demand, and its degree outstanding or depression can be through the calculating of designer's precision.
Please continue with reference to figure 1 and Fig. 2, when desire with 100 groups of whole led lamps immediately, can earlier light-emitting component 130 be placed the heat radiator body 112 of the heat dissipation element 110 that is bowl-shape.Wherein led lamp 100 also comprises a plurality of locking parts 150, and the circuit board 134 of light-emitting component 130 has a plurality of locking hole 134a, and locking part 150 pass light-emitting component 130 circuit board 134 locking hole 134a and lock the heat radiator body 112 of heat dissipation element 110 so that light-emitting component 130 and heat dissipation element 110 relative fixed.The U type hole of the locking hole 134a of the circuit board 134 of present embodiment for offering from circuit board 134 edges, in other embodiments, locking hole 134a also can be the perforate from the inside setting of circuit board 134, and this perforate is not connected with the edge of circuit board 134, and wherein the shape of perforate can change according to demand.
At the same time, Quartering shot type lens 140 and reflector 120 can be fitted together.Subsidiary one carry be, the reflector 120 of present embodiment has one first location structure 126, and the bottom of Quartering shot type lens 140 is provided with one second location structure 146, wherein first location structure 126 is a concave point, and second location structure 146 is a salient point, so that Quartering shot type lens 140 when fitting together with reflector 120, by being first location structure 126 of concave point and locating for second location structure 146 of salient point, prevent assembly defect.In present embodiment, first location structure 126 and second location structure 146 be shaped as complementation, but in other embodiments, the shape and the form of first location structure 126 and second location structure 146 can change according to actual demand.
Afterwards, reflector 120 and heat dissipation element 110 are superimposed together, and locking part 150 are passed heat dissipation element 110 lock reflector 120, so that reflector 120 is fixed together with heat dissipation element 110.
Compared to the bulb type light fixture of general common use bulb as light source, the led lamp 100 of present embodiment is to use light emitting diode 132 as light source, different with the configuration of conventional lights alveolitoid light fixture, and satisfied brightness can be provided, promote the energy saving effect significantly.
Then please refer to Fig. 3, when the led lamp 100 of present embodiment begins effect, the light emitting diode 132 of light-emitting component 130 is luminous, its light enters the lens body 142 of Quartering shot type lens 140 afterwards by after 144 reflections of reflecting layer, reflects away from the exiting surface 142b that is positioned at lens body 142 sides again.Light just can produce primary mixed light by reflecting layer 144 reflex times in lens body 142.Afterwards, penetrate the light of lens body 142,, can penetrate outside the lens body 142 with bigger refraction angle so penetrate the light of lens body 142, and be incident upon on the inner surface 124 of reflector 120 owing to be to enter thin medium (air) from close medium (solid).
What must illustrate is, the inner surface 124 of reflector 120 is not to be slick and sly and continuous arc curve on the cross section, but discontinuous and sectional curve or straight line, wherein the folded angle of each section curve or straight line and a virtual horizontal line V is to get by accurate Calculation, purpose is to make the light from lens body 142 outgoing, is projected on the inner surface 124 to penetrate outside the led lamp 100 by correcting and with the direction perpendicular to horizontal line V.Certainly, after the exiting surface 142b of rays pass through lens body 142 sides penetrates, and even, can carry out mixed light once more by be reflected inner surface 124 correctings of cover 120 of the light of lens body 142 outgoing.
Specifically, led lamp 100 has used Quartering shot type lens 140, so the light that the light emitting diode 132 of light-emitting component 130 sends can be from the exiting surface 142b outgoing of the side of the lens body 142 that is positioned at Quartering shot type lens 140, light can concentrate on both sides earlier, shown in the distribution schematic diagram of the luminous intensity of Fig. 3 and angle, and just having higher luminous intensity spike (peak) near positive and negative 80 degree places.So, pass through the correcting of reflector 120 again after, light will be by collimationization effectively.Therefore, for user's impression visually, the luminous intensity of led lamp 100 evenly distributes.In other words, the reflecting layer 144 of Quartering shot type lens 140 make effectively light from the exiting surface 142b outgoing that is positioned at lens body 142 sides and within reflector 120 even mixed light, the led lamp 100 of present embodiment does not have light and directly penetrates the reflecting surface 142a of lens body 142 and outgoing, and and then cause the central part luminous intensity of led lamp 100 stronger, and the dizzy phenomenon of the inhomogeneous caused Huang of periphery.
Specifically, also have a clearance G between light-emitting component 130 and the Quartering shot type lens 140, this gap G is formed jointly by lens body 142, light emitting diode 132 and circuit board 134.The existence of clearance G makes light-emitting component 130 and Quartering shot type lens 140 more simple easily in contraposition and number of assembling steps.In addition, can insert joint glue 160, so that Quartering shot type lens 140 can be fastened to each other with light-emitting component 130 in clearance G.What is more, can also in joint glue 160, pour into diffusion particle 162,, show as Fig. 4 more to promote the effect of mixed light.
In sum, led lamp of the present invention has the different configuration of bulb type light fixture more in the past, and the brightness that is provided and energy saving effect also the bulb type light fixture was good more in the past.In addition, the use of Quartering shot type lens allows led lamp uniformly light-emitting on a large scale, avoids yellow dizzy phenomenon.Moreover, the existence in gap, light-emitting component and Quartering shot type lens have the advantage of contraposition of being easy to and assembling.
Though the present invention discloses as above with embodiment; yet it is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can making all changes that is equal to or replacement, so protection scope of the present invention is when looking accompanying being as the criterion that the application's claim scope defined.
Claims (10)
1. led lamp comprises:
One heat dissipation element;
One reflector has an opening;
One light-emitting component be disposed between this heat dissipation element and this reflector, and this opening exposes this light-emitting component; And
One Quartering shot type lens, this light-emitting component is between these Quartering shot type lens and this heat dissipation element, and these Quartering shot type lens pass this opening to be positioned at this reflector, wherein after the light that this light-emitting component sends changes its light path by these Quartering shot type lens and is projected to this reflector, reflex to again outside this reflector.
2. led lamp according to claim 1 is characterized in that, this heat dissipation element comprises:
One heat radiator body; And
A plurality of radiating fins are provided with on this body radially, and wherein this body has a plurality of hollow-out parts.
3. led lamp according to claim 2 is characterized in that this heat radiator body is bowl-shape.
4. led lamp according to claim 1 is characterized in that, this light-emitting component comprises:
One light emitting diode; And
One circuit board, wherein this light emitting diode is disposed on this circuit board, and the part of this circuit board is folded between this heat radiator body and this reflector.
5. led lamp according to claim 1 is characterized in that, these Quartering shot type lens comprise:
One lens body has a reflecting surface and around an exiting surface of this reflecting surface; And
One reflecting layer is arranged at this reflecting surface, and the light that this light-emitting component projects penetrates from this exiting surface after by this reflective layer reflects.
6. led lamp according to claim 5 is characterized in that, this reflecting surface is a curved surface.
7. led lamp according to claim 1 is characterized in that, also has a gap between this light-emitting component and this Quartering shot type lens.
8. led lamp according to claim 1 is characterized in that, this reflector has one first location structure, and these Quartering shot type lens have one second location structure, and the shape complementarity of this first location structure and this second location structure.
9. led lamp according to claim 1 is characterized in that, also comprises a plurality of locking parts, and these locking parts pass this light-emitting component and lock this heat dissipation element.
10. led lamp according to claim 1 is characterized in that, also comprises a plurality of locking parts, and these locking parts pass this heat dissipation element and lock this reflector.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101598527A CN102213369A (en) | 2010-04-02 | 2010-04-02 | Light emitting diode (LED) lamp |
| PCT/CN2011/072205 WO2011120410A1 (en) | 2010-04-02 | 2011-03-28 | Led lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101598527A CN102213369A (en) | 2010-04-02 | 2010-04-02 | Light emitting diode (LED) lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102213369A true CN102213369A (en) | 2011-10-12 |
Family
ID=44711360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101598527A Pending CN102213369A (en) | 2010-04-02 | 2010-04-02 | Light emitting diode (LED) lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102213369A (en) |
| WO (1) | WO2011120410A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169776A (en) * | 2012-01-10 | 2014-11-26 | 奥罗拉有限公司 | Improved optical systems and LED luminaires |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10883701B2 (en) | 2016-08-30 | 2021-01-05 | Opple Lighting Co., Ltd. | LED lighting device |
| EP3492802B1 (en) * | 2016-08-30 | 2023-03-01 | Opple Lighting Co., Ltd. | Led lighting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854770A (en) * | 2005-04-26 | 2006-11-01 | Lg电子株式会社 | Optical lens, light emitting device package using the optical lens, and backlight unit |
| CN201003739Y (en) * | 2007-02-09 | 2008-01-09 | 鸿坤科技股份有限公司 | LED lamp |
| CN201377694Y (en) * | 2009-04-17 | 2010-01-06 | 张文周 | LED illumination equipment with radiating structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775467Y (en) * | 2005-01-10 | 2006-04-26 | 游木金 | Lamp shade structure |
| CN201047878Y (en) * | 2007-02-06 | 2008-04-16 | 深圳市中电淼浩固体光源有限公司 | Spreading lens for LED light source |
| EP1970620A1 (en) * | 2007-03-14 | 2008-09-17 | Koninklijke Philips Electronics N.V. | Illumination device |
| CN201149203Y (en) * | 2007-07-19 | 2008-11-12 | 亿光电子工业股份有限公司 | Side projection type LED |
| CN101398144A (en) * | 2007-09-26 | 2009-04-01 | 东捷科技股份有限公司 | LED illuminating device |
| CN101655213A (en) * | 2008-08-21 | 2010-02-24 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode light source module |
| CN101649996A (en) * | 2009-06-30 | 2010-02-17 | 王默文 | Straight lighting fixture |
-
2010
- 2010-04-02 CN CN2010101598527A patent/CN102213369A/en active Pending
-
2011
- 2011-03-28 WO PCT/CN2011/072205 patent/WO2011120410A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854770A (en) * | 2005-04-26 | 2006-11-01 | Lg电子株式会社 | Optical lens, light emitting device package using the optical lens, and backlight unit |
| CN201003739Y (en) * | 2007-02-09 | 2008-01-09 | 鸿坤科技股份有限公司 | LED lamp |
| CN201377694Y (en) * | 2009-04-17 | 2010-01-06 | 张文周 | LED illumination equipment with radiating structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169776A (en) * | 2012-01-10 | 2014-11-26 | 奥罗拉有限公司 | Improved optical systems and LED luminaires |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011120410A1 (en) | 2011-10-06 |
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Application publication date: 20111012 |