CN104373841A - LED lighting device - Google Patents
LED lighting device Download PDFInfo
- Publication number
- CN104373841A CN104373841A CN201410605717.9A CN201410605717A CN104373841A CN 104373841 A CN104373841 A CN 104373841A CN 201410605717 A CN201410605717 A CN 201410605717A CN 104373841 A CN104373841 A CN 104373841A
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- China
- Prior art keywords
- led light
- diffuser
- light device
- led
- color temperature
- 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
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
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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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
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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
- F21Y2101/00—Point-like light sources
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to an LED lighting device which comprises a base, an LED lamp panel fixedly arranged on the base, one or more LED light sources arranged on the LED lamp panel to form a light-emitting area, and a light transmitting cover arranged above the LED lamp panel in a non-contact mode. The LED lighting device further comprises a light transmitting cover support which is fixedly arranged on the base, and a knob, wherein the light transmitting cover is movably arranged on the light transmitting cover support, one end of the knob is provided with a gear, and the gear is arranged between the light transmitting cover and the light transmitting cover support.
Description
The divisional application that the present invention is original applying number is 201210586728.8, original application day is on December 30th, 2012, former denomination of invention is the LED light device of adjustable color temperature.
Technical field
The present invention relates to field of LED illumination, particularly relate to a kind of LED light device.
Background technology
Along with living standard constantly improves, people are no longer satisfied with single lighting system, the abundant and innervation of lighting colour just progressively pursue by people.The light source of different-colour can build different luminous environment effect and photochromic, thus gives people with different mental impressions.By a large amount of comparative study, low colour temperature, to a kind of warmth of people, comfortable, classical sensation, is relatively applicable to the one side of perception, such as chat etc.; Middle colour temperature to people be a kind of salubrious, swash sensation that is clear, fashion, be applicable to reading, dining etc.; High color temperature is a kind of pure, pure and fresh, lucid and lively sensation strictly to people, and relatively suitableeer rational one side, such as, work, manage household affairs.
The colour temperature of conventional incandescent or electricity-saving lamp is all fixing, and the colour temperature of usual incandescent lamp is all fixed on about 2700K, and electricity-saving lamp colour temperature is relatively enriched, such as, have the fixed values such as 3000K, 4000K, 6400K.But the colour temperature of these conventional light source is all fixed value, shapingly just cannot regulates change once manufacture, generally can only carry out light modulation by brightness regulation, and the change of flexible modulation colour temperature and color as required cannot be accomplished.
Current, LED light source is used widely due to the advantage of its energy-conserving and environment-protective.In addition, be can Based Intelligent Control for the sharpest edges of LED light source.Such as, compared with conventional light source, LED light source can either regulate brightness, can also realize the adjustment of colour temperature and color.
But the LED light source equipment of prior art exists number of drawbacks, modal is that light colour temperature and color can not realize automatic adjustment, needs manually to change, wastes time and energy.Although or basic realization regulates automatically, adjustment structure is very complicated, complex manufacturing, material and processing cost high, easily cause light source fault rate high, quality is unstable.
Therefore, need to improve the colour temperature of existing LED light source and the regulation mechanism of color, a kind of LED light source that automatically can regulate colour temperature and color is provided, there is simple adjustment structure, be easy to manufacture and use, and be convenient to user and regulate the colour temperature that emits beam of light source and color easily according to the actual requirements.
Summary of the invention
The object of this invention is to provide a kind of LED light device, the colour temperature making user to regulate LED light device to emit beam easily, obtains the illuminating effect of needs.
According to an aspect of the present invention, provide a kind of LED light device, comprising: pedestal; LED lamp panel, is fixedly installed on pedestal; One or more LED light source, it is arranged in described LED lamp panel to form light-emitting zone; Diffuser, is arranged on the top of described LED lamp panel non-contactly, the colour temperature of the light sent for regulating described LED light source; Diffuser support, it is fixedly installed on described pedestal, and described diffuser is movably arranged on described diffuser support; Knob, one end is provided with gear, this gear is arranged between described diffuser and described diffuser support, wherein, described diffuser and described diffuser support be all provided with the engaging tooth with described gears meshing in the position with described Gear Contact, make the rotation of described knob that described diffuser can be driven to move linearly relative to described LED lamp panel.
Preferably, described diffuser support comprises the draw-in groove installing described diffuser for activity.
Preferably, described LED lamp panel is provided with the lighttight wall that is in the light around described one or more LED light source, for limiting described light-emitting zone.
Preferably, described diffuser is provided with a two or more color temperature regions, regulates for the color temperature value realizing more than at least two kinds.
Preferably, diffuser is provided with lighttight shading limit along the girth of each described color temperature regions.
Preferably, the fluorescent material for obtaining different-colour value is set in adjacent described color temperature regions.
Preferably, each described color temperature regions is formed as covering the light-emitting zone corresponding with it.
Preferably, the shape of each described color temperature regions is roughly mated with the shape of described light-emitting zone or is coincide.
Preferably, described multiple color temperature regions is formed as the longitudinal continuous distributed along diffuser and has the rectangular area of same shape.
Preferably, the wall that is in the light described in the height of wall of being in the light described in is formed as making fits to the shading limit of described diffuser.
Preferably, described LED light source is ruddiness, blue light, green glow, purple light or white LED light source.
As mentioned above, LED light device of the present invention is by fixing LED light source, then by the position relative to LED light source rectilinear movement diffuser, same light source is made to realize the change of colour temperature through the diffuser in different-colour region, thus to realize the function that can regulate arbitrarily colour temperature.
By implementing the present invention, can making user just can conversion between practical function illumination easily and sight illumination when without the need to dismantling light fixture, meeting psychological in people's productive life and physiological lighting demand.
In addition, LED light device of the present invention is simple and reliable for structure, easy to use, has the advantage that production cost is low, reliability is high.
Accompanying drawing explanation
Fig. 1 shows a kind of colour temperature adjustment structure of LED light device in prior art;
Fig. 2 shows the another kind of colour temperature adjustment structure of LED light device in prior art;
Fig. 3 shows the colour temperature adjustment structure of LED light device of the present invention;
Fig. 4 shows the three-dimensional cutaway view of the colour temperature adjustment structure of LED light device of the present invention;
Fig. 5 shows the structural representation of the LED lamp panel of LED light device of the present invention; And
Fig. 6 shows the structural representation of the diffuser of LED light device of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with detailed description of the invention also with reference to accompanying drawing, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.
Structural representation according to the embodiment of the present invention shown in the drawings.These figure not draw in proportion, wherein for purposes of clarity, are exaggerated some details, and may eliminate some details.Various regions shown in figure, component shape and the relative size between them, position relationship are only exemplary, in reality may due to manufacturing tolerance or technology restriction deviation to some extent, and those skilled in the art can design the region/parts with difformity, size, relative position in addition needed for actual.
Fig. 1 shows a kind of colour temperature adjustment structure of LED light device in prior art.
In the colour temperature adjustment structure of the prior art shown in Fig. 1, the main scheme adopting control circui to regulate colour temperature.
As shown in Figure 1, LED light device comprises LED light source 500, drive circuit 400, diffuser 600 and heat sink assembly 100,200 and 300.Wherein, LED light source 500 is made up of the light source of two kinds of different-colours, is connected respectively to different drive circuits 400.Drive circuit 400 is electrically connected to LED light source 500, luminous for driving LED light source 500.Diffuser 600 is arranged on the luminous route of LED light source 500, disperses for making uniform light.Heat sink assembly comprises fin 100, heat pipe 200 and absorber plate 300, for absorbing the heat of the generation of LED light source 500, and is distributed heat in air by fin 100, heat pipe 200.
Be provided with two cover drive circuits 400 in the structure shown here, for warming up light source power supply respectively to LED cold light source and LED, often organized the drive current size of light source by control circui, thus control the intensity often organizing light source igniting, produce the combined light source of different-colour, realize the object that colour temperature regulates.
This structure is actually employing two and overlaps independently light source and circuit drives system, and the consumption of LED light source is the twice of non-dimming arrangement.In production practices, can be highdensity staggered at a certain distance by multiple LED light sources of different-colour, there is the LED light source of half do not do work or do not do work completely at work, cause the wasting of resources.In addition, the design of this resolution circuitry is complicated, complex production process, material and processing cost high.Further, once there is dead lamp situation, there will be the phenomenon that whole group of light source does not work, thus the problem causing colour temperature uneven.
Fig. 2 shows the another kind of colour temperature adjustment structure of LED light device in prior art.
In the colour temperature adjustment structure shown in Fig. 2, mainly comprise LED light source 10 and light transmission piece 20.This light transmission piece 20 is coated with colour temperature transition material, and it is arranged on the light emission direction of LED light source 10, and the light that LED light source 10 is sent passes light transmission piece 20 and produces colour temperature change, thus reaches the object of light regulating colour temperature.
In such an embodiment, multiple diffuser with different-colour fluorescent material is set usually in lighting device, by manually changing the adjustment that different diffusers realizes colour temperature.Although this scheme cost is lower, need the fluorescent material lampshade preparing various different-colour in actual applications, the application keeping for lampshade itself is cumbersome.And in actual illumination place, because the problem of safety and the instrument of replacing, do not allow consumer to carry out spot replace.Simultaneously because consider the convertibility of lampshade, fitting structure design will inevitably consider detachability, thus has influence on the barrier propterty of light fixture.
Fig. 3 shows the colour temperature adjustment structure of LED light device of the present invention.Fig. 4 shows the three-dimensional cutaway view of the colour temperature adjustment structure of LED light device of the present invention.
As shown in figure 3 or 4, LED light device of the present invention comprises the parts such as pedestal 1, LED lamp panel 2, one or more LED light source 3, diffuser 4, diffuser support 5, knob 6.
Pedestal 1 is for carrying the miscellaneous part of lighting device.In embodiments of the invention, pedestal 1 is preferably fixed in the shell (not shown) of lighting device, and is provided with installation component on the back side of pedestal 1, for lighting device is connected to outside installation site.
LED lamp panel 2 is fixedly installed on pedestal 1, is provided with the one or more LED light sources 3 for the formation of light-emitting zone.Diffuser 4 is arranged on the top of described LED lamp panel 2 non-contactly, the colour temperature of the light sent for regulating described LED light source 3.Diffuser support 5 is fixedly installed on described pedestal 1, described diffuser support 5 each side comprise a draw-in groove 8,8 ', thus described diffuser 4 to be arranged on described diffuser support 5 actively.In the present invention, diffuser support 5 has the shape being adapted to diffuser 4, such as, be rectangle.
An end of knob 6 is provided with gear 7, this gear 7 is arranged between described diffuser 4 and described diffuser support 5, wherein, described diffuser 4 is all provided with in the position contacted with described gear 7 engaging tooth engaged with described gear 7 with described diffuser support 5, makes the rotation of described knob 6 that described diffuser 4 can be driven to move linearly relative to described LED lamp panel 2.The other end of described knob 6 is provided with rotary handle, is convenient to user operation knob 6 and rotates.Operate for the convenience of the user, this rotary handle is arranged on the hull outside of LED light device usually.
Fig. 5 shows the structural representation of the LED lamp panel of LED light device of the present invention.
As shown in Figure 4 and Figure 5, LED lamp panel 2 is fixedly installed on the front of pedestal 1, is preferably formed to rectangle.
One or more LED light source 3 is arranged in LED lamp panel 2, and it is connected with power supply by LED pad 9, and forms the light-emitting zone 202 of LED light device.In the present invention, LED light source can adopt the LED light source of the multiple colors such as ruddiness, blue light, green glow, purple light or white light, can select flexibly in actual production.
In embodiments of the invention, preferably around described one or more LED light source 3, the lighttight wall 201 that is in the light is set, for limiting light-emitting zone 202 in LED lamp panel 2.One or more LED light source 3 is arranged in the light-emitting zone 202 limited by the wall 201 that is in the light, thus the light blocked in this light-emitting zone is irradiated to other color temperature regions, causes light leak or mixed light.
The wall 201 that is in the light adopts light-proof material to form, the function that having shuts out the light passes through.Preferably, the height of the wall 201 that is in the light can be formed as make it fit to the shading limit 403 of diffuser hereinafter described, avoid causing light leak or astigmatism, thus obtain the best effect that is in the light.
Fig. 6 shows the structural representation of the diffuser of LED light device of the present invention.
See Fig. 3 and Fig. 6, diffuser 4 is arranged on the top of LED lamp panel 2 non-contactly, is namely arranged in the direction of advance of LED light source 3 emission of light, for the colour temperature regulating LED light source 3 to emit beam.Diffuser 4 is formed as rectangle, can be planar structure or globoidal structure, and its profile can be set to match with the profile of LED lamp panel 2.
It should be noted, the LED light source in the present invention adopts contactless encapsulation.Specifically, diffuser 4 is set between LED lamp panel 2 spaced apart, and LED chip is separated with fluorescent material, and the impact of heat on fluorescent material that LED chip produces is less, and the stability of fluorescent material is higher, longer service life.
With reference to figure 3, diffuser 4 comprises transmitting substrate 401 and fluorescent material 402.Transmitting substrate 401 can be the materials such as glass, plastics, resin, rubber or silica gel.Fluorescent material 402 applies or evaporation forms film on the surface of transmitting substrate 401, and fluorescent material 402 by multiple fluorescent substance being combined to form according to different proportion, thus can reach different colour temperature adjustment desired values.
As shown in Figure 6, diffuser 4 is provided with a two or more color temperature regions 404, regulates for the colour temperature realizing more than at least two kinds.Specifically, diffuser 4 is divided into along the continuously arranged multiple color temperature regions 404 of longitudinal direction as Fig. 6 by multiple shading limits 403 that diffuser 4 is arranged, the fluorescent material of identical or different color temperature value is provided with in each described color temperature regions 404, when relative to LED lamp panel 2 along in figure vertically move diffuser 4 time, different color temperature regions 404 can be made to cover on the top of light-emitting zone 202, thus regulate the colour temperature by the light of this color temperature regions.Preferably, the fluorescent material of different-colour value is set in every two adjacent color temperature regions 404.
In an embodiment of the present invention, described color temperature regions 404 is formed as covering corresponding light-emitting zone 202.Preferably, the shape of color temperature regions 404 is formed as roughly mating with the shape of light-emitting zone 202 or coincideing, to guarantee that the light that light-emitting zone 202 sends can all by corresponding color temperature regions 404.Preferably, the multiple color temperature regions 404 on diffuser 4 are formed as continuous distributed and have the rectangular area of same shape, and accordingly, light-emitting zone 202 is also formed as the rectangular area with each color temperature regions 404 with same shape.In addition, according to the needs of embody rule, color temperature regions 404 and light-emitting zone 202 can be set to other various shape.
Such as, in the embodiment shown in fig. 6, multiple rectangle color temperature regions 404 being shown, being provided with the fluorescent material for obtaining different-colour in each color temperature regions 404, the plurality of color temperature value such as such as 3000k, 4500k, 6000k.On the other hand, the light-emitting zone 202 in LED lamp panel 2 is also formed as rectangular area, thus roughly mates with the shape of each rectangle color temperature regions 404 on diffuser 4.
In said structure, shading limit 403 adopts light-proof material to form, the function that having shuts out the light passes through, and causes the mixed light between different-colour region for blocking the light scattering in the color temperature regions of place to the color temperature regions on side.
As mentioned above, LED light device of the present invention, by being fixed by LED light source, then by regulating the position of diffuser, makes same light source realize the change of colour temperature through the diffuser in different-colour region, thus to realize the function that colour temperature can regulate arbitrarily.
By implementing the present invention, LED light source can be made to carry out conversion between functional lighting and sight illumination easily, meet psychology and physiological lighting demand in people's productive life.Compared with the light modulation mechanism of prior art, LED light device of the present invention has following advantage:
(1) use single light source, quantity is few, and the cost of raw material is low; Circuit design is simple, and welding cost is low.
(2), in prior art, the light decay of LED light source is cause because of the decay of fluorescent material to a great extent.Packaged light source of the present invention adopts contactless encapsulation, and LED chip is separated with fluorescent material, and the impact of heat on fluorescent material that LED chip produces is less, and the stability of fluorescent material is higher, longer service life.
(3) colour temperature is easy to adjust, can carry out the adjustment of colour temperature without the need to dismantling lampshade, simple to operate; Be conducive to the protection of lamp interior element.
Should be understood that, above-mentioned detailed description of the invention of the present invention only for exemplary illustration or explain principle of the present invention, and is not construed as limiting the invention.Therefore, any amendment made when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and modification.
Claims (10)
1. a LED light device, comprising:
Pedestal (1);
LED lamp panel (2), is fixedly installed on pedestal (1);
One or more LED light source (3), it is arranged in described LED lamp panel (2) to form light-emitting zone (202);
Diffuser (4), is arranged on the top of described LED lamp panel (2) non-contactly;
It is characterized in that, described LED light device also comprises:
Diffuser support (5), it is fixedly installed on described pedestal (1), and described diffuser (4) is movably arranged on described diffuser support (5);
Knob (6), one end is provided with gear (7), and this gear (7) is arranged between described diffuser (4) and described diffuser support (5).
2. LED light device according to claim 1, is characterized in that, described diffuser support (5) comprises the draw-in groove (8,8 ') installing described diffuser (4) for activity.
3. LED light device according to claim 1 and 2, it is characterized in that, described LED lamp panel (2) is provided with the lighttight wall that is in the light (201) around described one or more LED light source (3), for limiting described light-emitting zone (202)
Described diffuser (4) is provided with a two or more color temperature regions (404), regulates for the color temperature value realizing more than at least two kinds.
4. LED light device according to claim 3, is characterized in that, described diffuser (4) is provided with lighttight shading limit (403) along the girth of each described color temperature regions (404),
The wall (201) that is in the light described in the height of the described wall that is in the light (201) is formed as making fits to the shading limit (403) of described diffuser (4).
5. LED light device according to claim 3, is characterized in that, arranges the fluorescent material for obtaining different-colour value in adjacent described color temperature regions (404),
Described diffuser (4) comprises the transmitting substrate (401) be made up of glass, plastics, rubber or silica gel and the film formed on the surface of described transmitting substrate (401) by coating or evaporation by described fluorescent material.
6. LED light device according to claim 3, is characterized in that, each described color temperature regions (404) is formed as covering the light-emitting zone (202) corresponding with it.
7. LED light device according to claim 3, is characterized in that, the shape of each described color temperature regions (404) is roughly mated with the shape of described light-emitting zone (202) or coincide.
8. LED light device according to claim 3, is characterized in that, a described two or more color temperature regions (404) is formed as the longitudinal continuous distributed along described diffuser (4) and has the rectangular area of same shape.
9. LED light device according to claim 1, it is characterized in that, described pedestal (1) is fixed on the shell of described LED light device, and on the back side of described pedestal (1), be provided with mounting structure, for described LED light device is connected to outside installation site.
10. LED light device according to claim 1, is characterized in that, the other end of described knob (6) is provided with rotary handle, and described rotary handle is arranged at the outside of the shell of described LED light device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605717.9A CN104373841B (en) | 2012-12-30 | 2012-12-30 | A kind of LED light device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605717.9A CN104373841B (en) | 2012-12-30 | 2012-12-30 | A kind of LED light device |
| CN201210586728.8A CN103047573B (en) | 2012-12-30 | 2012-12-30 | Color-temperature-adjustable LED illuminating device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210586728.8A Division CN103047573B (en) | 2012-12-30 | 2012-12-30 | Color-temperature-adjustable LED illuminating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373841A true CN104373841A (en) | 2015-02-25 |
| CN104373841B CN104373841B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410605717.9A Expired - Fee Related CN104373841B (en) | 2012-12-30 | 2012-12-30 | A kind of LED light device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373841B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080074279A1 (en) * | 2006-09-15 | 2008-03-27 | Idealite Optoelectronics Inc. | Rotating flashing warning signal lamp |
| JP2009245712A (en) * | 2008-03-31 | 2009-10-22 | Stanley Electric Co Ltd | Illumination fixture |
| CN101737722A (en) * | 2008-11-25 | 2010-06-16 | 富士迈半导体精密工业（上海）有限公司 | Illuminating device |
| CN102691904A (en) * | 2012-04-24 | 2012-09-26 | 厦门阳光恩耐照明有限公司 | Light emitting device with adjustable color temperature and color rendering index and lamp provided with light emitting device |
-
2012
- 2012-12-30 CN CN201410605717.9A patent/CN104373841B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080074279A1 (en) * | 2006-09-15 | 2008-03-27 | Idealite Optoelectronics Inc. | Rotating flashing warning signal lamp |
| JP2009245712A (en) * | 2008-03-31 | 2009-10-22 | Stanley Electric Co Ltd | Illumination fixture |
| CN101737722A (en) * | 2008-11-25 | 2010-06-16 | 富士迈半导体精密工业（上海）有限公司 | Illuminating device |
| CN102691904A (en) * | 2012-04-24 | 2012-09-26 | 厦门阳光恩耐照明有限公司 | Light emitting device with adjustable color temperature and color rendering index and lamp provided with light emitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104373841B (en) | 2016-08-24 |
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