CN206234626U - A kind of ultra-thin area source LED surface mounted lights - Google Patents
A kind of ultra-thin area source LED surface mounted lights Download PDFInfo
- Publication number
- CN206234626U CN206234626U CN201621050046.5U CN201621050046U CN206234626U CN 206234626 U CN206234626 U CN 206234626U CN 201621050046 U CN201621050046 U CN 201621050046U CN 206234626 U CN206234626 U CN 206234626U
- Authority
- CN
- China
- Prior art keywords
- light
- guide plate
- surface mounted
- light guide
- ultra
- 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.)
- Active
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000002834 transmittance Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 6
- ZMHWQAHZKUPENF-UHFFFAOYSA-N 1,2-dichloro-3-(4-chlorophenyl)benzene Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC(Cl)=C1Cl ZMHWQAHZKUPENF-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A kind of ultra-thin area source LED surface mounted lights, it includes a lamp bracket, a light source module, a reflectance coating, a light guide plate, and one layer of light guiding points.The lamp bracket is for a disc and including a bottom and a side wall.The ultimate range of the two LEDs chips end to end of the light source module is 2/3rds of described perimeter side wall.The reflectance coating is diffusing reflection reflective sheeting.The edge of the light guide plate position relative with each LED chip is provided with a spreading grooves.The spreading grooves are that the bottom of a V-arrangement and the V-arrangement is circular arc.The light guiding points include multiple spaced round spots, and the area of the round spot accounts for the 60% of the gross area of the light guide plate.The ultra-thin area source LED surface mounted lights ratio shared in lamp bracket by designing the light source module, the structure of the light guide plate and the shape of light guiding points and shared ratio, and the setting of reflectance coating, such that it is able to obtain an area source LED surface mounted light both thin and that light efficiency is best, consequently, it is possible to meeting the demand of user.
Description
Technical field
The utility model is related to a kind of lighting apparatus, particularly a kind of ultra-thin area source LED surface mounted lights.
Background technology
In general daily life, all visible various lighting apparatus everywhere, for example, fluorescent lamp, street lamp, desk lamp, art
Lamp etc..In above-mentioned lighting apparatus, traditionally major part is as illuminating source with osram lamp.In recent years, due to science and technology
Make rapid progress, by the use of light emitting diode (LED) as light sources.Notably, in addition to lighting apparatus, for general traffic number
Will, billboard, car light etc., are also changed to use light emitting diode as illuminating source.As it was previously stated, being made using light emitting diode
It is illuminating source, it is advantageous in that power saving, and brightness is bigger, therefore in the upper gradually generalization of use.
With the popularization of LED lamp, increasing occasion begins to use LED lamp.For increasingly commonly used.It is right
In increasingly commonly used various forms of LED surface mounted lights, it typically has two requirements, and one is thin, and two is area source.
Utility model content
In view of this, it is necessary to which ultra-thin area source LED surface mounted lights a kind of both thin and for area source are provided, it is above-mentioned to meet
Demand.
A kind of ultra-thin area source LED surface mounted lights, it includes a lamp bracket, a light source die being arranged in the lamp bracket
Group, a reflectance coating being arranged on the lamp bracket, a light guide plate being arranged in the lamp bracket, and one layer be arranged on institute
The light guiding points stated on light guide plate and be located between the reflectance coating and light guide plate.The lamp bracket is for a disc and including a bottom
Portion and a side wall extended out from the bottom.The light source module is in bar shaped and including plurality of LEDs chip.The light source die
Side wall of the light direction of group perpendicular to the lamp bracket.The ultimate range of the two LEDs chips end to end of the light source module is institute
2/3rds of the perimeter side wall stated.The reflectance coating is diffusing reflection reflective sheeting and is arranged on the bottom of the lamp bracket.It is described to lead
The edge of the tabula rasa position relative with each LED chip is provided with a spreading grooves.The spreading grooves are a V-arrangement and the V-arrangement
Bottom be circular arc.The light guide plate include the incident wall of emergent light for receiving the light source module and one be used for it is anti-
Penetrate the reflecting wall of light.The length of the incident wall is suitable with the ultimate range of the two LEDs chips end to end of light source module.It is described
Reflector layer is provided with reflecting wall.The light guiding points include multiple spaced round spots, and the area of the round spot accounts for described leading
The 60% of the gross area of tabula rasa.
Further, the area source surface mounted light also includes a lamp being arranged on the light direction of the light guide plate
Cover.
Further, the edge of the lampshade includes a circle light shield layer, the radial width of the light shield layer.
Further, the light transmittance of the lampshade is 100%.
Further, the light source module is also arranged on the flexible PCB including a flexible PCB and
Heat conduction bar, the multiple LED chip is separately positioned on the flexible PCB with the heat conduction bar.
Further, the flexible PCB is provided with the side of the multiple LED chip and is coated with white reflection ink.
Further, the thickness of the light guide plate is suitable with the width of LED chip or maximum gauge.
Further, the lamp bracket includes an interrupted stop part for extending from the base, and two are respectively used to
Card sets the staggeredly blocking part at the two ends of the light source module, and the stop part is close to set with the reflecting wall of light guide plate, the light
Source module be arranged on it is described two staggeredly between blocking parts, the light guide plate support the stop part and staggeredly blocking part it
Between.
Further, the sidewall spacers of the stop part and lamp bracket are set, the lamp bracket also include at least one with it is interrupted
Stop part the relative wire top in space, the wire top extends out from the side wall.
Compared with prior art, the circular ultra-thin area source LED surface mounted lights utilize side principle of luminosity, described by design
The shared ratio in lamp bracket of light source module, the structure of the light guide plate and the shape of light guiding points and shared ratio, and
The setting of reflectance coating, such that it is able to obtain an area source LED surface mounted light both thin and that light efficiency is best, consequently, it is possible to meeting user
Demand.
Brief description of the drawings
Below in conjunction with Description of Drawings embodiment of the present utility model, wherein：
The decomposition texture schematic diagram of a kind of ultra-thin area source LED surface mounted lights that Fig. 1 is provided for the utility model.
Fig. 2 is the cross-sectional view of the ultra-thin area source LED surface mounted lights of Fig. 1.
The structural representation of the light guide plate that Fig. 3 is had by the ultra-thin area source LED surface mounted lights of Fig. 1.
Specific embodiment
Specific embodiment of the utility model is further elaborated below based on accompanying drawing.It should be appreciated that herein
Described specific embodiment is not used to limit protection domain of the present utility model only as embodiment.
Fig. 1 and Fig. 2 is referred to, it is a kind of structure of ultra-thin area source LED surface mounted lights 100 provided by the utility model
Schematic diagram.The ultra-thin area source LED surface mounted lights 100 include a lamp bracket 10, a light source being arranged in the lamp bracket 10
Module 20, a reflectance coating 30 being arranged on the lamp bracket 10, a light guide plate 40 being arranged in the lamp bracket 10, and
One lampshade 50 being arranged on the light direction of the light guide plate 40.It is envisioned that the ultra-thin area source LED Surface Mounts
Lamp 100 also includes other some function element, such as wire assembly, electrical connection connecting element, and mounting assembly etc., to this
No longer describe in detail, it should be the technology known by those skilled in the art.
The lamp bracket 10 is a disc and including a bottom 11, a side wall 12 extended out from the bottom 11,
One interrupted stop part 13 extended out from bottom 11, and two be respectively used to the two ends that card sets the light source module 20
Staggeredly blocking part 14.The lamp bracket 10 generally can not only be used to assemble other functions element, can also be used for heat conduction, therefore
It can be made from a material that be thermally conductive, such as metal or heat-conducting plastic.In the present embodiment, for reduces cost, the lamp bracket 10 by
Heat-conducting plastic is made.The bottom 11 is used to place various parts, and it is circular.The side wall 12 is arranged on the circular base
The edge in portion 10, to house other functions element with the bottom 11 and to form a closing space together with lampshade 50.Institute
The height for stating side wall 12 is suitable with the width of the light source module 20.The stop part 13 sets with the interval of side wall 12 of lamp bracket 10
Put, while the lamp bracket 10 also includes at least one wire top 15 relative with the space of the interrupted stop part 13,
The wire top 15 extends out from the side wall 12.Come together to fix wire group with the stop part 13 in the wire top 15
The relative position of part, will wire be folded between wire top 15 and stop part 13.The stop part 13 and staggeredly keep out
Portion 14 is arranged on the bottom 11, is respectively used to fix the light guide plate 40 and light source module 20, and it can be illustrated together below.
The light source module 20 includes multiple LED chips 21, a flexible PCB for being used to set the LED chip 21
22, and a heat conduction bar 23 being arranged on the flexible PCB.The LED chip 21 can be converted electrical energy into for one kind
It is the semiconductor devices of the solid-state of visible ray, electricity directly can be converted into luminous energy by it, it has an energy-conservation, cold light, small volume
Feature, and known by those skilled in the art, will not be repeated here.Edge in multiple LED chips 21 of the light source module 20
The ultimate range of the two LEDs chips 21 end to end of the flexible PCB 22 is 2/3rds of the girth of the side wall 12.By
In the circle of the lamp bracket 10, the multiple LED chips 21 being sticked in the light source module 20 of the side wall 12 of the lamp bracket 10 cannot
It is covered with whole side wall 12, can otherwise forms mutual interference between light, topmost phenomenon is exactly middle especially bright and periphery is gone
It is more relatively dark, to form uniform area source so as to be unfavorable for.And ought end to end two LEDs chips 21 ultimate range be the side
The girth of wall 12 2/3rds when can then eliminate the phenomenon, reach uniform area source effect.If certainly very little, also unfavorable
In the formation of uniform area source, now often have the place of LED chip 21 can brighter, without place can be secretly.Institute
It can be printed circuit board (PCB) to state flexible PCB 22, for providing the energy, the structure and work of itself for each LED chip 21
Make principle for prior art, no longer describe in detail.The flexible PCB 22 is coated with being provided with the surface of LED chip 21
White reflection ink.The white reflection ink is conducive to provide light efficiency, that is, be projected onto being instead reflected back again on the circuit board 22
Go.The flexible PCB 22 is pasted onto on the heat conduction bar 23, and the light source module 20 is fixed by fixing the heat conduction bar 23.
The heat conduction bar 23 is in contact with the side wall 12 of the lamp bracket 10, is beneficial to and produces more and soon by the LED chip 21 as far as possible
Raw heat transfer is gone out, therefore the heat conduction bar 23 is made from a material that be thermally conductive, such as metal.The two ends of the heat conduction bar 23 are fastened on
Two of the lamp bracket 10 are interlocked between blocking part 14, so as to fix the light source module 20.As shown in figure 1, described staggeredly keep out
Portion 14 includes that first blocking part 141 extended out from side wall 12 and second extended out from bottom 11 are supported
Stopper 142.Second blocking part 142 and first blocking part 141 and the interval setting of side wall 12, such that it is able to be led described
One end of hot bar 23 is kept out in first, second blocking part 141,142, and between side wall 12, and flexible PCB 22 can
It is electrically connected with wire assembly with from being stretched out between first, second blocking part 141,142.
The reflectance coating 30 is used to for the light that light source module 20 irradiates the bottom 11 to lamp bracket 10 to be reflected towards light guide plate 40.By
In the emergent light of LED chip 21 be non-scattered, and mostly direct light, therefore, in order that on the exit facet of the surface mounted light 100
Light is uniform to scatter light, it is necessary to the direct light is upset into, therefore, the reflectance coating 30 is diffusing reflection reflective membrane.The reflectance coating
30 are coated on paper by reflectorized material and are made, while the unordered coating of the reflectorized material.
Fig. 3 is please combined in the lump, and the light guide plate 40 is arranged on the reflectance coating 30 and receives the light source including one
The incident wall 41 of the emergent light of module 20, a reflecting wall 42 for being used for reflection light, and one connect with the reflectance coating 30
Tactile diffusingsurface 43.The light guide plate 40 is a kind of prior art, is typically made up of the acrylic/PC plate material using optical grade,
Its thickness is suitable with the width or maximum gauge of LED chip 21.Multiple LED cores of the incident wall 41 and the light source module 20
Piece 21 is close to receive the emergent light from the LED chip 21.Tried one's best for the emergent light to the LED chip 21 and be diffused
To form area source, the position that the edge of the i.e. light guide plate 40 of the incident wall 41 is relative with each LED chip 21 is provided with one
Individual spreading grooves 411.The spreading grooves 411 are circular arc for the bottom of a V-arrangement and the V-arrangement.Arc length at the opening of the V-arrangement with
The length of LED chip 21 quite so that during the emergent light of the LED chip 21 can fully enter the light guide plate 40.It is described
The length of incident wall 41 is suitable with the ultimate range of the two LEDs chips 21 end to end of the light source module 20.The reflecting wall 42
On reflector layer 421 can be set.The reflector layer 421 is diffusing reflection reflective sheeting.Multiple light guiding points are provided with the diffusingsurface 43
431, so that the plurality of light guiding points 431 are arranged on the light guide plate 40 and are located between the reflectance coating 30 and light guide plate 40.
The multiple light guiding points 431 are printed by with the high reflectivity and not material of extinction with UV screen printing technologies.Using described
Light guide plate 40 receives the light issued from the LED chip 21 in itself, when light is mapped to each light guiding points 431, reflected light
Can then destroy conditioned reflex and projected by the exit facet of light guide plate 40 toward all angles diffusion.By setting the light guiding points
431 density degree can make the uniformly light-emitting of light guide plate 40.The light guiding points 431 described in the utility model include multiple interval settings
Round spot, the 60% to 65% of the gross area of diffusingsurface 43 described in the gross area point of the round spot.The light guide plate 40 is supported in institute
State between stop part 13 and the second top 142 of staggeredly top 14 to fix the light guide plate 40 relative position diametrically
Put.
The lampshade 50 is arranged on the light direction of the light guide plate 40, is to protect light guide plate 40 not its role is to one
It is worn, two is that the light guide plate 40, reflective membrane 30 are assembled in a closing space, forms an entirety.The lampshade
50 include an exiting surface 51, and the light shield layer 52 that a circle is connected with the exiting surface 51.The exiting surface 51 is arranged on described
On the light direction of light guide plate 40, its light transmittance can be 100%.The light shield layer 52 is used to stop that the light source module 20 is straight
The light that sending and receiving go out, therefore the radial width of the light shield layer 52 arrives the ultimate range phase of adjacent wall 12 with the spreading grooves 411
When.The lampshade 50 is close to the exiting surface of the light guide plate 40 simultaneously, to avoid the light of LED chip 21 directly from the lampshade 50
Exiting surface 51 in project.
Compared with prior art, the circular ultra-thin area source LED surface mounted lights 100 utilize side principle of luminosity, by described
The shared ratio in lamp bracket 10 of light source module 20, the structure of the light guide plate 40 and the shape of light guiding points 431 and shared
Ratio, and reflectance coating 30 design, such that it is able to obtain an area source LED surface mounted light both thin and that light efficiency is best so that
The demand of user may be met.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
The spirit of utility model and interior made any modification of principle, equivalent and improvement etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of ultra-thin area source LED surface mounted lights, it is characterised in that：The area source surface mounted light includes a lamp bracket, and one sets
Put the light source module in the lamp bracket, a reflectance coating being arranged on the lamp bracket, one is arranged in the lamp bracket
Light guide plate, and one layer of light guiding points for being arranged on the light guide plate and being located between the reflectance coating and light guide plate, the lamp
Frame is a disc and including a bottom and a side wall extended out from the bottom, and the light source module is in bar shaped and wraps
Include plurality of LEDs chip, the light direction of the light source module perpendicular to the lamp bracket side wall, end to end the two of the light source module
The ultimate range of LEDs chip is 2/3rds of described perimeter side wall, and the reflectance coating is diffusing reflection reflective sheeting and sets
In the bottom of the lamp bracket, the edge of the light guide plate position relative with each LED chip is provided with a spreading grooves, institute
It is circular arc to state the bottom that spreading grooves are a V-arrangement and the V-arrangement, and the light guide plate includes an outgoing for receiving the light source module
The incident wall of light and a reflecting wall for being used for reflection light, the length of the incident wall and two LEDs end to end of light source module
The ultimate range of chip quite, is provided with reflector layer on the reflecting wall, the light guiding points include multiple spaced round spots,
The area of the round spot accounts for the 60% to 65% of the gross area of the light guide plate.
2. ultra-thin area source LED surface mounted lights as claimed in claim 1, it is characterised in that：The area source surface mounted light also includes
One lampshade being arranged on the light direction of the light guide plate.
3. ultra-thin area source LED surface mounted lights as claimed in claim 2, it is characterised in that：The edge of the lampshade includes a circle
Light shield layer, the radial width of the light shield layer.
4. ultra-thin area source LED surface mounted lights as claimed in claim 2, it is characterised in that：The light transmittance of the lampshade is
100%.
5. ultra-thin area source LED surface mounted lights as claimed in claim 1, it is characterised in that：The light source module also includes one
Flexible PCB and one is arranged on heat conduction bar on the flexible PCB, and the multiple LED chip is distinguished with the heat conduction bar
It is arranged on the flexible PCB.
6. ultra-thin area source LED surface mounted lights as claimed in claim 5, it is characterised in that：The flexible PCB is set
The side for stating multiple LED chips is coated with white reflection ink.
7. ultra-thin area source LED surface mounted lights as claimed in claim 1, it is characterised in that：The thickness and LED core of the light guide plate
The width or maximum gauge of piece are suitable.
8. ultra-thin area source LED surface mounted lights as claimed in claim 1, it is characterised in that：The lamp bracket includes one from bottom
The interrupted stop part for extending out, and two be respectively used to card set the light source module two ends staggeredly blocking part, it is described
Stop part is close to set with the reflecting wall of light guide plate, and the light source module is arranged between described two staggeredly blocking parts, described
Light guide plate is supported between the stop part and staggeredly blocking part.
9. ultra-thin area source LED surface mounted lights as claimed in claim 8, it is characterised in that：The side wall of the stop part and lamp bracket
Interval setting, the lamp bracket also includes at least one wire top relative with the space of interrupted stop part, the wire
Top extends out from the side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050046.5U CN206234626U (en) | 2016-09-13 | 2016-09-13 | A kind of ultra-thin area source LED surface mounted lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050046.5U CN206234626U (en) | 2016-09-13 | 2016-09-13 | A kind of ultra-thin area source LED surface mounted lights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234626U true CN206234626U (en) | 2017-06-09 |
Family
ID=58981917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621050046.5U Active CN206234626U (en) | 2016-09-13 | 2016-09-13 | A kind of ultra-thin area source LED surface mounted lights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234626U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816640A (en) * | 2016-09-13 | 2018-03-20 | 赛尔富电子有限公司 | A kind of ultra-thin area source LED surface mounted lights |
| CN109488948A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED indoor lamp with electric mosquito net |
| CN109488954A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED ceiling lamp with mosquito killing function |
| CN112997036A (en) * | 2018-11-02 | 2021-06-18 | 株式会社小糸制作所 | Vehicle lamp |
-
2016
- 2016-09-13 CN CN201621050046.5U patent/CN206234626U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816640A (en) * | 2016-09-13 | 2018-03-20 | 赛尔富电子有限公司 | A kind of ultra-thin area source LED surface mounted lights |
| CN112997036A (en) * | 2018-11-02 | 2021-06-18 | 株式会社小糸制作所 | Vehicle lamp |
| CN112997036B (en) * | 2018-11-02 | 2023-12-01 | 株式会社小糸制作所 | Lamp for vehicle |
| CN109488948A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED indoor lamp with electric mosquito net |
| CN109488954A (en) * | 2018-12-30 | 2019-03-19 | 苏州远卓科技信息有限公司 | Anti- glare LED ceiling lamp with mosquito killing function |
| CN109488948B (en) * | 2018-12-30 | 2021-01-29 | 苏州远卓科技信息有限公司 | Anti-glare LED indoor lamp with electric mosquito net |
| CN109488954B (en) * | 2018-12-30 | 2022-01-25 | 苏州远卓科技信息有限公司 | Anti-glare LED ceiling lamp with mosquito killing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102418889B (en) | Flat lighting module and flat lighting assembly apparatus including the same | |
| US8733970B2 (en) | Lighting apparatus with light controlling reflective layer | |
| CN206234626U (en) | A kind of ultra-thin area source LED surface mounted lights | |
| JP5178796B2 (en) | Light emitting device and lighting device | |
| CN103732974A (en) | Planar illumination light source apparatus using light emitter | |
| CN215764857U (en) | Photoelectric module and LED lamp applying same | |
| CN107816640A (en) | A kind of ultra-thin area source LED surface mounted lights | |
| CN103672634B (en) | Modular panel lamp | |
| CN203099586U (en) | Light-emitting diode (LED) ceiling lamp | |
| US10151871B2 (en) | Ultra-thin LED bar lights | |
| CN206093574U (en) | Ultra -thin type LED bar lamp | |
| KR20220098713A (en) | Lighting apparatus | |
| CN202834837U (en) | Light emitting diode (LED) fluorescent lamp | |
| KR20110000897A (en) | Led light bulb | |
| CN102269354A (en) | LED light emitting device | |
| CN219243513U (en) | Touch lamp with dimming function | |
| CN212456524U (en) | Ceiling lamp | |
| CN209101216U (en) | Ultra-thin bracket and Frame lamp | |
| KR101389979B1 (en) | Led lamp | |
| CN210581906U (en) | Multifunctional lamp for exhibition stand | |
| TW201307719A (en) | Table lamp | |
| WO2021258563A1 (en) | Led lamp with uniform illumination intensity and radiation | |
| KR20170120750A (en) | Edge type lighting device | |
| CN117847470A (en) | Indirect lighting device capable of emitting light from one side | |
| CN104676333B (en) | Big-angle LED lamp and wide-angle light extraction match somebody with somebody optical assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |