CN106322304A - Reflector and projection lamp - Google Patents
Reflector and projection lamp Download PDFInfo
- Publication number
- CN106322304A CN106322304A CN201610841232.9A CN201610841232A CN106322304A CN 106322304 A CN106322304 A CN 106322304A CN 201610841232 A CN201610841232 A CN 201610841232A CN 106322304 A CN106322304 A CN 106322304A
- Authority
- CN
- China
- Prior art keywords
- reflective surface
- light source
- reflector
- light
- led light
- 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.)
- Pending
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Classifications
-
- 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
- F21V7/04—Optical design
-
- 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
Abstract
The invention relates to the field of illumination lamps and discloses a reflector capable of improving light-mixing effect and reducing dazzle light. The reflector comprises a light source plate and a reflecting cover, wherein the light source plate is used for mounting an LED light source; the reflecting cover is used for reflecting light emitted by the LED light source to a lighting area; the reflecting cover comprises a first reflecting curved surface, a second reflecting curved surface and a third reflecting curved surface; the light source plate is vertically fixed between the first reflecting curved surface and the second reflecting curved surface; a light source mounting position used for mounting the LED light source is arranged on the side surface of the upper end of the light source plate; the second reflecting curved surface faces one side of the light source plate with the light source mounting position; the first reflecting curved surface faces the other side of the light source plate; the third reflecting curved surface is located above the light source mounting position, so that light emitted by the LED light source and located beyond the upper edge of the second reflecting curved surface is reflected to the first reflecting curved surface. The invention also discloses a projection lamp based on the reflector. Through the reflector, the problems that the existing reflector is incapable of uniformly mixing light and generates dazzle light can be effectively solved; the light emitting efficiency of effective light is improved.
Description
Technical field
The present invention relates to field of illuminating lamps, particularly relate to a kind of reflector improving light mixing effect and based on reflector
Delineascope.
Background technology
Reflector refers to light fixture in use, and the light that can not impinge upon on work and life face sending light source is carried out
A kind of utensil of reflection, is mainly used in U-shaped or helical type energy conserving lamp, daylight lamp, street lamp, LED, Non-polarized lamp etc., reflective
Device is greatly improved the light utilization efficiency of light fixture.The reflecting rate of reflector depends primarily on material, such as reflectorized material reflecting rate, light
The quality by directly determining reflector such as decline.The shape of reflector, refers mainly to the reflection angle etc. to light, determines reflector
The disposal ability of direct light non-to light source.For Zong He, the material of reflector and shape determine the delivery efficiency of light fixture and defeated
Go out luminous flux.
Reflectorized material of the prior art and construction technology have accurate technical specification to be monitored, can be by reflector efficiency
Bringing into play completely, therefore, the design of current reflector is concentrated mainly on the design of shape to reduce light loss and to carry as far as possible
High evenness.To this end, most reflector cross sections use parabolical shape, according to theory analysis, when light source is placed in parabolical
The when of focus, light direction after reflector reflects is parallel, it is possible to form the hot spot that the uniformity is higher, but except instead
Penetrating beyond light, also direct light, the luminous flux of direct light outwards weakens from center, and particularly marginal portion light is more weak.For
Some light source such as LED light source, when multiple LED light sources are arranged on reflector formation wall lamp, the light that each LED light source sends can not
Effectively mix, form the hot spot of multiple obvious difference, reduce illuminating effect.And, reflector of the prior art, light
Source electrode is the most exposed at human eye within sweep of the eye, brings unnecessary dazzle, causes uncomfortable, the reduction eye-observation object of people
Ability.
Furthermore, the most wide variety of white light LEDs, it is mostly blue light and clashes into fluorescent material and send white light, this
White light is the mixture of blue light and gold-tinted.This type white light LEDs due in manufacturing process and structure, its accepted product percentage
Low, there is the partially yellow problem in the edge launched in light distribution, cause luminous intensity distribution difficulty, light quality is on the low side, if not the conforming to of reflector design
Reason, also can increase the weight of the problem that hot spot outer ring is partially yellow.
Summary of the invention
In view of this, it is an object of the invention to overcome the deficiencies in the prior art, it is provided that one can improve light mixing effect, subtracts
The reflector of few dazzle and delineascope based on reflector, and effectively eliminate white light LEDs Huang circle problem.
In order to solve above-mentioned technical problem, the present invention uses following scheme to realize:
A kind of reflector, including the light source board and for the luminous reflectance that sent by LED light source extremely for installing LED light source
The reflection shield of irradiated region, described reflection shield includes the first reflective surface, the second reflective surface and the 3rd reflective surface, described light source
Plate is vertically fixed between the first reflective surface and the second reflective surface and the side of its upper end is provided with for installing LED light source
Light source installation position, described second reflective surface towards being provided with the light source board side of light source installation position, described first reflective surface face
To the opposite side of light source board, described 3rd reflective surface is positioned at the top of light source installation position so that from exceeding that LED light source sends
On second reflective surface, the light along portion reflexes to the first reflective surface by the 3rd reflective surface.
When LED light source is arranged on traditional reflector, only some is just extremely irradiated by the reflected illumination of reflector
District, quite a few just not over reflector reflection and direct irradiation is gone out.The light that direct irradiation is gone out has
Shine directly into the center of hot spot, have part for expose to beyond required irradiated region.For the former, LED light source direct light
Luminous flux the most gradually weaken from center, particularly marginal portion light is more weak, and direct light is concentrated mainly on core, because of
This has been greatly reinforced the luminous flux of spot center, so will form a circle outside the hot spot irradiated and have the light of substantially boundary
, even there is outside yellow circle in circle.For the latter, expose to the light beyond irradiated region and not only create light pollution, also reduce light
Utilization rate.Therefore, the present invention solves the problems referred to above by arranging three reflective surfaces, LED light source is sent beyond
On two reflective surfaces, the light along portion reflexes to the first reflective surface by the 3rd reflective surface, then is reflexed to by the first reflective surface
Irradiated region realizes, and is ensureing in the case of the facula area that formed of light of reflector reflection is bigger, it is to avoid in hot spot
The heart is the brightest so that luminous flux distributes more uniform in whole hot spot, eliminates the dazzle formed because brightness flop amplitude is big, fills
The light that make use of LED light source to send divided.
Further, described 3rd reflective surface is positioned at the oblique upper of light source installation position.
Light source board is that vertical state is fixed between the first reflective surface and the second reflective surface, as benchmark, LED light
Source is the side being vertically fixed on light source board.Oblique upper (the i.e. LED light of light source installation position it is positioned at just because of the 3rd reflective surface
The oblique upper in source), now, LED light source center and stronger light directive the second reflective surface of center ambient light flux, by second
Reflective surface reflexes to irradiated region, and the light of remainder is reflexed to the first reflective surface by the 3rd reflective surface, more anti-by first
Light camber reflection is to irradiated region, in the process, light reflect the light mixing effect that all can improve it each time so that final directive
The hot spot brightness uniformity of irradiated region, it is to avoid the problem that spot center crosses the jaundice of bright periphery.The light of the 3rd reflective surface reflection is relative
For the light of core, its luminous flux is much smaller, and the 3rd reflective surface can be by fully reflective for this part light to first anti-
Light curved surface, therefore, even if being provided with the 3rd reflective surface to reflect light, also can reduce the loss of light, energy simultaneously to greatest extent
The light extraction efficiency making reflector is higher.Described upper end is the position of light source board upper middle, and such purpose of design is just
In the 3rd reflective surface by fully reflective to the first reflective surface for its light of directive, can guarantee that the volume of reflector will not be inclined simultaneously
Greatly.
Further, described 3rd reflective surface on upwardly extend until light that LED light source is sent upward along portion
Reflex to the lower along portion of the first reflective surface, downwardly extend along portion until by anti-beyond light along portion on the second reflective surface under it
It is incident upon the first reflective surface.
First reflective surface, the second reflective surface and the 3rd reflective surface, be the curved surface with certain radian.3rd is anti-
Upwardly extend the lowermost end of luminous reflectance to the first reflective surface along portion on light curved surface, prevent LED light source from sending upward
Light is not reflected and is emitted directly toward irradiated region.The lower of 3rd reflective surface mainly has following consideration along portion's extended distance, and one, if prolonging
Stretch apart from too short, although its equally can by its luminous reflectance of directive to the first reflective surface, but directive the second reflective surface side
To light exist for a part without the second reflective surface reflection and direct irradiation is gone out, except reducing the utilization rate of light
Outward, the problem that this part light there is likely to be light pollution；Its two, if extended distance is long, then there is a part of directive the 3rd anti-
The luminous reflectance of light curved surface is to not reflexing to the first reflective surface on light source board, thus reduces the utilization rate of light.
Further, described second reflective surface lower extend downward along portion light that LED light source is sent downwards to
Direction, irradiated region is reflected.
I.e. it can be by the reflection of direction, irradiated region for the lower light sent downwards by LED light source along portion of the second reflective surface
Light that LED light source sends downwards next-door neighbour's the 3rd reflective surface lower reflexes to irradiated region and/or by LED light source downwards along portion
The luminous reflectance sent, to the 3rd reflective surface, is reflexed to the first reflective surface by the 3rd reflective surface, then by the first reflective surface
Reflex to irradiated region.The lowermost end of light next-door neighbour's the 3rd reflective surface is reflected by lower the extending downward along portion of the second reflective surface
Going, the luminous flux of the light sent at downwards (vertical direction) due to LED light source has been greatly reduced, though now second
This part light is not reflected and does not results in the biggest waste yet by reflective surface, the extra benefit additionally brought, it is to avoid
The space that LED light source is corresponding is too small, it is simple to the flowing of air, prevents occurring that hot-spot causes LED near light source installation position
The decline in light source service life.
Further, described first reflective surface on upwardly extend until will be anti-along portion from the 3rd reflective surface along portion
The luminous reflectance penetrated is to irradiated region.The mentality of designing of the first reflective surface is consistent with the second reflective surface, along portion and lower edge on it
The length that portion extends can receive the light reflected back from the 3rd reflective surface completely and be reflexed to irradiated region, it is to avoid light
Waste.Meanwhile, also the first reflective surface, the second reflective surface, the 3rd reflective surface and light are made just because of this design
The structure of closing is avoided the formation of, it is simple to air flows, and local temperature can be avoided to greatest extent too high between source plate.
Further, by the curvature of reflective surface being adjusted the luminous intensity distribution reaching multi-form, different scene is met
Demand.Described first reflective surface and/or the second reflective surface are constituted by least two sections of curved surfaces.The hot spot of every section of camber reflection
All can effectively mix, light mixing effect can be improved further.First reflective surface and/or the second reflective surface by how much
Section curved surface constitutes and can be designed according to actual needs, such as the scene applied, the size of reflector, the demand etc. of projection
Deng.
Further, in order to form Vespertilio arc luminous intensity distribution, described second reflective surface includes left side reflective surface and right side
Portion's reflective surface, described left side reflective surface and right side reflective surface are crossed to form demarcation line and to the 3rd reflective surface one
Side highlights so that can be reflexed to irradiated region to the second direction, reflective surface both sides by the light of the second reflective surface reflection.
Further, described light source installation position is no less than one, and each light source installation position is arranged side by side.Existing energy is sent out
The LED light source going out white light generally uses two kinds of methods to be formed, and the first is to utilize blue light excitated fluorescent powder to form white light, and second
Planting is to utilize multiple monochromatic light to be mixed to form white light.For the former, prior art inevitably causes the LED light source of this type
Produce hot spot Huang circle problem；For the latter, the mixing of multiple monochromatic light is high to the requirement of each monochromatic light LED, even if with a collection of
Secondary monochromatic light, also due in technique fine distinction and cause final light mixing effect the most as expected, but also relate to every
The distance of individual LED, arrangement mode etc., produce white light hence with this mode extremely complex.And the reflector of the present invention
Realizing more preferable light mixing effect by above-mentioned technological means, the method producing white light for prior art, even if LED self exists
Flaw, reflects each time due to reflector and all there is mixed light process, thus without the radiation response that impact is final, and uses this
The reflector of invention, LED light source can closely be arranged, and reduces source gap, can show more preferable optical effect.
Further, the invention also discloses a kind of delineascope, including reflector described above, and be used for for a pair solid
Fixed first reflective surface, the second reflective surface and the stationary plane of the 3rd reflective surface sidepiece so that delineascope has a rectangle
Light outlets, described light source installation position is provided with LED light source.Delineascope described here includes but not limited to underground lamp, the slim-line lamp, road
Lamp, garden lamp, wall lamp etc..
A kind of delineascope, including reflector described above, and is used for fixing the first reflective surface, second reflective for a pair
Curved surface and the stationary plane of the 3rd reflective surface sidepiece so that delineascope has a rectangle light outlets, described light source installation position sets
Having LED light source, described first reflective surface is made up of two sections of curved surfaces, the second reflective surface is made up of four sections of curved surfaces, or described
One reflective surface is made up of one section of curved surface, the second reflective surface is made up of two sections of curved surfaces.
Compared with prior art, there is advantages that the present invention passes through vertically arranged LED light source and coordinates
The light that 3rd reflective surface makes LED light source send is mixed superposition during every secondary reflection the most uniformly, it is achieved more
Good light mixing effect so that the hot spot of formation is more uniform, the dazzle that minimizing human eye is looked at high light straight and produced, reduces outside hot spot
Invalid light so that the loss of light is down to minimum, and the problem that can be effectively improved existing white LED light source periphery gold-tinted.Logical
Cross the cooperation of three curved surfaces, can more preferable, simpler control light, adjust the curvature output of three reflective surfaces according to demand
Multiple luminous intensity distribution and multiple light distribution angle.
Accompanying drawing explanation
Fig. 1 is embodiment 1 Vespertilio arc projector lamp structure schematic diagram；
Fig. 2 is Vespertilio arc delineascope sectional structure chart in Fig. 1；
Fig. 3 is Vespertilio arc delineascope front view in Fig. 1；
Fig. 4 is that embodiment 1 Vespertilio arc projecting light radiates schematic diagram；
Fig. 5 is embodiment 1 Vespertilio arc delineascope hot spot figure；
Fig. 6 is the flat smooth delineascope sectional structure chart of embodiment 2；
Fig. 7 is that the flat smooth projecting light of embodiment 2 radiates schematic diagram；
Fig. 8 is the flat smooth delineascope hot spot figure of embodiment 2；
Fig. 9 is embodiment 3 asymmetric delineascope sectional structure chart；
Figure 10 is that the asymmetric projecting light of embodiment 3 radiates schematic diagram；
Figure 11 is embodiment 3 asymmetric delineascope hot spot figure.
Detailed description of the invention
In order to allow those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings to the present invention
It is further elaborated.
Embodiment 1
As shown in Fig. 1～5, a kind of Vespertilio arc delineascope, including for installing the light source board 500 of LED light source 600 and using
In the reflection shield of the luminous reflectance sent by LED light source 600 to irradiated region, described reflection shield includes the first reflective surface 100, second
Reflective surface 200 and the 3rd reflective surface 300, described second reflective surface includes that left side reflective surface 250 and right side are anti-
Light curved surface 260, both intersection areas are prominent to the 3rd reflective surface 300, and anti-by adjusting the first reflective surface 100, second
The curvature of light curved surface 200 and the 3rd reflective surface 300 realizes luminous intensity distribution, and a pair for fix respectively the first reflective surface 100,
Second reflective surface 200 and the stationary plane 400 of the 3rd reflective surface 300 end, it is anti-that described light source board 500 is vertically fixed on first
The side of between light curved surface 100 and the second reflective surface 200 and its upper end is provided with the light source for installing LED light source 600 and installs
Position, described light source installation position is provided with LED light source 600, and described second reflective surface 200 is towards the light source being provided with light source installation position
Plate side, described first reflective surface 100 is towards the opposite side of light source board, and described 3rd reflective surface 300 is positioned at light source and installs
The oblique upper of position so that from LED light source 600 send beyond the second reflective surface 200 along the light in portion by the 3rd reflective song
Face 300 reflexes to the first reflective surface 100, then is reflexed to irradiated region by the first reflective surface 100.
Upwardly extend until luminous reflectance that LED light source 600 is sent upward on described 3rd reflective surface 300 along portion
Lower along portion to the first reflective surface 100, downwardly extends until by beyond light along portion on the second reflective surface 200 along portion under it
Launch to the first reflective surface 100.Described second reflective surface 200 lower downwardly extends until by downward for LED light source 600 along portion
Light next-door neighbour's the 3rd the lower of reflective surface 300 that side sends reflexes to irradiated region along portion.Along portion on described first reflective surface 100
Upwardly extend until the luminous reflectance come will be reflected to irradiated region for 300 times along portion from the 3rd reflective surface.
Described first reflective surface 100 is made up of one section of curved surface.Described second reflective surface 200 is by curved surface 210 and curved surface
220 are constituted.
Embodiment 2
As can be seen from figures 6 to 8, a kind of flat smooth delineascope, including for install LED light source 600 light source board 500 and for
The luminous reflectance sent by LED light source 600 is to the reflection shield of irradiated region, and described reflection shield includes that the first reflective surface 100, second is anti-
Light curved surface 200 and the 3rd reflective surface 300, reflective by adjusting first reflective surface the 100, second reflective surface 200 and the 3rd
The curvature of curved surface 300 realizes flat smooth luminous intensity distribution, and is used for for a pair fixing first reflective surface the 100, second reflective surface 200 respectively
With the stationary plane 400 of the 3rd reflective surface 300 end, described light source board 500 is vertically fixed on the first reflective surface 100 and second
The side of between reflective surface 200 and its upper end is provided with the light source installation position for installing LED light source 600, and described light source is installed
Position is provided with LED light source 600, described second reflective surface 200 towards being provided with the light source board side of light source installation position, described first
Reflective surface 100 is positioned at the oblique upper of light source installation position towards the opposite side of light source board, described 3rd reflective surface 300 so that
First is reflexed to beyond light along portion the second reflective surface 200 by the 3rd reflective surface 300 from what LED light source 600 sent
Reflective surface 100, then reflexed to irradiated region by the first reflective surface 100.
Upwardly extend until luminous reflectance that LED light source 600 is sent upward on described 3rd reflective surface 300 along portion
Lower along portion to the first reflective surface 100, downwardly extends until by beyond light along portion on the second reflective surface 200 along portion under it
Launch to the first reflective surface 100.Described second reflective surface 200 lower downwardly extends until by downward for LED light source 600 along portion
Light next-door neighbour's the 3rd the lower of reflective surface 300 that side sends reflexes to irradiated region along portion.Along portion on described first reflective surface 100
Upwardly extend until the luminous reflectance come will be reflected to irradiated region for 300 times along portion from the 3rd reflective surface.Described first reflective surface
100 are also associated with installing plate 700, in order to the installation of delineascope.
Described first reflective surface 100 is made up of curved surface 110 and curved surface 120.Described second reflective surface 200 is by curved surface
210, curved surface 220, curved surface 230 and curved surface 240 are constituted, and four sections of curved surfaces realize more preferable light mixing effect.
Embodiment 3
As shown in Fig. 9～11, the present embodiment is similar to Example 2, and difference is, the present embodiment is reflective by adjusting first
The curvature of curved surface the 100, second reflective surface 200 and the 3rd reflective surface 300 realizes asymmetric light distribution, described first reflective surface
100 and second reflective surface 200 be one section of curved surface.
Above-described embodiment is only the wherein specific implementation of the present invention, and it describes more concrete and detailed, but can not
Therefore the restriction to the scope of the claims of the present invention it is interpreted as.It should be pointed out that, for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these obvious alternative forms are equal
Belong to protection scope of the present invention.
Claims (10)
1. a reflector, including for installing the light source board of LED light source and for the luminous reflectance extremely photograph sent by LED light source
Penetrate the reflection shield in district, it is characterised in that described reflection shield includes the first reflective surface, the second reflective surface and the 3rd reflective song
Face, described light source board is vertically fixed between the first reflective surface and the second reflective surface and the side of its upper end is provided with for pacifying
The light source installation position of dress LED light source, described second reflective surface towards being provided with the light source board side of light source installation position, described first
Reflective surface is positioned at the top of light source installation position towards the opposite side of light source board, described 3rd reflective surface so that from LED light source
Send reflexes to the first reflective surface beyond light along portion on the second reflective surface by the 3rd reflective surface.
Reflector the most according to claim 1, it is characterised in that described 3rd reflective surface is positioned at the oblique of light source installation position
Top.
Reflector the most according to claim 2, it is characterised in that upwardly extend directly along portion on described 3rd reflective surface
The luminous reflectance extremely sent upward by LED light source is lower along portion to the first reflective surface, downwardly extends along portion until will surpass under it
Go out on the second reflective surface along the luminous reflectance in portion to the first reflective surface.
Reflector the most according to claim 3, it is characterised in that described the lower of second reflective surface extends downward along portion
The light sent downwards by LED light source reflects to direction, irradiated region.
Reflector the most according to claim 4, it is characterised in that upwardly extend directly along portion on described first reflective surface
To reflecting the luminous reflectance come under the 3rd reflective surface along portion to irradiated region.
6. according to the reflector described in any one of claim 1 to 5, it is characterised in that described first reflective surface and/or second
Reflective surface is constituted by least two sections of curved surfaces.
7. according to the reflector described in any one of claim 1 to 5, it is characterised in that described second reflective surface includes left side
Portion's reflective surface and right side reflective surface, described left side reflective surface and right side reflective surface be crossed to form demarcation line and
Prominent to the 3rd reflective surface side so that the light by the second reflective surface reflection can be anti-to the second direction, reflective surface both sides
It is incident upon irradiated region.
Reflector the most according to claim 1, it is characterised in that described light source installation position is no less than one, and each light
Installation position, source is arranged side by side.
9. a delineascope, it is characterised in that include the reflector described in any one of claim 1 to 8, and be used for for a pair solid
Fixed first reflective surface, the second reflective surface and the stationary plane of the 3rd reflective surface sidepiece so that delineascope has a rectangle
Light outlets, described light source installation position is provided with LED light source.
10. a delineascope, it is characterised in that include the reflector described in any one of claim 1 to 8, and a pair is used for
Fix the first reflective surface, the second reflective surface and the stationary plane of the 3rd reflective surface sidepiece so that delineascope has a square
Shape light outlets, described light source installation position is provided with LED light source, and described first reflective surface is made up of two sections of curved surfaces, the second reflective song
Face is made up of four sections of curved surfaces, or described first reflective surface is made up of one section of curved surface, the second reflective surface is made up of two sections of curved surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610841232.9A CN106322304A (en) | 2016-09-22 | 2016-09-22 | Reflector and projection lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610841232.9A CN106322304A (en) | 2016-09-22 | 2016-09-22 | Reflector and projection lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106322304A true CN106322304A (en) | 2017-01-11 |
Family
ID=57819674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610841232.9A Pending CN106322304A (en) | 2016-09-22 | 2016-09-22 | Reflector and projection lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106322304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519754A (en) * | 2018-11-29 | 2019-03-26 | 北京和竑炅源照明技术有限公司 | A kind of adjustable LED desk lamp |
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| US20100290222A1 (en) * | 2009-05-18 | 2010-11-18 | Cree Led Lighting Solutions, Inc | Lighting device with multiple-region reflector |
| CN203671494U (en) * | 2013-11-20 | 2014-06-25 | 郝乐(上海)电子有限公司 | Anti-glare lamp capable of improving luminous efficiency |
| CN203757553U (en) * | 2014-03-18 | 2014-08-06 | 玉景科技有限公司 | Lamp structure with light controllable |
| US20140293594A1 (en) * | 2013-04-01 | 2014-10-02 | Lextar Electronics Corporation | Lamp structure |
| CN204678147U (en) * | 2015-03-25 | 2015-09-30 | 李忠凯 | LED lamp box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100290222A1 (en) * | 2009-05-18 | 2010-11-18 | Cree Led Lighting Solutions, Inc | Lighting device with multiple-region reflector |
| US20140293594A1 (en) * | 2013-04-01 | 2014-10-02 | Lextar Electronics Corporation | Lamp structure |
| CN203671494U (en) * | 2013-11-20 | 2014-06-25 | 郝乐(上海)电子有限公司 | Anti-glare lamp capable of improving luminous efficiency |
| CN203757553U (en) * | 2014-03-18 | 2014-08-06 | 玉景科技有限公司 | Lamp structure with light controllable |
| CN204678147U (en) * | 2015-03-25 | 2015-09-30 | 李忠凯 | LED lamp box |
| CN206469207U (en) * | 2016-09-22 | 2017-09-05 | 广州市胜亚灯具制造有限公司 | A kind of reflector and projecting lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519754A (en) * | 2018-11-29 | 2019-03-26 | 北京和竑炅源照明技术有限公司 | A kind of adjustable LED desk lamp |
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Application publication date: 20170111 |