CN104791711A - Led lamp cup lens - Google Patents
Led lamp cup lens Download PDFInfo
- Publication number
- CN104791711A CN104791711A CN201510152883.2A CN201510152883A CN104791711A CN 104791711 A CN104791711 A CN 104791711A CN 201510152883 A CN201510152883 A CN 201510152883A CN 104791711 A CN104791711 A CN 104791711A
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- China
- Prior art keywords
- lens
- light
- led
- lamp cup
- led lamp
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011324 bead Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 235000017060 Arachis glabrata Nutrition 0.000 abstract description 12
- 241001553178 Arachis glabrata Species 0.000 abstract description 12
- 235000010777 Arachis hypogaea Nutrition 0.000 abstract description 12
- 235000018262 Arachis monticola Nutrition 0.000 abstract description 12
- 235000020232 peanut Nutrition 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005286 illumination Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 230000004907 flux Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses an LED lamp cup lens. The LED lamp cup lens comprises a lamp cup lens body for distributing light to an LED light source. The lamp cup lens body comprises a base surface, reflection surfaces, a lens light outlet surface, a refraction surface and a lens inner cavity outer surface which form the cup-shaped lens body. A reflection center point, a refraction center point, a light outlet center point of the concave surface of the lens light outlet surface and an inner cavity center point of a lens inner cavity are jointly located on the same axial line. In the using process, light is released from the LED light source, one part of light penetrates through an internal medium of the cup-shaped lens body and then is released to the exterior through the lens light outlet surface and the refraction surface, the other part of light is scattered to the reflection surfaces, reflected to the lens light outlet surface and the refraction surface through the reflection surfaces, and then released to the exterior, the light emitted by the LED light source can be fully released to the exterior, the light loss caused by the fact that the distance between surface protrusions of a peanut lens and a plane lens is long in the prior art is avoided, and the effects of improving the light utilization rate and achieving light illumination are achieved.
Description
[technical field]
The present invention relates to a kind of LED light luminous intensity distribution instrument, refer in particular to the LED lamp cup lens in a kind of LED lens and LED lens mould prescription face.
[background technology]
There is various light distribution device in currently available technology, because LED easily realizes various forms of luminous intensity distribution, and extensively used by light trade.Wherein in LED luminous intensity distribution, the most frequently used technological means carries out luminous intensity distribution design by secondary optical lens, namely install on the basis making intact single LED lamp independently lens to carry out luminous intensity distribution design.The lens adopted are generally the lens of Merlon (PC) material, and these lens, independent of outside single LED lamp, are called secondary lens.Secondary lens and single LED lamp light emitting source form optical system jointly, and obtain target luminous intensity distribution form.C-planar system is a kind of conventional measurement and describes the coordinate system of light source or the distribution of light fixture spatial light intensity, and this system can be used in the luminosity measurement of LED light source or light fixture.Measure under C-planar system and describe LED light source or light fixture spatial light intensity distribution, light distribution is generally described by distribution curve flux.This distribution curve flux is under polar coordinate system or rectangular coordinate system, the light intensity value corresponding to all angles in certain the luminous intensity distribution plane marked, and depicts the curve that light intensity value changes with angle.The distribution curve flux that what people generally paid close attention to and analyzed is in these two luminous intensity distribution planes of C0-C180 and C90-C270.From distribution curve flux figure, the distribution curve flux in these two planes can be overlap, and also can be diverse.The angle that we define the left side of distribution curve flux figure 0 degree of angle line is positive-angle (representing with "+"), the angle on the right side of 0 degree of angle line is negative angle (representing with "-"), distribution curve flux in so each plane can be symmetrical expression (symmetrical relative to 0 degree of angle line), also can be asymmetric (asymmetric relative to 0 degree of angle line left and right).Can the value at reading optical beam angle from distribution curve flux, the beam angle that we define distribution curve flux in certain luminous intensity distribution plane is angle value that the angle value+largest light intensity angle line dextrorotation turned over when largest light intensity angle line is rotated counterclockwise to 50% largest light intensity angle line on beam angle=distribution curve flux turns over when going to the angle line of 50% largest light intensity.In addition, in order to express easily, we are called C0-C180 cross section by LED lens arrangement with the face of C0-C180 luminous intensity distribution planes overlapping, are called C90-C270 cross section with the face of C90-C270 luminous intensity distribution planes overlapping, and C0-C180 cross section and C90-270 cross section are as the sectional view plane of LED lens arrangement.Being that the lens of rectangular light spot are generally designed to peanut-shaped to realize irradiated area in the prior art, being shelled peanut lens.The surface of these shelled peanut lens all needs to make protruding form, but, glass transparency light fixture designs, needs the planar transparent cover increasing one deck lens at lens surface again.Because shelled peanut lens surface is protruding, planar lens cover needs, from the distant distance of lens, to make described shelled peanut lens light loss become serious, cause the loss of total reflection and refraction, a lot of light can not be distributed out between lens and flat cover, reduces light utilization.Again due to after the lens surface of shelled peanut form adds planar transparent cover, easily original lens light curve is had an impact, the illuminating effect of the shelled peanut lens described in reduction.
[summary of the invention]
Technical purpose of the present invention provides a kind of raising light utilization to solve above-mentioned prior art Problems existing, improves the LED lamp cup lens of illumination effect.
In order to realize above-mentioned technical problem, a kind of LED lamp cup lens provided by the present invention, it comprises the Lamp cup lens body for LED light emitting source luminous intensity distribution, this Lamp cup lens body comprises susceptor surface, from susceptor surface edges at two ends be inclined upwardly extend and form reflecting surface, inner formation lens light output surface between these two reflecting surface ends, the upper surface of this lens light output surface forms refractive surface; Described susceptor surface top is formed with the lens inner chamber for accommodating LED light emitting source, this lens inner chamber comprise vertical lens surface and be arranged at vertical lens surface and vertical lens surperficial between arc shape lens ball surface; The reflection kernel point of described reflecting surface, the refractive central point of refractive surface, the bright dipping central point of inner concave on lens light output surface, the lumen centers point of lens inner chamber is co-located on same axial line, this axial line and C0-180 and C90-270 cross-section parallel; Described reflecting surface, lens light output surface, vertical lens surface and lens ball surface form host cavity, are formed with the light transmissive material that can penetrate for optics in this host cavity.
According to described technical characteristics, described emitting surface is the striped of bar shaped column, this stripe direction and CO-180 cross section orthogonal.
According to described technical characteristics, described refractive surface is the striped of slice shape column, in wavy, and the direction of this striped and C90-270 cross-section parallel, the direction of this bar shaped and C0-180 cross section orthogonal.
According to described technical characteristics, described lens light output surface is concave surface, is inner concave arc surface at the exiting surface at C0-180 place, cross section.
According to described technical characteristics, be provided with LED light emitting source in described lens inner chamber, this LED light emitting source is positioned at the center of lens inner chamber.
According to described technical characteristics, described LED light emitting source is formed by a LED lamp bead or multiple LED lamp bead serial or parallel connection.
According to described technical characteristics, the bright dipping center line of the lumen centers line of described lens inner chamber and the inner concave of lens exiting surface at grade.
According to described technical characteristics, described CO-180 cross section is mutually vertical with C90-270 cross section by LED light emitting source summit.
According to described technical characteristics, described reflecting surface, refractive surface, the center of lens light output surface, the center of lens inner chamber on the same line, with C0-180 and C90-270 cross-section parallel.
According to described technical characteristics, be provided with LED light emitting source in described lens inner chamber, this LED light emitting source can be LED lens module, and this LED lens module is in parallel by multiple LED lens or assembled in series forms integral structure together.
Beneficial effect of the present invention: form cup lens body because described Lamp cup lens body comprises susceptor surface, reflecting surface, lens light output surface, refractive surface and lens inner chamber outer surface.The reflection kernel point of described reflecting surface, the refractive central point of refractive surface, the bright dipping central point of inner concave on lens light output surface, the lumen centers point of lens inner chamber is co-located on same axial line, this axial line and C0-180 and C90-270 cross-section parallel.During use, light discharges from described LED light emitting source, and a part of light through after cup lens body interior media, then is discharged into the external world by lens light output surface and refractive surface; Another part light scattering is to reflecting surface, the external world is discharged into lens light output surface and refractive surface again by reflective surface reflects, the light that described LED light emitting source distributes fully can be discharged into the external world by this kind of mode, avoid the loss causing light in prior art because of distant between shelled peanut lens surface projection and planar lens, thus reach the effect improving light utilization and light illumination.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional exploded view of LED lamp cup lens in the present invention;
Fig. 2 is the C0-180 directional profile schematic diagram of Lamp cup lens body in the present invention;
Fig. 3 is the C0-270 directional profile schematic diagram of Lamp cup lens body in the present invention;
Fig. 4 is that Lamp cup lens body of the present invention and LED light emitting source combine C0-270 directional profile schematic diagram;
Fig. 5 is that Lamp cup lens body of the present invention and LED light emitting source combine C0-180 directional profile schematic diagram;
Fig. 6 is the top view of LED light emitting source in the present invention;
Fig. 7 is that Lamp cup lens body of the present invention is in C0-270 directional profile schematic diagram;
Fig. 8 is that Lamp cup lens body of the present invention is in C0-180 directional profile schematic diagram.
[specific embodiment]
Please refer to shown in Fig. 1 to Fig. 8, below in conjunction with the first embodiment, a kind of LED lamp cup lens are described, it comprises LED light emitting source 1 and the Lamp cup lens body 2 for LED light emitting source 1 luminous intensity distribution.
Described Lamp cup lens body 2 comprises susceptor surface 21, from susceptor surface 21 edges at two ends be inclined upwardly extend and form reflecting surface 22, inner formation lens light output surface 23 between these two reflecting surface 22 ends, the upper surface of this lens light output surface 23 forms refractive surface 24.
Described susceptor surface 21 top is formed with the lens inner chamber 3 for accommodating LED light emitting source 1, and this lens inner chamber 3 comprises vertical lens surface 31 and is arranged at the lens ball surface 32 of arc shape between vertical lens surface 31 and vertical lens surface 31.The reflection kernel point A of described reflecting surface 22, the refractive central point B of refractive surface 24, the bright dipping central point C of inner concave on lens light output surface 23, the lumen centers point D of lens inner chamber 3 is co-located on same axial line, this axial line and C0-180 and C90-270 cross-section parallel.Described reflecting surface 22, lens light output surface 23, vertical lens surface 31 and lens ball surface 31 form host cavity 4, are formed with the light transmissive material that can penetrate for optics in this host cavity 4.
Described emitting surface 22 is the striped of bar shaped column, this stripe direction and CO-180 cross section orthogonal.Described refractive surface 24 is the striped of slice shape column, in wavy, and the direction of this striped and C90-270 cross-section parallel, the direction of this bar shaped and C0-180 cross section orthogonal.Described lens light output surface 23 is concave surface, is inner concave arc surface at the exiting surface at C0-180 place, cross section.
Be provided with LED light emitting source 2 in described lens inner chamber 3, this LED light emitting source 2 is positioned at the center of lens inner chamber 3.Described LED light emitting source 2 is formed by a LED lamp bead or multiple LED lamp bead serial or parallel connection.The bright dipping center line of the lumen centers line of described lens inner chamber 3 and the inner concave of lens exiting surface 23 at grade.Described CO-180 cross section is mutually vertical with C90-270 cross section by LED light emitting source 2 summit.Described reflecting surface 22, refractive surface 24, the center of lens light output surface 23, the center of lens inner chamber 3 on the same line, with C0-180 and C90-270 cross-section parallel.Be provided with LED light emitting source 2 in described lens inner chamber 3, this LED light emitting source 2 can be LED lens module, and this LED lens module is in parallel by multiple LED lens or assembled in series forms integral structure together.
The two ends of described susceptor surface 21 are connected with reflecting surface 22 respectively, and described lens light output surface 23 two ends are connected with the end face of the reflecting surface 22 described in difference.Namely susceptor surface 21, reflecting surface 22, lens light output surface 23 or refractive surface 24 form a transparent goblet.Be formed with lens cavity volume 3 in the inside of this transparent goblet bottom, it is inner that described lens cavity volume 3 is arranged at transparent goblet.The outer surface of described lens cavity volume 3 and susceptor surface 21, reflecting surface 22, forms cavity volume between lens light output surface 23 or refractive surface 24 three, and luminescent material transparent in this cavity volume is formed.
When LED light emitting source 2 is placed in lens cavity volume inside, the light that this LED light emitting source 2 distributes, a light, after the luminescent material of described lens cavity volume 3 inside, is directly discharged into the external world to lens light-emitting area 23 or refractive surface 24.Another part light is dispersed into emitting surface 22, by emitting surface 22, described light emission is discharged into the external world to lens light-emitting area 23 or refractive surface 24 again, this kind of mode, described light is irradiated to lens front through various ways by the light that described LED light emitting source 2 discharges, the light major part that LED light emitting source 2 is distributed all focuses on the front of lens light output surface 23, decrease the fiber-loss between LED light emitting source 2 to lens light output surface 23, avoid the loss that with the spacing of planar lens reduce light protruding because of shelled peanut lens surface in prior art, thus reach raising light utilization and illumination effect.
In appearance, described Lamp cup lens body 1 is combined by careful design and light sunykatuib analysis, achieve the rectangular light spot design of Lamp cup shape LED lens, simultaneously in order to improve the uniformity, do greatly with the angle in the wide-angle direction by rectangular light spot as far as possible, do striped process at the exiting surface of Lamp cup lens body 1, make the wide-angle direction of lens can accomplish maximum 85 degree, and low-angle can feel free to do little.Meanwhile, the exiting surface design of the past indent used that takes the lead in, makes the light of lens light output surface 23 more even, the spot area brightness uniformity namely irradiated.The form of Lamp cup lens body 1 makes ellipticarch cone simultaneously, makes the hot spot irradiated in closely rectangular-shaped.Meanwhile, in the design increasing transparent face mask, adopt the Lens Design of Lamp cup shape that loss can be made to drop to almost nil as far as possible.This raising head for LED lamp light efficiency helps significantly.
In the present embodiment, the form of lens that described Lamp cup lens body 1 designs is different with traditional shelled peanut form on the market, and when using the lens of Lamp cup shape in the LED lamp needing increase transparent face mask, not only ensure that the degree of losing of light efficiency drops to minimum, does not also affect the light distribution angle of original rectangular light spot.Use the Lamp cup shape Lens Design of rectangular light spot, the overall uniformity of illuminance of irradiation area can reach more than 0.8, after adding transparent face mask, the uniformity has almost no change, and the overall uniformity of the lens of shelled peanut form irradiation area after adding transparent face mask has substantially all dropped to about 0.5 by 0.8, comparatively serious on the impact of luminous intensity distribution shape.
In sum, cup lens body is formed because described Lamp cup lens body 1 comprises susceptor surface 21, reflecting surface 22, lens light output surface 23, refractive surface 24 and lens inner chamber 3 outer surface.The reflection kernel point A of described reflecting surface 22, the refractive central point B of refractive surface 24, the bright dipping central point C of inner concave on lens light output surface 23, the lumen centers point D of lens inner chamber 3 is co-located on same axial line, this axial line and C0-180 and C90-270 cross-section parallel.During use, light discharges from described LED light emitting source 2, and a part of light through after cup lens body 1 interior media, then is discharged into the external world by lens light output surface 23 and refractive surface 24; Another part light scattering is to reflecting surface 22, lens light output surface 23 is reflexed to again and refractive surface 24 is discharged into the external world by reflecting surface 22, the light that described LED light emitting source 2 distributes fully can be discharged into the external world by this kind of mode, avoid the loss causing light in prior art because of distant between shelled peanut lens surface projection and planar lens, thus reach the effect improving light utilization and light illumination.
Claims (10)
1. LED lamp cup lens, it comprises the Lamp cup lens body for LED light emitting source luminous intensity distribution, it is characterized in that: this Lamp cup lens body comprises susceptor surface, from susceptor surface edges at two ends be inclined upwardly extend and form reflecting surface, inner formation lens light output surface between these two reflecting surface ends, the upper surface of this lens light output surface forms refractive surface; Described susceptor surface top is formed with the lens inner chamber for accommodating LED light emitting source, this lens inner chamber comprise vertical lens surface and be arranged at vertical lens surface and vertical lens surperficial between arc shape lens ball surface; The reflection kernel point of described reflecting surface, the refractive central point of refractive surface, the bright dipping central point of inner concave on lens light output surface, the lumen centers point of lens inner chamber is co-located on same axial line, this axial line and C0-180 and C90-270 cross-section parallel; Described reflecting surface, lens light output surface, vertical lens surface and lens ball surface form host cavity, are formed with the light transmissive material that can penetrate for optics in this host cavity.
2. LED lamp cup lens according to claim 1, is characterized in that: described emitting surface is the striped of bar shaped column, this stripe direction and CO-180 cross section orthogonal.
3. LED lamp cup lens according to claim 1, is characterized in that: described refractive surface is the striped of slice shape column, in wavy, and the direction of this striped and C90-270 cross-section parallel, the direction of this bar shaped and C0-180 cross section orthogonal.
4. LED lamp cup lens according to claim 1, is characterized in that: described lens light output surface is concave surface, are inner concave arc surface at the exiting surface at C0-180 place, cross section.
5. LED lamp cup lens according to claim 1, is characterized in that: be provided with LED light emitting source in described lens inner chamber, this LED light emitting source is positioned at the center of lens inner chamber.
6. LED lamp cup lens according to claim 1 or 5, is characterized in that: described LED light emitting source is formed by a LED lamp bead or multiple LED lamp bead serial or parallel connection.
7. LED lamp cup lens according to claim 1, is characterized in that: the bright dipping center line of the lumen centers line of described lens inner chamber and the inner concave of lens exiting surface at grade.
8. LED lamp cup lens according to claim 1, is characterized in that: described CO-180 cross section is mutually vertical with C90-270 cross section by LED light emitting source summit.
9. LED lamp cup lens according to claim 1, is characterized in that: described reflecting surface, refractive surface, the center of lens light output surface, the center of lens inner chamber on the same line, with C0-180 and C90-270 cross-section parallel.
10. LED lamp cup lens according to claim 1, it is characterized in that: in described lens inner chamber, be provided with LED light emitting source, this LED light emitting source can be LED lens module, and this LED lens module is in parallel by multiple LED lens or assembled in series forms integral structure together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152883.2A CN104791711B (en) | 2015-04-01 | 2015-04-01 | LED lamp cup lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152883.2A CN104791711B (en) | 2015-04-01 | 2015-04-01 | LED lamp cup lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104791711A true CN104791711A (en) | 2015-07-22 |
| CN104791711B CN104791711B (en) | 2019-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510152883.2A Active CN104791711B (en) | 2015-04-01 | 2015-04-01 | LED lamp cup lens |
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| Country | Link |
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| CN (1) | CN104791711B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382496A (en) * | 2015-08-28 | 2017-02-08 | 中山市德基德克汽车技术有限公司 | Lamp with self-cleaning light exiting surface |
| CN112576947A (en) * | 2020-11-23 | 2021-03-30 | 绍兴盛典光电科技有限公司 | LED cylindrical lamp with TIR lens |
| CN114080074A (en) * | 2021-11-29 | 2022-02-22 | 深圳市博领光电科技有限公司 | Control method of intelligent office screen lamp and screen lamp |
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| KR20120053918A (en) * | 2010-11-18 | 2012-05-29 | 삼성엘이디 주식회사 | Lens for par lamp and par lamp including the same |
| CN202371633U (en) * | 2011-12-16 | 2012-08-08 | 成都派斯光学有限公司 | Light distribution lens for illumination and lamp thereof |
| CN202419193U (en) * | 2011-11-26 | 2012-09-05 | 深圳市金流明光电技术有限公司 | LED lamp |
| CN103441178A (en) * | 2013-09-10 | 2013-12-11 | 浙江大学 | Compact double reflection-type photovoltaic condenser based on compound eyes |
| CN103672731A (en) * | 2012-09-05 | 2014-03-26 | 创高国际企业有限公司 | Secondary optical lens |
| CN203605147U (en) * | 2013-09-13 | 2014-05-21 | 东莞市欧科光电科技有限公司 | Concave-surface striped lens |
| CN204648114U (en) * | 2015-04-01 | 2015-09-16 | 深圳市大族元亨光电股份有限公司 | Led lamp cup lens |
-
2015
- 2015-04-01 CN CN201510152883.2A patent/CN104791711B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120053918A (en) * | 2010-11-18 | 2012-05-29 | 삼성엘이디 주식회사 | Lens for par lamp and par lamp including the same |
| CN202419193U (en) * | 2011-11-26 | 2012-09-05 | 深圳市金流明光电技术有限公司 | LED lamp |
| CN202371633U (en) * | 2011-12-16 | 2012-08-08 | 成都派斯光学有限公司 | Light distribution lens for illumination and lamp thereof |
| CN103672731A (en) * | 2012-09-05 | 2014-03-26 | 创高国际企业有限公司 | Secondary optical lens |
| CN103441178A (en) * | 2013-09-10 | 2013-12-11 | 浙江大学 | Compact double reflection-type photovoltaic condenser based on compound eyes |
| CN203605147U (en) * | 2013-09-13 | 2014-05-21 | 东莞市欧科光电科技有限公司 | Concave-surface striped lens |
| CN204648114U (en) * | 2015-04-01 | 2015-09-16 | 深圳市大族元亨光电股份有限公司 | Led lamp cup lens |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382496A (en) * | 2015-08-28 | 2017-02-08 | 中山市德基德克汽车技术有限公司 | Lamp with self-cleaning light exiting surface |
| CN112576947A (en) * | 2020-11-23 | 2021-03-30 | 绍兴盛典光电科技有限公司 | LED cylindrical lamp with TIR lens |
| CN114080074A (en) * | 2021-11-29 | 2022-02-22 | 深圳市博领光电科技有限公司 | Control method of intelligent office screen lamp and screen lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104791711B (en) | 2019-04-02 |
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Inventor after: Liang Kai Inventor after: Mo Jinglin Inventor before: Zhao Yujun Inventor before: Liang Kai Inventor before: Mo Jinglin |
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Address after: 518100, 1st and 6th floors of Building A, 1st and 3rd floors of Building B, and 1st and 2nd floors of Building D, Yongwei Industrial Park, No. 118 Yongfu Road, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Yaham Optoelectronics Co.,Ltd. Country or region after: China Address before: 518000, 1st, 2nd, and 4th floors, Building 4, Dahua Laser Industrial Park, No. 128 Chongqing Road, Fuyong Street, Bao'an District, Shenzhen, Guangdong Province Patentee before: YAHAM OPTOELECTRONICS Co.,Ltd. Country or region before: China |
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