CN109611781B - Car light low beam lighting optical device and car head-light assembly - Google Patents
Car light low beam lighting optical device and car head-light assembly Download PDFInfo
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- CN109611781B CN109611781B CN201910099642.4A CN201910099642A CN109611781B CN 109611781 B CN109611781 B CN 109611781B CN 201910099642 A CN201910099642 A CN 201910099642A CN 109611781 B CN109611781 B CN 109611781B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 238000005286 illumination Methods 0.000 claims abstract description 68
- 230000003595 spectral effect Effects 0.000 claims abstract description 57
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000011156 evaluation Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 17
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to the technical field of car lamp illumination, in particular to a car lamp low beam illumination optical device and a car headlamp assembly, which comprise a reflecting cover and a spectral reflector which are matched with a light source, wherein a light emitting area of the light source and the spectral reflector are positioned in or below the reflecting cover; a part of light rays emitted by the light source directly irradiate on the reflecting cover, and a part of light rays directly irradiate on the spectral reflector; the reflecting cover reflects light rays directly from the light source and also reflects reflected light rays from the spectral reflector. The low beam illumination optical device can improve the light energy utilization rate, increase the design freedom degree due to the introduction of the spectral reflector, flexibly control the projection distribution of light rays and be beneficial to meeting the requirements of low beam illumination.
Description
Technical Field
The invention relates to the technical field of car lamp illumination, in particular to a car lamp low beam illumination optical device and a car headlamp assembly.
Background
In the technical field of car light illumination, in order to realize different illumination of different driving environments, the current illumination lamp generally comprises high beam illumination and low beam illumination, and the high beam illumination has a wide illumination range and a long illumination distance, so that a relatively wide visible area can be improved for a driver, however, the problem of the wide illumination range and the long illumination distance can possibly cause adverse effects on normal running of other vehicles, so that a low beam structure with smaller illumination range and smaller illumination distance is introduced into an illumination device of the vehicle, and the normal running of the vehicle under the environment with poor illumination conditions is ensured through switching and matching use between the high beam illumination and the low beam illumination.
In the present dipped headlight, light emitted from a light source is distributed again mainly through an optical component, and a current common practice is to provide a light blocking component on a light transmission path, and form a lighting pattern meeting requirements in a lighting area, namely, a lighting area with a cut-off line meeting requirements through blocking of part of light.
Although, in the current car lamp structure, the above-mentioned blocking of the light can form a dipped headlight illumination area meeting the illumination requirement with a cut-off line, because part of the light emitted by the light source is blocked, the light energy loss is also caused to a certain extent, and the light energy utilization rate of the car lamp is reduced.
Therefore, there is a need to design a lamp structure capable of improving the light energy utilization rate of the lamp.
Disclosure of Invention
The invention aims at: aiming at the defect that the light energy utilization rate of the existing car lamp is not high, the car lamp structure capable of achieving the car lamp light energy utilization rate is provided.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The low beam lighting optical device for the car lamp comprises a reflecting cover and a spectral reflector which are matched with a light source, wherein the light emitting area of the light source and the spectral reflector are positioned in or below the reflecting cover; a part of light rays emitted by the light source directly irradiate on the reflecting cover, and a part of light rays directly irradiate on the spectral reflector; the reflecting cover reflects light rays directly from the light source and also reflects reflected light rays from the spectral reflector.
In the low beam illumination optical device, all or part of light rays emitted by a light source are reflected by the combination of the reflecting cover and the light splitting reflector and then are irradiated to the projection device of the car lamp, such as a projection lens, and a low beam illumination pattern with a cut-off line is formed after the light rays are projected by the projection device; in addition, the introduction of the reflecting beam splitter increases the design freedom of the car lamp, can flexibly control the projection distribution of light rays, and is more convenient for the low beam illumination area to meet the design requirement.
The luminous area and the spectral reflector of the light source are both positioned in or below the reflecting cover, one part of light emitted by the light source directly irradiates on the reflecting cover, the other part of light directly irradiates on the spectral reflector, and all light emitted by the light source is reflected by the combination of the reflecting cover and the spectral reflector and is projected by the projection device to be used as effective illumination light in the low beam illumination area, so that the light energy utilization rate of the car lamp is further improved.
Preferably, the spectral reflector is provided with a contour of a specific shape, and the projection shape of the contour of the specific shape in the low beam evaluation field is similar to or the same as the required cutoff line of the low beam of the vehicle lamp. The presence of the contoured profile, when mated with the projection device, at or near the focal plane of the projection device ensures that a clear illumination pattern with a cutoff line is formed in the lamp illumination area.
Preferably, the beam splitter blocks the light rays directly from the light source from going forward in a reflection separation mode, a clear blocking boundary exists, and the boundary contour of the light splitter, which is received from the light source and is positioned in a region with larger light intensity, is similar or identical to the cut-off line required by the low beam of the car light through the projection device in the projection shape of the low beam evaluation field. In the method, the light from the light source is blocked by the light splitting reflector in a reflection and separation mode, namely, the light is reflected to different directions at the position to form a blocking boundary line, and the blocking boundary line forms a cut-off line after being projected by the projection device, so that the light control capability of the light splitting reflector is further improved, the degree of freedom of the design of the vehicle lamp is further increased, in practical application, the light reflected to different directions can be controlled according to practical requirements, for example, the light is reflected to the projection device to participate in illumination work, and the light utilization rate is improved.
Preferably, the beam splitter blocks the light beam directly from the light source from going forward in a mode of partially reflecting and separating and partially absorbing, a clear blocking boundary exists, and the boundary contour of the beam splitter, which is received from the light source and is positioned in a region with larger light intensity, is similar or identical to the cut-off line required by the low beam of the car light through the projection device in the projection shape of the low beam evaluation field. In the method, the spectral reflector absorbs part of light and reflects part of light to form a blocking boundary line, and the blocking boundary line forms a cut-off line after being projected by the projection device, so that the light control capability of the spectral reflector is further improved, the degree of freedom of the design of the vehicle lamp is further increased, in actual application, different light control can be performed according to actual needs, for example, light which is not well controlled can be absorbed, and the applicability of the light device is improved.
Preferably, part of the light emitted by the light source is directly incident on the reflecting cover to be reflected, wherein part of the light is reflected by the light splitting reflector or the light splitting reflector and the reflecting cover in a plurality of combinations and then projected to the low beam illumination field by the projection device.
Preferably, part of the light rays emitted by the light source are directly incident on the spectral reflector and reflected to the reflector, and after secondary reflection by the reflector, part of the light rays are projected to the low-beam illumination field through the projection device.
Preferably, part of the light rays emitted by the light source are directly incident on the light splitting reflector and reflected to the reflector, after being reflected by the reflector for the second time, part of the light rays return to the surface of the light splitting reflector again for tertiary reflection, and finally are projected to the low-beam illumination field through the projection device.
Through the mode, the light can be controlled in various modes, the light control capability is further improved, and good lighting effects are formed.
Preferably, the surface of the spectral reflector, which directly receives the light source irradiation and blocks the light from going forward, is a single continuous surface or a discrete spliced surface. In practical design, the required surface type can be selected, for example, when a single continuous surface is adopted, the processing work can be greatly facilitated, and when a discrete splicing surface is adopted, the uniformity of light energy distribution in an illumination area can be greatly improved.
Preferably, the surface of the spectral reflector, which directly receives the light emitted by the light source and blocks the light from going forward, has light reflecting capability or is coated with a reflecting film layer. In the present embodiment, the reflection region for reflecting light is formed on the spectral reflector by plating or using a material having a light-emitting capability.
Preferably, the light rays which do not block the forward direction at the spectral reflector reach the projection device directly, or reach the projection device after passing through air, or reach the projection lens through a transparent medium with a refractive index greater than 1. That is, the spectral reflector of the present application may be integrated with the projection device, may be spaced apart from the projection lens, or may be connected to the projection lens through another transparent medium.
Preferably, after a part of the light emitted by the light source is directly irradiated onto the reflector and reflected, most of the light is directly projected onto the low beam illumination field by the projection device, so as to form a main illumination area below the low beam cutoff and a required cutoff of the low beam.
Preferably, the boundary line on the spectral reflector, which blocks the passage of light, is located at or near the focal plane of the projection device. Thus, a clear cut-off line is advantageously formed.
The application also discloses an automobile headlamp assembly adopting the automobile lamp low beam lighting optical device, which comprises a light source, a projection device and the automobile lamp low beam lighting optical device matched with the light source and the projection device.
The automobile headlamp assembly adopts the low beam illumination optical device, so that on one hand, the light energy utilization rate is improved, and on the other hand, the degree of freedom of the light distribution design of the headlamp is also improved, and the illumination effect of the headlamp is improved.
In summary, due to the adoption of the technical scheme, the beneficial effects of the application are as follows:
In the low beam illumination optical device, all or part of light rays emitted by a light source are reflected by the combination of the reflecting cover and the light splitting reflector and then are irradiated to the projection device of the car lamp, such as a projection lens, and a low beam illumination pattern with a cut-off line is formed after the light rays are projected by the projection device; in addition, due to the introduction of the reflecting beam splitter, the design freedom of the car lamp is increased, the projection distribution of light rays can be flexibly controlled, and the design requirement of a low-beam illumination area can be met more conveniently;
The automobile headlamp assembly adopts the low beam illumination optical device, so that on one hand, the light energy utilization rate is improved, and on the other hand, the degree of freedom of the light distribution design of the headlamp is also improved, and the illumination effect of the headlamp is improved.
Drawings
FIG. 1 is a schematic view of the light path of an automotive headlamp assembly;
figure 2 is a schematic view of the structure of the spectral reflector in cooperation with the projection device and the light source after removal of the reflector,
The marks in the figure: 1-light source, 2-reflecting cover, 3-spectral reflector, 4-projection device.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1, as shown in fig. 1 and 2:
the low beam lighting optical device of the car light comprises a reflecting cover 2 and a spectral reflector 3 which are matched with a light source 1, wherein a light emitting area of the light source 1 and the spectral reflector 3 are positioned in or below the reflecting cover 2; a part of the light rays emitted by the light source 1 directly irradiate on the reflecting cover 2, and a part of the light rays directly irradiate on the spectral reflector 3; the reflecting cover 2 reflects both light rays directly from the light source 1 and reflected light rays from the spectral reflector 3.
In the low beam illumination optical device of the application, the light emitted by the light source 1 is totally or partially reflected by the combination of the reflecting cover 2 and the spectral reflector 3 and then irradiates to the projection device 4 of the car lamp, such as a projection lens, and forms a low beam illumination pattern with a cut-off line after being projected by the projection device 4; in addition, the introduction of the reflecting beam splitter increases the design freedom of the car lamp, can flexibly control the projection distribution of light rays, and is more convenient for the low beam illumination area to meet the design requirement.
The light-emitting area of the light source 1 and the spectral reflector 3 are both positioned in or below the reflecting cover 2, a part of light emitted by the light source 1 directly irradiates on the reflecting cover, another part directly irradiates on the spectral reflector 3, and all light emitted by the light source 1 is reflected by the combination of the reflecting cover and the spectral reflector 3 and is projected by the projection device 4 to be used as effective illumination light in a low-beam illumination area, so that the light energy utilization rate of the car lamp is further improved.
In a preferred embodiment, the spectral reflector 3 is provided with a contour of a specific shape, the projected shape of which in the low beam evaluation field by the projection device 4 is similar or identical to the required cutoff line of the low beam of the vehicle lamp. The presence of the contour of the specific profile, which is located at or near the focal plane of the projection device 4 when mated with the projection device 4, ensures that a clear illumination pattern with a cut-off line is formed in the lamp illumination area.
In a preferred embodiment, the spectral reflector 3 blocks the light beam directly from the light source 1 from going forward by means of reflection separation, and has a clear blocking boundary, and the boundary contour in the area where the spectral reflector 3 receives the light beam from the light source 1 and the light density is large is similar or identical to the cut-off line required by the low beam of the vehicle lamp through the projection device 4 in the projection shape of the low beam evaluation field. In this way, the light from the light source 1 is blocked by the spectral reflector 3 in a reflection and separation manner, that is, the light is reflected to different directions at the position to form a blocking boundary line, and the blocking boundary line forms a cut-off line after being projected by the projection device 4, so that the light control capability of the spectral reflector 3 is further improved, the degree of freedom of the design of the vehicle lamp is further increased, and in practical application, the light reflected to different directions can be controlled according to practical needs, for example, the light is reflected to the projection device 4 to participate in illumination work, so that the light utilization rate is improved.
In a preferred embodiment, the spectral reflector 3 blocks the light beam directly from the light source 1 from going forward by means of partial reflection and separation and partial absorption, and has a clear blocking limit, and the outline of the limit on the spectral reflector 3 in the area where the light beam intensity is large and the projection shape of the projection device 4 in the low beam evaluation field is similar to or the same as the required cutoff line of the low beam of the vehicle lamp. In this way, the spectral reflector 3 absorbs part of the light and reflects part of the light, so as to form a blocking boundary line, and the blocking boundary line forms a cut-off line after being projected by the projection device 4, so that the light control capability of the spectral reflector 3 is further improved, the degree of freedom of the design of the vehicle lamp is further increased, and in practical application, the light can be controlled differently according to practical requirements, for example, the light which is not well controlled can be absorbed, and the applicability of the light device is improved.
In a preferred embodiment, a part of the light emitted by the light source 1 is directly incident on the reflecting cover 2 and reflected, wherein a part of the light is reflected by the dichroic reflector 3 or the dichroic reflector 3 and the reflecting cover 2 in a plurality of combinations and then projected to the low beam illumination field by the projection device 4.
As a preferred embodiment, a part of the light rays emitted by the light source 1 directly enter the spectral reflector 3 and are reflected to the reflecting cover, and after being reflected by the reflecting cover 2 for the second time, a part of the light rays are projected to the low beam illumination field through the projection device 4.
As a preferred embodiment, a part of the light emitted by the light source 1 is directly incident on the spectral reflector 3 and reflected to the reflecting cover, after being reflected by the reflecting cover 2 for the second time, a part of the light returns to the surface of the spectral reflector 3 again for the third time, and finally is projected to the low beam illumination field by the projection device 4.
Through the mode, the light can be controlled in various modes, the light control capability is further improved, and good lighting effects are formed.
As a preferred embodiment, the surface of the spectral reflector 3 that directly receives the light from the light source 1 and blocks the light from traveling is a single continuous surface or a discrete spliced surface. In practical design, the required surface type can be selected, for example, when a single continuous surface is adopted, the processing work can be greatly facilitated, and when a discrete splicing surface is adopted, the uniformity of light energy distribution in an illumination area can be greatly improved.
In a preferred embodiment, the spectral reflector 3 is made of a material having a reflective capability or a reflective film coated on a surface that directly receives the light emitted from the light source 1 and blocks the light from traveling. In the present embodiment, a reflection region for reflecting light is formed on the spectral reflector 3 by plating or using a material having a light-emitting capability.
As a preferred way, the light rays which do not block the forward direction at the spectral reflector 3 reach the projection device 4 directly, or reach the projection device 4 after passing through air, or reach the projection lens through a transparent medium with a refractive index greater than 1. That is, the spectral reflector 3 of the present application may be integrated with the projection device 4, may be spaced apart from the projection lens, or may be connected to the projection lens through another transparent medium.
In a preferred manner, after a part of the light emitted by the light source 1 is directly irradiated onto the reflecting cover 2 and reflected, most of the light is directly projected onto the low beam illumination field by the projection device 4, so as to form a main illumination area below the low beam cutoff and a required cutoff of the low beam.
As a preferred embodiment, the boundary line on the spectral reflector 3, which blocks the passage of light, is located at or near the focal plane of the projection device 4. Thus, a clear cut-off line is advantageously formed.
Example 2, as shown in figures 1 and 2,
An automobile headlamp assembly adopting the automobile lamp low beam lighting optical device comprises a light source 1, a projection device 4 and the automobile lamp low beam lighting optical device matched with the light source 1 and the projection device 4.
The automobile headlamp assembly adopts the low beam illumination optical device, so that on one hand, the light energy utilization rate is improved, and on the other hand, the degree of freedom of the light distribution design of the headlamp is also improved, and the illumination effect of the headlamp is improved.
The above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present invention; all technical solutions and modifications thereof that do not depart from the spirit and scope of the invention are intended to be covered by the scope of the appended claims.
Claims (2)
1. The low beam lighting optical device for the car lamp is characterized by comprising a reflecting cover and a spectral reflector, wherein the reflecting cover and the spectral reflector are matched with a light source, and a light emitting area of the light source and the spectral reflector are positioned in or below the reflecting cover; a part of light rays emitted by the light source directly irradiate on the reflecting cover, and a part of light rays directly irradiate on the spectral reflector;
The reflecting cover reflects light rays directly from the light source and also reflects reflected light rays from the spectral reflector;
The light splitting reflector is provided with a contour with a specific shape, the projection shape of the contour with the specific shape in a low beam evaluation field is similar to or the same as the required cutoff line of the low beam of the car lamp through the projection device, and when the contour with the specific shape is matched with the projection device, the contour with the specific shape is positioned on or near the focal plane of the projection device, and the existence of the contour with the specific shape ensures that a clear illumination pattern with the cutoff line is formed in the illumination area of the car lamp;
The light-splitting reflector is used for blocking light rays from the light source to move forwards in a reflection separation mode, blocking boundary lines are formed in a mode of reflecting the light rays to different directions, the blocking boundary lines form a bright-dark cut-off line after being projected by the projection device, the boundary line outline of the light-splitting reflector, which is received from the light source and is positioned in a region with larger light intensity, is approximately or same as the bright-dark cut-off line required by the vehicle lamp low beam through the projection device in the projection shape of a low beam evaluation field, the surface of the light-splitting reflector, which is directly irradiated by the light source and blocks the light rays from moving forwards, is a single continuous surface or a discrete splicing surface, and the material of the surface, which is directly irradiated by the light source and blocks the light rays from moving forwards, has light reflection capability, or a plated reflection film layer forms a reflection region for reflecting the light rays on the light-splitting reflector;
Part of light rays emitted by the light source are directly incident on the spectral reflector and reflected to the reflector, after being secondarily reflected by the reflector, part of the light rays are projected to the low beam illumination field through the projection device, part of the light rays return to the surface of the spectral reflector again for tertiary reflection, and finally are projected to the low beam illumination field through the projection device; part of light rays emitted by the light source are directly incident on the reflecting cover to be reflected, wherein part of the light rays are reflected by the light dividing reflector and then projected to a low-beam illumination field through the projection device;
All light rays emitted by the light source are reflected by the combination of the reflecting cover and the spectral reflector, and are projected by the projection device to be used as effective illumination light rays in a low-beam illumination area.
2. An automotive headlamp assembly comprising a light source, a projection device and the low beam lighting optic of claim 1 in cooperation with the light source and the projection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099642.4A CN109611781B (en) | 2019-01-31 | 2019-01-31 | Car light low beam lighting optical device and car head-light assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099642.4A CN109611781B (en) | 2019-01-31 | 2019-01-31 | Car light low beam lighting optical device and car head-light assembly |
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| Publication Number | Publication Date |
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| CN109611781A CN109611781A (en) | 2019-04-12 |
| CN109611781B true CN109611781B (en) | 2024-07-09 |
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| CN201910099642.4A Active CN109611781B (en) | 2019-01-31 | 2019-01-31 | Car light low beam lighting optical device and car head-light assembly |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109973930B (en) * | 2019-05-08 | 2024-03-19 | 成都恒坤光电科技有限公司 | Car light low beam lighting spectral reflector, optical device and car head-light assembly |
| CN110906282A (en) * | 2020-01-02 | 2020-03-24 | 北京理工大学重庆创新中心 | Lamp with variable color temperature and color based on optical light collector |
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| CN107013868A (en) * | 2017-06-07 | 2017-08-04 | 成都恒坤光电科技有限公司 | A kind of distance-light integral type car light |
| CN209245970U (en) * | 2019-01-31 | 2019-08-13 | 成都恒坤光电科技有限公司 | A kind of car light lower beam illumination Optical devices and vehicle front lighting lamp assembly |
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| DE202007001829U1 (en) * | 2007-02-08 | 2007-06-06 | Schefenacker Vision Systems Germany Gmbh | Low beam headlight for motor vehicle, has primary and secondary lenses, where Z-shape generation takes place by bundling primary and secondary lens segments that project edge segment with Z-shape from light bundle cross section of LED |
| JP2010000957A (en) * | 2008-06-20 | 2010-01-07 | Koito Mfg Co Ltd | Headlight device for vehicle |
| JP5544676B2 (en) * | 2009-06-04 | 2014-07-09 | スタンレー電気株式会社 | Vehicle headlamp |
| JP5423159B2 (en) * | 2009-06-04 | 2014-02-19 | スタンレー電気株式会社 | Vehicle lighting |
| JP5438405B2 (en) * | 2009-07-10 | 2014-03-12 | 株式会社小糸製作所 | Vehicle headlamp device |
| JP5592154B2 (en) * | 2010-05-10 | 2014-09-17 | スタンレー電気株式会社 | Vehicle headlamp |
| JP5620714B2 (en) * | 2010-05-17 | 2014-11-05 | 株式会社小糸製作所 | Low beam lamp unit |
| JP2012162105A (en) * | 2011-02-03 | 2012-08-30 | Koito Mfg Co Ltd | Vehicular headlight device |
| JP5869223B2 (en) * | 2011-02-09 | 2016-02-24 | 株式会社小糸製作所 | Vehicle headlamp |
| JP6376453B2 (en) * | 2014-08-22 | 2018-08-22 | スタンレー電気株式会社 | Lens body and vehicle lamp |
| CN106764810B (en) * | 2017-01-12 | 2022-11-29 | 华域视觉科技(上海)有限公司 | Transparent optical conductor with shading effect and application thereof |
| TWI600857B (en) * | 2017-02-09 | 2017-10-01 | Light-shielding module that can enhance the light intensity of the car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107013868A (en) * | 2017-06-07 | 2017-08-04 | 成都恒坤光电科技有限公司 | A kind of distance-light integral type car light |
| CN209245970U (en) * | 2019-01-31 | 2019-08-13 | 成都恒坤光电科技有限公司 | A kind of car light lower beam illumination Optical devices and vehicle front lighting lamp assembly |
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| CN109611781A (en) | 2019-04-12 |
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