CN104896346B - A kind of anti-dazzle lighting module - Google Patents
A kind of anti-dazzle lighting module Download PDFInfo
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- CN104896346B CN104896346B CN201510344474.2A CN201510344474A CN104896346B CN 104896346 B CN104896346 B CN 104896346B CN 201510344474 A CN201510344474 A CN 201510344474A CN 104896346 B CN104896346 B CN 104896346B
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- reflecting surface
- light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to field of illuminating lamps, the invention discloses a kind of anti-dazzle lighting module, including radiator, light source board, reflector and mask, the radiator is located at light source back, the reflector is located at light source board front, the light of light source to be reflected away, the mask covers light source board and reflector and fixes to form module entirety with radiator, the present invention covers light source using the sloping reflector on reflector, make to can't see light source from front, increase light-emitting area simultaneously, reduce surface brightness, reach more preferable antiglare effect；The present invention can export the rectangular light spot that the distribution curve flux with " batswing tab " type is distributed, suitable for road, the illumination of transformer station's lamp special occasions；The present invention need not realize the rectangular light spot of the distribution curve flux distribution of anti-dazzle and output with " batswing tab " type with lens cooperation, and simple in construction, consumptive material is few, and cost is low.
Description
Technical field
The present invention relates to field of illuminating lamps, more particularly to a kind of anti-dazzle and it can export there is " batswing tab " type luminous intensity distribution
The anti-dazzle lighting module of the rectangular light spot of curve distribution.
Background technology
In lighting field, LED light source have small volume, energy consumption are low, light efficiency is high, mercury-free, without ultraviolet, service life grow etc.
Many merits, it is a kind of new green light source product, necessarily the trend of future development, is widely used in various fields.
In the illumination of some special dimensions, such as road lighting, substation equipment repairing lighting etc., it is desirable to which LED light source exports
Rectangular light spot with the distribution of " batswing tab " type distribution curve flux, to improve light utilization efficiency, reduces unnecessary waste, while require have
There is anti-dazzle light effect.And what the hot spot being directly emitted by LED light source was typically round, and it is brighter among hot spot, to surrounding meeting
It is gradually dimmed, produce dazzle, therefore, it is necessary to carry out luminous intensity distribution design to LED light source, to meet requirement, it is existing it is most of all
It is to use reflex reflector with lens to coordinate to reach output to there is " batswing tab " type distribution curve flux to be distributed to carry out luminous intensity distribution design
Rectangular light spot and the requirement for having anti-dazzle, such as Chinese patent CN204153652U and CN104062694A, but this light-configuration mode
Due to using reflex reflector and lens simultaneously so that product structure is complicated, and consumptive material is more, and cost is high.
The content of the invention
Present invention aims at provide a kind of can export with " batswing tab " type distribution curve flux point to solve the above problems
The rectangular light spot of cloth and there is anti-dazzle, simple in construction, the low anti-dazzle lighting module of cost.
Therefore, the invention discloses a kind of anti-dazzle lighting module, including radiator, light source board, reflector and mask, it is described
Radiator is located at light source back, and the reflector is located at light source board front, the light of light source to be reflected away, the mask
Cover light source board and reflector and fix to form module entirety with radiator, the reflector includes some middle part reflection chambers
With some left side reflection chambers and some right side reflection chambers that are symmetricly set on its both wings, the reflection chamber bottom is provided with and allowed
The through hole that light source passes through, some middle part reflection chambers also include some middle part internal reflection cavitys and an outer lateral reflection in middle part
Cavity, the middle part internal reflection cavity are anti-by bottom plate, the first horizontal reflecting surface and the second reflecting surface and the vertical the 3rd
Penetrate face and the 4th reflecting surface encloses composition, first reflecting surface and the second reflecting surface, which tilt, to be fixed on bottom plate and mutually put down
OK, the 3rd reflecting surface and the 4th reflective symmetry are fixed on bottom plate and are more than 90 ° with the angle of cavity bottom, and described first
Reflecting surface or the second reflecting surface cover the light source through holes of the cavity bottom in the projection of cavity bottom, reflection cavity on the outside of the middle part
Body is reflected by bottom plate with the 5th reflecting surface, lateral outer side reflecting surface and the 6th vertical reflecting surface and the 7th for being fixed on bottom plate
Face encloses composition, and the 5th reflecting surface is parallel with the first reflecting surface, and the outside reflecting surface is located at the inclination of the 5th reflecting surface
Be more than 90 ° towards side and with the angle of cavity bottom, the 6th reflecting surface and the 7th reflecting surface it is symmetrical and with cavity bottom
Angle is more than 90 °, and the 5th reflecting surface covers the light source through holes of the cavity bottom in the projection of cavity bottom, and the left side is anti-
Cavity is penetrated to be enclosed and formed by bottom plate and front side reflecting surface fixed thereto, back-side face, left side reflecting surface and right side reflecting surface,
The front side reflecting surface, back-side face and the angle of left side reflecting surface and cavity bottom be more than 90 °, the right side reflecting surface with
The angle of cavity bottom is less than 90 ° and its projection in reflection chamber bottom covers the light source through holes of the cavity bottom.
Further, first reflecting surface and the angle of the 5th reflecting surface and cavity bottom are between 55 ° to 75 °, institute
The angle of the second reflecting surface and cavity bottom is stated between 105 ° to 125 °.
Further, the lower end of first reflecting surface and the 5th reflecting surface is a recessed curved portions, the second reflecting surface
Lower end is a convex curved portions, for more preferably reflecting away the light of light source.
Further, the right side reflecting surface of the left side reflection chamber and the angle of cavity bottom are between 45 ° to 60 °.
Further, the lower end of the right side reflecting surface of the left side reflection chamber is a recessed curved portions, for more preferably will
The light of light source reflects away.
Further, the left side reflecting surface of the left side reflection chamber and the angle of cavity bottom 140 ° to 160 ° it
Between.
Further, the lower end of the left side reflecting surface of the left side reflection chamber is a recessed curved portions, for more preferably will
The light of light source reflects away.
Further, the light source board is light source aluminium base, which is provided with LED.
Further, the mask is the transparent material of high transmission rate.
Further, the module also includes two water joints, and the radiator is provided with corresponding mounting hole.
The advantageous effects of the present invention：
The present invention covers light source using the sloping reflector on reflector, makes to can't see light source from front, while increase hair
Light area, surface brightness is reduced, reach more preferable anti-dazzle light effect；The present invention passes through middle part reflection chamber and left and right sides reflection chamber
Matching design can export the rectangular light spot that the distribution curve flux with " batswing tab " type is distributed, and suitable for road, transformer station's lamp is special
The illumination of occasion, the utilization rate of light is improved, reduce unnecessary waste；The present invention is without lens, simple in construction, assembling side
Just, consumptive material is few, and cost is low.
Brief description of the drawings
Fig. 1 is the exploded view of the present invention；
Fig. 2 is the reflector front view of the present invention；
Fig. 3 is the reflector rearview of the present invention；
Fig. 4 is the reflector left view of the present invention；
Fig. 5 is the reflector A-A profiles of the present invention；
Fig. 6 is the reflector B-B profiles of the present invention；
Fig. 7 is the vertical index path of reflection chamber in the middle part of the reflector of the present invention；
Fig. 8 is reflection chamber lateral light paths figure on the left of the reflector of the present invention；
Fig. 9 is the light distribution figure of the present embodiment.
Embodiment
In conjunction with the drawings and specific embodiments, the present invention is further described.
In order to which the present invention is better described, we initially set up X, Y-axis rectangular coordinate system, and X-direction is referred to as laterally Y-axis
Direction is vertical, and Fig. 2 B-B directions are located at into X-axis, and A-A directions are located at Y-axis.
As shown in figures 1 to 6, a kind of anti-dazzle lighting module, including radiator 100, light source board 200, reflector 300 and mask
400, radiator 100 is located at the back side of light source board 200, and reflector 300 is located at the front of light source board 200, the light of light source to be reflected
Go out, mask 400, which covers light source board 200 and reflector 300 and fixed with radiator 100, forms lighting module entirety, this reality
Apply in example, light source board 200 is light source aluminium base, and front is provided with LED, and LED is fixed on aluminium by the mode such as welding or being bonded
On substrate, the transparent material of 400 preferred high transmission rate of mask, such as glass, polymethyl methacrylate（PMMA）Deng mask 400
It is fixed with radiator 100 by the screw 600 with airing function, further, the module also includes 2 water joints
500, for the power line of light source board 200 to be drawn outside module, correspondingly radiator 100 is provided with two and connect for installing waterproof
First 500 mounting hole 101, in order to improve steadiness, the bottom of reflector 300 is provided with screw hole 316, for passing through screw and radiating
Device 100 and light source board 200 are fixed.
If reflector 300 include some middle part reflection chambers and be symmetricly set on its both wings some left side reflection chambers and
Dry right side reflection chamber, some middle part reflection chambers also include some middle part internal reflection cavitys and middle part outside reflection cavity
Body, in this specific implementation, internal reflection number of cavities in middle part is 2, and left side reflection chamber and right side reflection chamber quantity are all 2
Individual, in actual applications, technical staff can carry out selecting suitable quantity according to actual requirement.Each reflection chamber bottom
Provided with the through hole 301 for allowing light source to pass through, through hole 301 corresponds with the LED on light source board 200.
The planform of 2 middle part internal reflection cavitys is the same, will be illustrated below with middle part internal reflection cavity above, its
It is by bottom plate 302, lateral inclination（It is towards rear-inclined in the present embodiment, i.e., is tilted towards Y-axis forward direction side, in other embodiments
Can be towards top rake）The first reflecting surface 303 and the second reflecting surface 304 that are fixed on bottom plate 302 and are parallel to each other and vertical
It is fixed on bottom plate 302 and and cavity bottom（Bottom plate 302）Symmetrical threeth reflecting surface 305 and fourth of the angle more than 90 ° reflects
Face 306 encloses composition, on the outside of middle part reflection chamber by bottom plate 3021, be fixed on the flat with the first reflecting surface 303 of bottom plate 3021
Capable the 5th reflecting surface 307, it is fixed on bottom plate 3021 and and cavity bottom（Bottom plate 3021）Angle is anti-more than 90 ° of lateral rear
Penetrate face 308（Outside reflecting surface）And vertically it is fixed on bottom plate 3021 and and cavity bottom（Bottom plate 3021）Angle is more than 90 °
Symmetrical 6th reflecting surface 309 and the 7th reflecting surface 310 enclose composition.Wherein, throwing of first reflecting surface 303 in cavity bottom
Shadow A ' A cover the light source through holes 301 of the cavity bottom, and the 5th reflecting surface 307 covers the cavity bottom in the projection C ' C of cavity bottom
The light source through holes 301 in portion, so, light source is just can't see from front, prevents dazzle, while the first reflecting surface 303, second is anti-
Penetrate face 304, the 5th reflecting surface 307 and back-side face 308 to tilt backwards, polarisation backward can be carried out, expand light-emitting area, drop
Low surface brightness, further prevents dazzle, by adjusting angle of inclination, can control light-emitting area and polarizing angle, this implementation
In example, the first reflecting surface 303 and the angle of the 5th reflecting surface 307 and cavity bottom are preferably between 55 ° to 75 °, the second reflection
Preferably between 105 ° to 125 °, back-side face 308 and the angle of cavity bottom preferably exist the angle of face 304 and cavity bottom
Between 120 ° to 140 °.Above-mentioned is to carry out arrangement design to the vertical light of middle part reflection chamber, and this is also that middle part reflection chamber is set
Where weight calculation point, it then need to only carry out simply expanding light for the horizontal light of middle part reflection chamber, by the 3rd reflecting surface the 305, the 4th
Reflecting surface 306, the 6th reflecting surface 309 and the 7th reflecting surface 310 are realized.
Further, in order to manufacture simplicity, cost is reduced, reflection chamber is adjacent on the outside of middle part internal reflection cavity and middle part
Two horizontal reflectings surface are realized by the positive and negative of a block-shaped same reflecting plate.
The planform of 2 left side reflection chambers is the same, will be illustrated below with the left side reflection chamber on the left side, it is bottom of by
Plate 311 and 315 groups of front side reflecting surface 312 fixed thereto, back-side face 313, left side reflecting surface 314 and right side reflecting surface
Into front side reflecting surface 312, back-side face 313 and left side reflecting surface 314 and cavity bottom（Bottom plate 311）Angle is more than 90 °,
To expand light-emitting area, right side reflecting surface 315 is tilted to the left（It is less than 90 ° with cavity bottom angle）And it is in reflection chamber
Projection B ' the B of bottom cover the light source through holes 301 of the cavity bottom, as shown in fig. 6, so, just can't see light source from front, preventing
Dazzle is only produced, while left side reflecting surface 314 and right side reflecting surface 315 are tilted to the left, and can carry out polarisation to the left, expand luminous
Area, surface brightness is reduced, dazzle is further prevented, by adjusting angle of inclination, light-emitting area and polarizing angle can be controlled,
In this specific embodiment, right side reflecting surface 315 and cavity bottom angle preferably between 45 ° to 60 °, left side reflecting surface 314 with
Cavity bottom angle is preferably between 140 ° to 160 °.Above-mentioned is to carry out arrangement design to the lateral light of left side reflection chamber, this
And where the reflection chamber design focal point of left side, it then need to only carry out simply expanding light for the vertical light of left side reflection chamber, by preceding
Lateral reflection face 312 and back-side face 313 are realized.2 right side reflection chambers with 2 on the left of reflection chambers into symmetrical, this is not
Describe in detail again.
In this preferred embodiment, the back-side plate 308 of middle part reflection chamber, the back-side face of left side reflection chamber
313 and the back-side face of right side reflection chamber be linked to be a plane, the angle with cavity bottom preferably between 120 ° to 140 °,
To be easily manufactured, reduce cost, it is realized by one of reflecting surface of one piece of reflecting plate, the front side of left side reflection chamber and after
Lateral reflection face is symmetrical, and the front side and back-side face of right side reflection chamber are symmetrical, and to expand light-emitting area, it is bright to reduce surface
Degree.
Vertical light is carried out by above-mentioned middle part reflection chamber to arrange design and left side reflection chamber and right side reflection cavity
Body carries out arrangement design to lateral light, and for the present invention without coordinating with lens, its light exported just has the luminous intensity distribution of " batswing tab " type
Curve distribution, the hot spot of output is rectangular light spot, as shown in figure 9, it is applied to road, the illumination of transformer station's lamp special occasions.
Further, in order to improve the light emission rate of the present invention, and make the Luminance Distribution of hot spot evenly, middle part is reflected
The vertical light extraction of cavity further adjusts, and is specifically：The lower end of first reflecting surface 303 is designed as a recessed curved portions 3031, the
The lower end of five reflectings surface 307 is designed as a recessed curved portions 3071, and the lower end of the second reflecting surface 304 is designed as a convex curved portions
3041；Meanwhile the horizontal light extraction of left side reflection chamber is further adjusted, it is specifically：The lower end of right side reflecting surface 315 is designed as
One recessed curved portions 3151, the lower end of left side reflecting surface 314 are designed as a recessed curved portions 3141.The light extraction of right side reflection chamber
Adjustment is symmetrical with left side reflection chamber, and this is no longer described in detail.
Fig. 7 show the vertical light path schematic diagram of middle part internal reflection cavity, and the reflection chamber part in Fig. 7 is Fig. 5 circles D
The amplification of interior reflection chamber part, the light that the LED light source of middle part internal reflection cavity bottom is sent are a part of（Such as light 11）
Direct irradiation goes out reflection chamber, a part（Such as light 13）The inclined plane to the first reflecting surface 303 is irradiated, by the first reflecting surface
Cavity is irradiated after 303 inclined plane reflection, a part（Such as light 12）The inclined plane to the second reflecting surface 304 is irradiated, is passed through
Cavity, a part of light are irradiated after the inclined plane reflection of second reflecting surface 304（Such as light 14）Irradiate to the first reflecting surface 303
Recess 3031, through recess 3031 reflection after, irradiate the inclined plane to the second reflecting surface 304, then inclining through the second reflecting surface 304
Cavity is irradiated after slant reflection, is left part（Such as 15）The convex portion 3041 to the second reflecting surface 304 is irradiated, by convex portion 3041
After reflection, the inclined plane to the first reflecting surface 303 is irradiated, then chamber is irradiated after the inclined plane reflection of the first reflecting surface 303
Body, the lateral light paths of middle part internal reflection cavity are：A part of direct irradiation of light that the LED of cavity bottom is sent goes out cavity
Outside, a part is irradiated to the 3rd reflecting surface 305 and the 4th reflecting surface 306, is reflected herein, is irradiated outside cavity.Middle part
The light path of outside reflection chamber is similar with middle part internal reflection cavity, and this is no longer described in detail.
Fig. 8 show the lateral light paths schematic diagram of left side reflection chamber, and the reflection chamber part in Fig. 8 is in Fig. 6 circles E
Reflection chamber part amplification, the light part that the LED light source of left side reflection chamber bottom is sent（Such as light 21）Directly
Reflection chamber is irradiated, a part（Such as light 22）The inclined plane of reflecting surface 315 to the right is irradiated, by right side reflecting surface 315
Inclined plane reflection after irradiate cavity, a part（Such as light 23）The inclined plane of irradiation reflecting surface 314 to the left, by left side
Cavity is irradiated after the inclined plane reflection of reflecting surface 314, a part（Such as light 24）The recess of irradiation reflecting surface 314 to the left
3141, cavity is irradiated after the reflection of recess 3141, is left part（Such as light 25）Irradiate the recess of reflecting surface 315 to the right
3151, cavity is irradiated after the reflection of recess 3151, the vertical light path of left side reflection chamber is：Left side reflection chamber bottom
A part of direct irradiation of light that LED light source is sent goes out outside cavity, and a part irradiates lateral reflection face 312 and back-side face forward
313, reflected, irradiated outside cavity herein.The index path of right side reflection chamber and the index path pair of left side reflection chamber
Claim, this is no longer described in detail.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (10)
1. a kind of anti-dazzle lighting module, including radiator, light source board, reflector and mask, the radiator are located at light source backboard
Face, the reflector are located at light source board front, and the light of light source to be reflected away, the mask covers light source board and reflector
And fixed with radiator and to form module entirety, it is characterised in that：The reflector is including some middle part reflection chambers and symmetrically
Be arranged on some left side reflection chambers of its both wings and some right side reflection chambers, middle part reflection chamber, left side reflection chamber and
The bottom of right side reflection chamber is provided with and allows the through hole that light source passes through, and some middle part reflection chambers also include anti-in some middle parts
Penetrate cavity and middle part outside reflection chamber, the middle part internal reflection cavity is by bottom plate, the first horizontal reflecting surface and the
Two reflectings surface and the 3rd vertical reflecting surface and the 4th reflecting surface enclose composition, first reflecting surface and the second reflecting surface
Inclination is fixed on bottom plate and is parallel to each other, the 3rd reflecting surface and the 4th reflecting surface is symmetrically fixed on bottom plate and and cavity
The angle of bottom is more than 90 °, and first reflecting surface or the second reflecting surface cover the cavity bottom in the projection of cavity bottom
Light source through holes, on the outside of the middle part reflection chamber by bottom plate and be fixed on the 5th reflecting surface, the lateral outer side reflecting surface of bottom plate with
And the 6th vertical reflecting surface and the 7th reflecting surface enclose composition, the 5th reflecting surface is parallel with the first reflecting surface, described
Lateral outer side reflecting surface is located at the 5th reflecting surface and tilts towards side and be more than 90 ° with the angle of cavity bottom, the 6th reflection
Face and the 7th reflecting surface are symmetrical and angle with cavity bottom is more than 90 °, and the 5th reflecting surface covers in the projection of cavity bottom
The light source through holes of the cavity bottom are covered, the left side reflection chamber is by bottom plate and front side reflecting surface fixed thereto, back-side
Face, left side reflecting surface and right side reflecting surface enclose composition, the front side reflecting surface, back-side face and left side reflecting surface and cavity
The angle of bottom is more than 90 °, the angle of the right side reflecting surface and cavity bottom be less than 90 ° and its reflection chamber bottom throwing
Shadow covers the light source through holes of the cavity bottom.
2. anti-dazzle lighting module according to claim 1, it is characterised in that：First reflecting surface and the 5th reflecting surface with
The angle of cavity bottom is between 55 ° to 75 °, and the angle of second reflecting surface and cavity bottom is between 105 ° to 125 °.
3. anti-dazzle lighting module according to claim 1 or 2, it is characterised in that：First reflecting surface and the 5th reflection
The lower end in face is a recessed curved portions, and the lower end of the second reflecting surface is a convex curved portions, for more preferably reflecting the light of light source
Go out.
4. anti-dazzle lighting module according to claim 1, it is characterised in that：The right side reflecting surface of the left side reflection chamber
Angle with cavity bottom is between 45 ° to 60 °.
5. the anti-dazzle lighting module according to claim 1 or 4, it is characterised in that：The right side of the left side reflection chamber is anti-
The lower end for penetrating face is a recessed curved portions, for more preferably reflecting away the light of light source.
6. anti-dazzle lighting module according to claim 1, it is characterised in that：The left side reflecting surface of the left side reflection chamber
Angle with cavity bottom is between 140 ° to 160 °.
7. the anti-dazzle lighting module according to claim 1 or 6, it is characterised in that：The left side of the left side reflection chamber is anti-
The lower end for penetrating face is a recessed curved portions, for more preferably reflecting away the light of light source.
8. anti-dazzle lighting module according to claim 1, it is characterised in that：The light source board is light source aluminium base, thereon
Provided with LED.
9. anti-dazzle lighting module according to claim 1, it is characterised in that：The mask is the transparent material of high transmission rate
Material.
10. anti-dazzle lighting module according to claim 1, it is characterised in that：The module also includes two water joints,
The radiator is provided with corresponding mounting hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344474.2A CN104896346B (en) | 2015-06-19 | 2015-06-19 | A kind of anti-dazzle lighting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344474.2A CN104896346B (en) | 2015-06-19 | 2015-06-19 | A kind of anti-dazzle lighting module |
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| Publication Number | Publication Date |
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| CN104896346A CN104896346A (en) | 2015-09-09 |
| CN104896346B true CN104896346B (en) | 2017-11-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204785672U (en) * | 2015-06-19 | 2015-11-18 | 厦门市信达光电科技有限公司 | Anti -dazzle lighting module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818859B (en) * | 2008-01-22 | 2011-09-14 | 史杰 | Glare prevention LED lighting device of batwing type light distribution |
| CN201184572Y (en) * | 2008-01-31 | 2009-01-21 | 王品卿 | High-power LED road lamp |
| CN101749646A (en) * | 2008-12-12 | 2010-06-23 | 黄梦是 | Light emitting diode road lamp of strong reflection |
| KR200448165Y1 (en) * | 2009-07-16 | 2010-03-24 | 조경숙 | LED lamp |
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| CN204785672U (en) * | 2015-06-19 | 2015-11-18 | 厦门市信达光电科技有限公司 | Anti -dazzle lighting module |
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