CN105736974A - Light distribution lens and lighting device adopting same - Google Patents
Light distribution lens and lighting device adopting same Download PDFInfo
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- CN105736974A CN105736974A CN201610092690.7A CN201610092690A CN105736974A CN 105736974 A CN105736974 A CN 105736974A CN 201610092690 A CN201610092690 A CN 201610092690A CN 105736974 A CN105736974 A CN 105736974A
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Classifications
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- 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
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- 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
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Abstract
The invention relates to the technical field of optical lenses, in particular to a light distribution lens. A lens body is provided with a central reflection area; at least a part of small-angle light beams is refracted by an incidence area for entering the lens body, then directly irradiates the central reflection area, is reflected to a reflection area through the central reflection area, is reflected to a light exiting area through the reflection area and finally is refracted out of the lens body; at least a part of wide-angle light beams is refracted by the incidence area for entering the lens body, then directly irradiates the reflection area, is reflected to the light exiting area by the reflection area and is finally refracted out of the lens body. According to the light distribution lens, the small-angle light beams and the wide-angle light beams can be respectively controlled, the ability to control the small-angle light beams and the wide-angle light beams can be improved, and the design illumination effect of lens structures can be reliably guaranteed.
Description
Technical field
The present invention relates to optical lens technical field, be specifically related to a kind of light-distribution lens and adopt the illuminator of this light-distribution lens.
Background technology
In lighting technical field, in order to enable the light that light source sends to be distributed according to the needs of people, it is typically required employing various light conversion light is carried out or reflects or reflect or assemble or disperse, so change the propagation path of light, finally give and meet the illumination region that people are actually needed.
In current light conversion, lens are used widely, reason is in that, each side of lens can be used as the reflecting surface of reflection light or as the plane of refraction reflecting light, the relative position of each side is unified, there is good reliability and concordance, and easy to process, manufacture simple.
Due to LED light source have power consumption less, the suitability is strong, stability is high, response time is short, environmentally safe, the advantage such as multicolor luminous, just progressively replace conventional light source, have been widely used for various illumination occasion.In order to meet the demand of different application occasion, the illuminating effect wanted to be obtained, it is necessary to adopt secondary light-distribution element such as lens etc. that source light is carried out sub-distribution again.
Tradition light distribution scheme is the light transmission of core by being sent by light source and high angle scattered light realizes the sub-distribution again to light through the mode that fully reflecting surface reflects, this scheme is more weak for the light control ability of light source center part, so, current lens, design at lens illuminates in region, the optics bore of the more little required lens of output illumination angle is more big, central light strength requires that more high required optics of lens height is more high, adopt in this way, although the control ability of light to light source center part can be improved, but such cost is the increase in material cost, too increase the difficulty of injection moulding in lens manufacturing process and the risk of contraction, it is difficult to ensure that designed illuminating effect.
So, based on above-mentioned, need badly at present and a kind of can improve the light to core and high angle scattered light control ability, reduce optics of lens bore and optical height, and then reduction material cost, reduce injection moulding difficulty and shrink risk, it is ensured that the lens arrangement of design illuminating effect.
Summary of the invention
It is an object of the invention to: exist light and the high angle scattered light control ability of core is weak for current lens, lens arrangement optics bore and optical height are big, cause increasing material cost, it is difficult to ensure that the deficiency of the illuminating effect of design, a kind of light control ability to core that can improve is provided, reduces optics of lens bore and optical height, and then reduce material cost, reduce injection moulding difficulty and shrink risk, it is ensured that the lens arrangement of design illuminating effect.
nullA kind of light-distribution lens，Include lenticular body，Described lenticular body is provided with the incident area entering lens interior for light、Territory, output optical zone for the injection of lens interior light、And it is arranged at the reflector space between incident area and territory, output optical zone，Described lenticular body is additionally provided with foveal reflex region，In light source emits beam，The light of core is low-angle light，The light of light periphery is high angle scattered light，At least some of low-angle light be refracted into lenticular body by incident area after direct irradiation on described foveal reflex region，In foveal reflex regional reflex to reflector space，Territory, output optical zone is reflexed to again by reflector space，Then lenticular body is reflected again，At least some of high angle scattered light be refracted into lenticular body by incident area after direct irradiation on described reflector space，Territory, output optical zone is reflexed to again by reflector space，Then lenticular body is reflected again.
In the such scheme of the application, foveal reflex region is set, at least some of low-angle light be refracted into lenticular body by incident area after direct irradiation on foveal reflex region, in foveal reflex regional reflex to reflector space, territory, output optical zone is reflexed to again by reflector space, then lenticular body is reflected again, at least some of high angle scattered light be refracted into lenticular body by incident area after direct irradiation on reflector space, territory, output optical zone is reflexed to again by reflector space, then lenticular body is reflected again, that is in the light-distribution lens of the application, low-angle light and high angle scattered light are controlled respectively, first it is improve the control ability to low-angle light and high angle scattered light, conveniently design the lens arrangement of different illuminating effect；
On the other hand, by said structure, light source emit beam in the light of core by foveal reflex regional reflex to reflector space, that is, the light of light source center part is not directly reflected away by territory, output optical zone, but need the reflection through foveal reflex region and reflector space, so, flexibly the light of light source center part can be controlled by foveal reflex region and reflector space, and then reduce the situation that bright spot or illumination unevenness occur because the light intensity of light source center part is big；
nullAnd，For LED light source，More existing LED packaged types and fluorescent powder coating mode also can cause the colour temperature of LED light source to change along with the change of rising angle，Especially the light of the polarizers of big angle scope that LED light source sends，Its colour temperature becomes apparent from angle change，Cause easily producing, in illumination region, the phenomenon that color is uneven，Traditional method is usually added compound eye at the exiting surface of light-distribution lens or the exiting surface of lens is made hair side，So can affect the light extraction efficiency of lens，And in the such scheme of the application，High angle scattered light is controlled by the coordination of incident area and reflector space，Make in the lens arrangement of the application，It it is high angle scattered light or low-angle light is all by being reflected lens by territory, output optical zone after reflector space coordinated reflex，And then also reduce illumination region in the possibility that color is uneven occurs；
Another further aspect, enter the light in lens, all reflected by bigbore reflector space, the light path of light is effectively folded, under reaching equal illumination effect premise, it is possible to make that lens are more frivolous, wall thickness is more uniform, while saving lens making material, it is additionally favorable for the technological operations such as injection moulding, reduces injection moulding difficulty and shrink risk, and then the design illuminating effect of lens arrangement can be ensured reliably.
As preferably, territory, described output optical zone is looped around outside described foveal reflex region.
In the such scheme of the application, territory, output optical zone surrounds outside with foveal reflex region, incident area enter the light in lens, all reflected by bigbore reflector space, further improve the control ability of lens on light line, further ensure the design illuminating effect of lens arrangement；
As preferably, described incident area includes the first incident area and the second incident area, and low-angle light is radiated on described foveal reflex region after being entered lenticular body by the first incident area；High angle scattered light is radiated on described reflector space after being entered lenticular body by the second incident area.
In the such scheme of the application, it is set to incident area include the first incident area and the second incident area, the core that light source emits beam, namely low-angle light is radiated on the first incident area, and high angle scattered light is radiated on the second incident area, the low-angle part and the wide-angle part that are emitted beam by light source are refracted into lens respectively through different regions, improve the application lens arrangement control ability to light further.
As preferably, described foveal reflex region is fully reflecting surface.The light being radiated on foveal reflex region is made all to be reflexed on reflector space, the lens directly making the application do not reflect light at the middle part of exit area, further improve the control ability of lens on light line, also further ensure that the uniformity in illumination region.
As preferably, described first incident area is deviate from the protruding taper surface in described foveal reflex region or curved surface.
In such scheme, it is set to the first incident area deviate from the protruding taper surface in foveal reflex region or curved surface, further improves first incident area control adjustment capability to low-angle light.
As preferably, described reflector space includes being the first reflector space and the second reflector space that hierarchic structure is arranged, described first reflector space is near incident area, described second reflector space is near territory, output optical zone, low-angle light is by described foveal reflex regional reflex to described second reflector space, then is reflexed to exit area by the second reflector space；After high angle scattered light is refracted into lenticular body by the second incident area, it is radiated on the first reflector space, then is reflexed to exit area by the first reflector space.
In such scheme, reflector space includes the first reflector space and the second reflector space, the low-angle light and high angle scattered light entering lens is controlled respectively, improves the lens arrangement control ability to light further, further ensure the design illuminating effect of lens arrangement.
As preferably, described foveal reflex region is free form surface or the scale face spliced successively by multiple free form surfaces or overlap.
As preferably, described first incident area and/or the second incident area are free form surface or the scale face spliced successively by multiple free form surfaces or overlap.
In such scheme, by foveal reflex region and/or the first incident area and/or the second incident area, it is set to free form surface or the scale face spliced successively by multiple free form surfaces or overlap, the convenient light to the different parts on regional coordinates control, further improves the light control ability of lens arrangement；And will above-mentioned each region be set to by multiple scale faces that freely bent region forms, scale face will be radiated at ray difference thereon integration again, while improving the light control ability of lens arrangement, also there is the effect of even light, make be there emerged a light by the refraction of territory, output optical zone more uniform, further ensure the design illuminating effect of lens.
As preferably, territory, described output optical zone is free form surface, spliced successively by multiple free form surfaces or overlapping scale face, by some microlens arrays formed complex-curved in one.
In such scheme, territory, output optical zone is set to free form surface, spliced successively by multiple free form surfaces or overlapping scale face, by some microlens arrays formed complex-curved in one, first it is to make lens illumination region more uniform, it is possible to be more actually needed the light spot shape that it is square or elongated that illumination region is adjusted to.
Disclosed herein as well is a kind of illuminator, adopt above-mentioned light-distribution lens to carry out luminous intensity distribution.
The illuminator of the application, adopts above-mentioned light-distribution lens to carry out luminous intensity distribution, is first can ensure that good illuminating effect；Simultaneously as light-distribution lens can adopt less optical height and optics bore, reduce the manufacturing cost of light-distribution lens, so also reducing the installation cost of illuminator；Another further aspect, is also due to light-distribution lens and can adopt less volume, so, it is also possible to reduce the assembly difficulty of light-distribution lens, reduce the physical dimension of illuminator, and then further reduce manufacturing cost and the scope of application of illuminator.
In sum, owing to have employed technique scheme, the application provides the benefit that:
1, low-angle light and high angle scattered light are controlled by the light-distribution lens of the application respectively, be first improve the control ability to low-angle light and high angle scattered light, conveniently design the lens arrangement of different illuminating effect；
2, the light of light source center part is not directly reflected away by territory, output optical zone, but need the reflection through foveal reflex region and reflector space, so, flexibly the light of light source center part can be controlled by foveal reflex region and reflector space, and then reduce the situation that bright spot or illumination unevenness occur because the light intensity of light source center part is big；
3, in the lens arrangement of the application, it is high angle scattered light or low-angle light is all by being reflected lens by territory, output optical zone after reflector space coordinated reflex, and then also reduce in illumination region the possibility that color is uneven occurs；
4, under reaching equal illumination effect premise, can make that lens are more frivolous, wall thickness is more uniform, saving while lens make material, be additionally favorable for the technological operations such as injection moulding, reduce injection moulding difficulty and shrink risk, and then the design illuminating effect of lens arrangement can be ensured reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of the application lens；
Fig. 2 is the light path schematic diagram of Fig. 1 lens arrangement；
Fig. 3 is reflector space is the lens arrangement in the scale group region being spliced into successively by multiple free form surfaces；
Fig. 4 is the complex-curved lens arrangement schematic diagram that territory, output optical zone is formed by some microlens arrays,
Labelling in figure: 1-lenticular body, territory, 2-output optical zone, 3-foveal reflex region, 4-reflector space, 5-the first incident area, 6-the second incident area, 7-incident area, 8-the first reflector space, 9-the second reflector space, 10-lenticule.
Detailed description of the invention
Lower region is in conjunction with accompanying drawing, and the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1: as Figure 1-4,
nullA kind of LED light-distribution lens，Include lenticular body 1，Described lenticular body 1 is provided with the incident area 7 entering lens interior for light、Territory, output optical zone 2 for the injection of lens interior light、And it is arranged at the reflector space 4 between incident area 7 and territory, output optical zone 2，Described lenticular body 1 is additionally provided with foveal reflex region 3，In light source emits beam，The light of core is low-angle light，The light of light periphery is high angle scattered light，At least some of low-angle light be refracted into lenticular body 1 by incident area 7 after direct irradiation on described foveal reflex region 3，Reflex on reflector space 4 through foveal reflex region 3，Territory, output optical zone 2 is reflexed to again by reflector space 4，Then lenticular body 1 is reflected again，At least some of high angle scattered light be refracted into lenticular body 1 by incident area 7 after direct irradiation on described reflector space 4，Territory, output optical zone 2 is reflexed to again by reflector space 4，Then lenticular body 1 is reflected again.
In the such scheme of the present embodiment, foveal reflex region 3 is set, at least some of low-angle light be refracted into lenticular body 1 by incident area 7 after direct irradiation on foveal reflex region 3, reflex on reflector space 4 through foveal reflex region 3, territory, output optical zone 2 is reflexed to again by reflector space 4, then lenticular body 1 is reflected again, at least some of high angle scattered light be refracted into lenticular body 1 by incident area 7 after direct irradiation on reflector space 4, territory, output optical zone 2 is reflexed to again by reflector space 4, then lenticular body 1 is reflected again, that is in the light-distribution lens of the present embodiment, low-angle light and high angle scattered light are controlled respectively, first it is improve the control ability to low-angle light and high angle scattered light, conveniently design the lens arrangement of different illuminating effect；
On the other hand, by said structure, light source emit beam in the light of core reflexed on reflector space 4 by foveal reflex region 3, that is, the light of light source center part is not directly reflected away by territory, output optical zone 2, but need the reflection through foveal reflex region 3 and reflector space 4, so, flexibly the light of light source center part can be controlled by foveal reflex region 3 and reflector space 4, and then reduce the situation that bright spot or illumination unevenness occur because the light intensity of light source center part is big；
nullAnd，For LED light source，More existing LED packaged types and fluorescent powder coating mode also can cause the colour temperature of LED light source to change along with the change of rising angle，Especially the light of the polarizers of big angle scope that LED light source sends，Its colour temperature becomes apparent from angle change，Cause easily producing, in illumination region, the phenomenon that color is uneven，Traditional method is usually added compound eye at the exiting surface of light-distribution lens or the exiting surface of lens is made hair side，So can affect the light extraction efficiency of lens，And in the such scheme of the present embodiment，High angle scattered light is controlled by the coordination of incident area 7 and reflector space 4，Make in the lens arrangement of the present embodiment，It it is high angle scattered light or low-angle light is all by being reflected lens by territory, output optical zone 2 after reflector space 4 coordinated reflex，And then also reduce illumination region in the possibility that color is uneven occurs；
Another further aspect, enter the light in lens, all reflected by bigbore reflector space 4, the light path of light is effectively folded, under reaching equal illumination effect premise, it is possible to make that lens are more frivolous, wall thickness is more uniform, while saving lens making material, it is additionally favorable for the technological operations such as injection moulding, reduces injection moulding difficulty and shrink risk, and then the design illuminating effect of lens arrangement can be ensured reliably.
In the present embodiment, it is preferred that territory, described output optical zone 2 is looped around outside described foveal reflex region 3.
In the such scheme of the present embodiment, territory, output optical zone 2 surrounds outside with foveal reflex region 3, the light in lens is entered by incident area 7, all reflected by bigbore reflector space 4, further improve the control ability of lens on light line, further ensure the design illuminating effect of lens arrangement；
Embodiment 2, as Figure 1-4,
Described incident area 7 includes the first incident area 5 and the second incident area 6, and low-angle light is radiated on described foveal reflex region 3 after being entered lenticular body 1 by the first incident area 5；High angle scattered light is radiated on described reflector space 4 after being entered lenticular body 1 by the second incident area 6.
In the such scheme of the present embodiment, it is set to incident area 7 include the first incident area 5 and the second incident area 6, the core that light source emits beam, namely low-angle light is radiated on the first incident area 5, and high angle scattered light is radiated on the second incident area 6, the low-angle part and the wide-angle part that are emitted beam by light source are refracted into lens respectively through different regions, improve the present embodiment lens arrangement control ability to light further.
In the present embodiment, it is preferred that described foveal reflex region 3 is fully reflecting surface.The light being radiated on foveal reflex region 3 is made all to be reflexed on reflector space 4, the lens directly making the present embodiment do not reflect light at the middle part of exit area, further improve the control ability of lens on light line, also further ensure that the uniformity in illumination region.
Preferably, described first incident area 5 is the taper surface or the curved surface that deviate from described foveal reflex region 3 projection.
In such scheme, the first incident area 5 is set to deviate from taper surface or the curved surface of foveal reflex region 3 projection, further improves the first incident area 5 control adjustment capability to low-angle light.
Embodiment 3, as Figure 1-4,
Described reflector space 4 includes the first reflector space 8 and the second reflector space 9 arranged in hierarchic structure, described first reflector space 8 is near incident area 7, described second reflector space 9 is near territory, output optical zone 2, low-angle light is reflexed on described second reflector space 9 by described foveal reflex region 3, then is reflexed to exit area by the second reflector space 9；After high angle scattered light is refracted into lenticular body 1 by the second incident area 6, it is radiated on the first reflector space 8, then is reflexed to exit area by the first reflector space 8.
In such scheme, reflector space 4 includes the first reflector space 8 and the second reflector space 9, the low-angle light and high angle scattered light entering lens is controlled respectively, improves the lens arrangement control ability to light further, further ensure the design illuminating effect of lens arrangement.
In the present embodiment, it is preferred that described foveal reflex region 3 is free form surface or the scale face spliced successively by multiple free form surfaces or overlap.
In the present embodiment, it is preferred that described first incident area 5 and/or the second incident area 6 are free form surface or the scale face spliced successively by multiple free form surfaces or overlap.
In such scheme, by foveal reflex region 3 and/or the first incident area 5 and/or the second incident area 6, it is set to free form surface or the scale face spliced successively by multiple free form surfaces or overlap, the convenient light to the different parts on regional coordinates control, further improves the light control ability of lens arrangement；And will above-mentioned each region be set to by multiple scale faces that freely bent region forms, scale face will be radiated at ray difference thereon integration again, while improving the light control ability of lens arrangement, also there is the effect of even light, make be there emerged a light by territory, output optical zone 2 refraction more uniform, further ensure the design illuminating effect of lens.
In the present embodiment, it is preferred that territory, described output optical zone 2 is free form surface, spliced successively by multiple free form surfaces or overlapping scale face, by some lenticule 10 arrays formed complex-curved in one.
In such scheme, territory, output optical zone 2 is set to free form surface, spliced successively by multiple free form surfaces or overlapping scale face, by some lenticule 10 arrays formed complex-curved in one, first it is to make lens illumination region more uniform, it is possible to be more actually needed the light spot shape that it is square or elongated that illumination region is adjusted to.
Embodiment 4, as Figure 1-4,
A kind of illuminator, adopts above-mentioned light-distribution lens to carry out luminous intensity distribution.
The illuminator of the present embodiment, adopts above-mentioned light-distribution lens to carry out luminous intensity distribution, is first can ensure that good illuminating effect；Simultaneously as light-distribution lens can adopt less optical height and optics bore, reduce the manufacturing cost of light-distribution lens, so also reducing the installation cost of illuminator；Another further aspect, is also due to light-distribution lens and can adopt less volume, so, it is also possible to reduce the assembly difficulty of light-distribution lens, reduce the physical dimension of illuminator, and then further reduce manufacturing cost and the scope of application of illuminator.
All any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (10)
1. light-distribution lens, include lenticular body, described lenticular body is provided with for light enter lens interior incident area, for lens interior light injection territory, output optical zone and be arranged at the reflector space between incident area and territory, output optical zone, it is characterized in that: described lenticular body is additionally provided with foveal reflex region
In light source emits beam, the light of core is low-angle light, and the light of light periphery is high angle scattered light,
At least some of low-angle light be refracted into lenticular body by incident area after direct irradiation on described foveal reflex region, in foveal reflex regional reflex to reflector space, then reflexed to territory, output optical zone by reflector space, then reflect lenticular body again,
At least some of high angle scattered light be refracted into lenticular body by incident area after direct irradiation on described reflector space, then reflexed to territory, output optical zone by reflector space, then reflect lenticular body again.
2. lens according to claim 1, it is characterised in that: described incident area includes the first incident area and the second incident area,
Low-angle light is radiated on described foveal reflex region after being entered lenticular body by the first incident area；
High angle scattered light is radiated on described reflector space after being entered lenticular body by the second incident area.
3. light-distribution lens according to claim 2, it is characterised in that: described foveal reflex region is fully reflecting surface.
4. light-distribution lens according to claim 2, it is characterised in that: described first incident area is deviate from the protruding taper surface in described foveal reflex region or curved surface.
5. light-distribution lens according to claim 2, it is characterised in that: described reflector space include be hierarchic structure arrange the first reflector space and the second reflector space, described first reflector space near incident area, described second reflector space near territory, output optical zone,
Low-angle light is by described foveal reflex regional reflex to described second reflector space, then is reflexed to exit area by the second reflector space；
After high angle scattered light is refracted into lenticular body by the second incident area, it is radiated on the first reflector space, then is reflexed to exit area by the first reflector space.
6. the light-distribution lens according to any one of claim 1-5, it is characterised in that: described foveal reflex region is free form surface or the scale face spliced successively by multiple free form surfaces or overlap.
7. the light-distribution lens according to claim 2-5 any one, it is characterised in that: described first incident area and/or the second incident area are free form surface or the scale face spliced successively by multiple free form surfaces or overlap.
8. the light-distribution lens according to claim 3-7 any one, it is characterised in that: territory, described output optical zone is free form surface, spliced successively by multiple free form surfaces or overlapping scale face, by some microlens arrays formed complex-curved in one.
9. the light-distribution lens according to any one of claim 2-8, it is characterised in that: described lenticule is square microlens or hexagon lenticule or cylindrical microlenses.
10. an illuminator, it is characterised in that: include the light-distribution lens as described in claim 1-9 any one.
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| CN201610092690.7A CN105736974A (en) | 2016-02-19 | 2016-02-19 | Light distribution lens and lighting device adopting same |
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| CN115289434A (en) * | 2022-07-15 | 2022-11-04 | 苏州欧普照明有限公司 | Lens and lighting lamp |
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| CN107606585A (en) * | 2017-11-01 | 2018-01-19 | 安徽芯瑞达科技股份有限公司 | A kind of new refraction type projection lens |
| CN109282245B (en) * | 2018-10-26 | 2024-04-30 | 成都恒坤光电科技有限公司 | Combined lens and lamp adopting same |
| CN109282245A (en) * | 2018-10-26 | 2019-01-29 | 成都恒坤光电科技有限公司 | A kind of compound lens and the lamps and lanterns using the compound lens |
| CN111197723A (en) * | 2018-11-19 | 2020-05-26 | 常州星宇车灯股份有限公司 | LED bulb socket signal lamp for automobile |
| CN111197723B (en) * | 2018-11-19 | 2025-01-21 | 常州星宇车灯股份有限公司 | A LED bulb holder signal light for automobile |
| CN109519870A (en) * | 2018-12-28 | 2019-03-26 | 马瑞利汽车零部件(芜湖)有限公司 | Realize the optical system of uniformly light-emitting |
| CN109519870B (en) * | 2018-12-28 | 2024-11-08 | 马瑞利汽车零部件(芜湖)有限公司 | Optical system for uniform light emission |
| CN114599913A (en) * | 2019-10-28 | 2022-06-07 | 昕诺飞控股有限公司 | Color mixing using total internal reflectors and annular reflectors |
| CN114623398A (en) * | 2021-11-18 | 2022-06-14 | 欧普照明股份有限公司 | Optical system, optical system design method and lamp |
| CN115289434A (en) * | 2022-07-15 | 2022-11-04 | 苏州欧普照明有限公司 | Lens and lighting lamp |
| CN114963126A (en) * | 2022-07-28 | 2022-08-30 | 杭州海康威视数字技术股份有限公司 | Collimating lens and security equipment |
| CN116518330A (en) * | 2023-06-20 | 2023-08-01 | 山东新华医疗器械股份有限公司 | Optical lens, lighting device and operating lamp |
| CN119934462A (en) * | 2025-04-07 | 2025-05-06 | 深圳智岩科技股份有限公司 | A lighting device |
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