CN114484379B - Linear light source bar lamp - Google Patents
Linear light source bar lamp Download PDFInfo
- Publication number
- CN114484379B CN114484379B CN202111678745.XA CN202111678745A CN114484379B CN 114484379 B CN114484379 B CN 114484379B CN 202111678745 A CN202111678745 A CN 202111678745A CN 114484379 B CN114484379 B CN 114484379B
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- light
- total reflection
- strip
- light emitting
- area
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- 238000009792 diffusion process Methods 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims abstract description 19
- 238000005286 illumination Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000004313 glare Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- F21S4/00—Lighting devices or systems using a string or strip of light sources
- F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
- F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
- F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/043—Refractors for light sources of lens shape the lens having cylindrical faces, e.g. rod lenses, toric lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/049—Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The embodiment discloses a linear light source bar lamp, includes: a strip-shaped lamp holder; the strip-shaped circuit board is arranged on the strip-shaped lamp bracket, and the front surface of the strip-shaped lamp bracket is provided with light emitting chips which are arranged at intervals along the length direction; the strip-shaped lens is arranged in the light emitting direction of the light emitting chip and comprises a light inlet area, a light emitting area and a total reflection area, a first convex lens array which is arranged along the length direction is arranged on the light emitting area, and the first convex lens array stretches the light emitting chip along the length direction to enable the adjacent light emitting chips to be connected with each other to form a linear light source effect; the strip-shaped lamp shade is arranged on the strip-shaped lamp holder and positioned at the outer side of the strip-shaped lens; the strip-shaped lampshade is provided with the light diffusion area which at least partially covers the total reflection area.
Description
Technical Field
The invention relates to the field of lighting devices, in particular to a linear light source strip lamp.
Background
Under the background of energy conservation and environmental protection, the LED lamp is increasingly applied to the fields of household and commercial illumination due to high light emitting efficiency and good light condensing performance.
The LED lamps and lanterns in the present market mainly adopt the pointolite illumination, this kind of illumination has glare and reflection glare problem, in order to solve above-mentioned problem, the researcher tries to adopt the line source to replace the pointolite, generally adopt the method that adds a diffusion lamp shade, this diffusion lamp shade can diffuse the light from LED, but because diffusion direction is not single, cause the line source to image the confusion and blurring, this line source that forms is used for shining by the illumination face again directly, the grading effect is not good, the energy attenuation is more for the line source that forms is dim and disordered, finally throw the illumination inhomogeneous on the illumination face, lead to the illuminating effect not good.
Meanwhile, the existing improved linear light source lamp is larger in size or more in used LED lamp particles for achieving a linear light source effect, so that production cost is increased.
Disclosure of Invention
In view of the above, the present invention provides a linear light source bar lamp to solve the above technical problems.
A linear light source bar lamp comprising:
A strip-shaped lamp holder;
The strip-shaped circuit board is arranged on the strip-shaped lamp bracket, and the front surface of the strip-shaped lamp bracket is provided with light emitting chips which are arranged at intervals along the length direction;
The strip-shaped lens is arranged in the light emitting direction of the light emitting chip and comprises a light inlet area, a light emitting area and a total reflection area, a first convex lens array which is arranged along the length direction is arranged on the light emitting area, and an image which enables the light emitting chip to be stretched along the length direction and enables adjacent light emitting chips to be connected with each other is displayed on the first convex lens array to form a linear light source effect;
the strip-shaped lamp shade is arranged on the strip-shaped lamp holder and positioned at the outer side of the strip-shaped lens;
The strip-shaped lampshade is provided with a light diffusion area which at least partially covers the total reflection area.
Preferably, the first convex lens array deflects the light emitted by the light emitting chip towards two ends along the length direction, so that the light emitting areas of the adjacent light emitting chips are connected with each other or covered to form a linear light source effect.
Preferably, the light diffusion area is a second convex lens array, and an image of the line light source effect is formed by stretching the light emitting chips along the length direction to connect adjacent light emitting chips with each other.
Preferably, the second convex lens array deflects the light emitted from the light emitting chip towards two ends along the length direction, so that the light emitting areas of the adjacent light emitting chips are connected with each other or covered to form a linear light source effect.
Preferably, the light diffusion region is provided with a diffusing agent.
Preferably, the total reflection area comprises a first total reflection surface and a second total reflection surface which are arranged in the middle of the strip-shaped lens, and the first total reflection surface and the second total reflection surface are connected and incline outwards along the direction away from the light-emitting chip; the light diffusion region includes a first light diffusion surface that correspondingly covers the first and second total reflection surfaces.
Preferably, the light emitting area includes a first light emitting surface and a second light emitting surface disposed at two sides of the first total reflection surface and the second total reflection surface.
Preferably, the total reflection area further includes a third total reflection surface and a fourth total reflection surface disposed at two sides of the first light-emitting surface and the second light-emitting surface;
The light emergent area further comprises a third light emergent surface and a fourth light emergent surface, the third light emergent surface is arranged between the third total reflection surface and the second light emergent surface, and the fourth light emergent surface is arranged between the fourth total reflection surface and the first light emergent surface.
Preferably, the light diffusion region includes a second light diffusion surface and a third light diffusion surface that cover the third total reflection surface and the fourth total reflection surface, respectively.
The invention has the technical effects that:
The linear light source strip lamp is arranged on the light emitting surface, the lens can be directly molded during injection molding, the cost is not increased, the die precision is higher, the light control is more accurate, meanwhile, in order to solve the problem that light leakage and light sweeping uniformity are solved on the lamp because of materials, precision, injection molding and the like, the light leakage is slightly caused on the lens, the diffusion layer is arranged at a specific part of the lamp cover, and the main light emitting surface of the lamp is a transparent layer, so that the point problem of light leakage is solved, and meanwhile, the problem of light sweeping uniformity is solved.
Drawings
Embodiments of the invention are described below with reference to the accompanying drawings, in which:
Fig. 1 is a schematic diagram of a linear light source bar lamp according to the present embodiment.
Fig. 2 is a schematic cross-sectional view of the linear light source bar lamp of the present embodiment.
Fig. 3 is a schematic view of a partial explosion structure of the linear light source bar lamp of the present embodiment.
Fig. 4 is a schematic cross-sectional view of another embodiment of a linear light source bar lamp.
Detailed Description
Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of the embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the linear light source bar lamp of this embodiment includes: the strip lamp socket 100, the strip circuit board 200, the strip lens 400, and the strip lamp cover 600. The strip-shaped circuit board 200 is arranged on the strip-shaped lamp bracket, the front face is provided with the light emitting chips 300 which are arranged at intervals along the length direction, and the light emitting chips 300 are commonly used LED chips, and the structure is common in the prior art and is not repeated.
The stripe lens 400 of this embodiment is disposed in the light emitting direction of the light emitting chip 300, the stripe lens 400 generally refers to a lens formed by extending a single-shaped cross section in the length direction, the cross section shape may be set as required, the lens has a light-in area and a light-out area, and sometimes a total reflection surface is disposed for realizing light distribution, in this embodiment, the stripe lens 400 includes a light-in area 403, a light-out area 401 and a total reflection area 402, the light emitting chip 300 can be seen in the light-out area 401, and in order not to exhibit the effect of a point light source, a first convex lens array 500 arranged along the length direction is disposed in the light-out area 401 of this embodiment, and an image in which the light emitting chip 300 is stretched along the length direction so that adjacent light emitting chips 300 are connected to each other to form a linear light source effect is presented in the first convex lens array 500; the density of the first convex lens array 500 and the shape of the convex lenses may be adjusted according to the imaging effect, and the final effect is to form a line light source. The strip lamp cover 600 is disposed on the strip lamp holder 100 and located outside the strip lens 400, and the strip lamp cover 600 is a common component and can function to protect the internal structure of the lamp. When the total reflection area 402 of the strip lens 400 is used for light distribution, part of light leakage is caused to see the light emitting chip 300, and the total reflection area is not provided with a light emitting function, and the image of the light emitting chip 300 on the surface thereof cannot be changed by providing lines, in order to solve the problem, the strip lampshade 600 of the embodiment is provided with the light diffusion area 601 at least partially covering the total reflection area 402.
The first convex lens array 500 deflects the light emitted from the light emitting chip 300 toward both ends along the length direction, so that the light emitting areas of the adjacent light emitting chips 300 are connected to each other or cover each other to form a linear light source effect.
The light diffusion area 601 is provided for diffusing light in the total reflection area 402 without light emission, so that no point light source is visible, and since light distribution is not required, in this embodiment, the light diffusion area 601 is provided with a diffusing agent, and the bar-shaped lampshade 600 can be manufactured by a bicolor extrusion process. The amount of diffusing agent can be adjusted as desired.
In another embodiment, the light diffusion region 601 is a second convex lens array, and the second convex lens array is used for displaying an image that the light emitting chips 300 are stretched along the length direction to connect the adjacent light emitting chips 300 to each other to form a linear light source effect, which may be more costly to manufacture.
The second convex lens array deflects the light emitted from the light emitting chip 300 toward both ends along the length direction, so that the light emitting areas of the adjacent light emitting chips 300 are connected to each other or cover to form a linear light source effect.
The present embodiment provides a bar lens 400 with a specific shape, the total reflection area 402 includes a first total reflection surface 4021 and a second total reflection surface 4022 disposed in the middle of the bar lens 400, and the first total reflection surface 4021 and the second total reflection surface 4022 are connected and inclined outwards along a direction away from the light emitting chip 300; the light diffusion region 601 includes a first light diffusion surface 6011 that covers the first total reflection surface 4021 and the second total reflection surface 4022, respectively. The first total reflection surface 4021 and the second total reflection surface 4022 are configured to totally reflect light in a middle region of the light emitted from the light emitting chip 300 toward both sides.
In this embodiment, the light-emitting region 401 includes a first light-emitting surface 4011 and a second light-emitting surface 4012 disposed on both sides of the first total reflection surface 4021 and the second total reflection surface 4022.
In this embodiment, the total reflection area 402 further includes a third total reflection surface 4023 and a fourth total reflection surface 4024 disposed on both sides of the first light-emitting surface 4011 and the second light-emitting surface 4012; the third total reflection surface 4023 and the fourth total reflection surface 4024 are configured to totally reflect light in the middle of the light emitting chip 300 in the regions on both sides of the light.
The light-emitting region 401 further includes a third light-emitting surface 4013 and a fourth light-emitting surface 4014, the third light-emitting surface 4013 is disposed between the third total reflection surface 4023 and the second light-emitting surface 4012, and the fourth light-emitting surface 4014 is disposed between the fourth total reflection surface 4024 and the first light-emitting surface 4011.
As shown in fig. 4, in another embodiment, the light diffusion region 601 includes a second light diffusion surface 6012 and a third light diffusion surface 6013 that cover the third total reflection surface 4023 and the fourth total reflection surface 4024, respectively.
In another embodiment, both the strip circuit board 200 and the strip lens 400 are mounted within the strip lamp chimney 600.
The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.
Claims (5)
1. A linear light source bar lamp comprising:
A strip-shaped lamp holder (100);
the strip-shaped circuit board (200) is arranged on the strip-shaped lamp bracket, and the front surface of the strip-shaped lamp bracket is provided with light emitting chips (300) which are arranged at intervals along the length direction;
The light emitting device is characterized by comprising a strip lens (400) which is arranged in the light emitting direction of the light emitting chip (300), wherein the strip lens (400) comprises a light inlet region (403), a light outlet region (401) and a total reflection region (402), a first convex lens array (500) which is arranged along the length direction is arranged on the light outlet region (401), the first convex lens array (500) deflects the light emitted by the light emitting chip (300) along the length direction to two ends so that the light outlet regions of the adjacent light emitting chips (300) are connected with each other or cover each other to form a linear light source effect, the total reflection region (402) comprises a first total reflection surface (4021) and a second total reflection surface (4022) which are arranged in the middle of the strip lens (400), and the first total reflection surface (4021) and the second total reflection surface (4022) are connected with each other and are inclined outwards along the direction far away from the light emitting chip (300);
The light-emitting area (401) comprises a first light-emitting surface (4011) and a second light-emitting surface (4012) which are arranged on two sides of the first total reflection surface (4021) and the second total reflection surface (4022); the total reflection area (402) further comprises a third total reflection surface (4023) and a fourth total reflection surface (4024) which are arranged at two sides of the first light-emitting surface (4011) and the second light-emitting surface (4012); the light emergent region (401) further comprises a third light emergent surface (4013) and a fourth light emergent surface (4014), the third light emergent surface (4013) is arranged between the third total reflection surface (4023) and the second light emergent surface (4012), and the fourth light emergent surface (4014) is arranged between the fourth total reflection surface (4024) and the first light emergent surface (4011);
A strip lamp shade (600) arranged on the strip lamp holder (100) and positioned outside the strip lens (400);
The strip-shaped lampshade (600) is provided with a light diffusion area (601) which at least partially covers the total reflection area (402), the main light emitting surface is a transparent layer, and the light diffusion area (601) comprises a first light diffusion surface (6011) which correspondingly covers the first total reflection surface (4021) and the second total reflection surface (4022).
2. The linear light source bar lamp according to claim 1, wherein the light diffusion area (601) is a second convex lens array, and an image of the linear light source effect is formed by stretching the light emitting chips (300) along the length direction and connecting adjacent light emitting chips (300) to each other is displayed on the second convex lens array.
3. The linear light source bar lamp according to claim 2, wherein the second convex lens array deflects the light emitting of the light emitting chip (300) toward both ends in the length direction so that the light emitting areas of the adjacent light emitting chips (300) are connected to each other or cover to form a linear light source effect.
4. Linear light source bar lamp according to claim 1, characterized in that the light diffusing area (601) is provided with a diffusing agent.
5. The linear light source bar lamp according to claim 1, characterized in that the light diffusing area (601) comprises a second light diffusing surface (6012) and a third light diffusing surface (6013) covering the third fully reflective surface (4023) and the fourth fully reflective surface (4024), respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678745.XA CN114484379B (en) | 2021-12-31 | 2021-12-31 | Linear light source bar lamp |
| EP22214153.3A EP4206519A1 (en) | 2021-12-31 | 2022-12-16 | A linear light source strip light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678745.XA CN114484379B (en) | 2021-12-31 | 2021-12-31 | Linear light source bar lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114484379A CN114484379A (en) | 2022-05-13 |
| CN114484379B true CN114484379B (en) | 2024-05-10 |
Family
ID=81510444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111678745.XA Active CN114484379B (en) | 2021-12-31 | 2021-12-31 | Linear light source bar lamp |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4206519A1 (en) |
| CN (1) | CN114484379B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973850A (en) * | 2019-04-19 | 2019-07-05 | 赛尔富电子有限公司 | A kind of linear light source headlamp |
| CN110285335A (en) * | 2019-06-19 | 2019-09-27 | 赛尔富电子有限公司 | A kind of optical element and the lamps and lanterns with the optical element |
| CN110529823A (en) * | 2019-06-19 | 2019-12-03 | 赛尔富电子有限公司 | A kind of optical element and the headlamp with the optical element |
| CN110886983A (en) * | 2019-11-07 | 2020-03-17 | 赛尔富电子有限公司 | a lighting lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014100784U1 (en) * | 2014-02-21 | 2014-02-27 | Itz Innovations- Und Technologiezentrum Gmbh | Lens device with molded fastening means for an LED light |
| US9806242B2 (en) * | 2015-09-23 | 2017-10-31 | Hon Hai Precision Industry Co., Ltd. | Optical lens for light emitting diode device |
-
2021
- 2021-12-31 CN CN202111678745.XA patent/CN114484379B/en active Active
-
2022
- 2022-12-16 EP EP22214153.3A patent/EP4206519A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973850A (en) * | 2019-04-19 | 2019-07-05 | 赛尔富电子有限公司 | A kind of linear light source headlamp |
| CN110285335A (en) * | 2019-06-19 | 2019-09-27 | 赛尔富电子有限公司 | A kind of optical element and the lamps and lanterns with the optical element |
| CN110529823A (en) * | 2019-06-19 | 2019-12-03 | 赛尔富电子有限公司 | A kind of optical element and the headlamp with the optical element |
| CN110886983A (en) * | 2019-11-07 | 2020-03-17 | 赛尔富电子有限公司 | a lighting lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114484379A (en) | 2022-05-13 |
| EP4206519A1 (en) | 2023-07-05 |
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