CN106439673A - Reflecting type automobile tail lamp adopting digital light processing (DLP) projector as light source - Google Patents
Reflecting type automobile tail lamp adopting digital light processing (DLP) projector as light source Download PDFInfo
- Publication number
- CN106439673A CN106439673A CN201610717187.6A CN201610717187A CN106439673A CN 106439673 A CN106439673 A CN 106439673A CN 201610717187 A CN201610717187 A CN 201610717187A CN 106439673 A CN106439673 A CN 106439673A
- Authority
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- China
- Prior art keywords
- light
- projection system
- dlp projection
- automobile tail
- dlp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
Abstract
The invention belongs to the field of vehicle signal devices, and provides a reflecting type automobile tail lamp adopting a digital light processing (DLP) projection system as a light source. The DLP projection system is fixedly connected with a projection lens into a whole; light rays projected by the DLP projection system form the light source of the automobile tail lamp; the light rays projected by the DLP projection system are reflected by a reflector and then penetrate through an outer lens to form emitted light of the reflecting type automobile tail lamp; by adjusting a digital micromirror device (DMD) lens of the DLP projection system, the output light pattern of the automobile tail lamp is dynamic and variable; and by adjusting a color wheel of the DLP projection system, the color of the light rays projected by the DLP projection system is changed, the color of the light rays projected by the automobile tail lamp is controlled, and therefore switching of different functions of the tail lamp is achieved. The DLP projection system is applied to the field of automobile tail lamps, the changeless light pattern effect of the automobile tail lamp is changed, free switching of different colors and different light patterns can be achieved, and the intelligent tail lamp is truly realized. The reflecting type automobile tail lamp can be widely applied to the field of design and manufacturing of automobile tail lamps.
Description
Technical field
The invention belongs to car lighting or advertiser field, more particularly to a kind of advertiser for automobile tail light.
Background technology
DLP (Digital Light Processing, digital optical processing) is a revolutionary character of projection and display information
New method, designed and developed by American TI Company.Which passes through one piece of reflectance high DMD (Digital Micromirror
Device, digital micro-mirror) eyeglass (also known as chip, similarly hereinafter), the picture being made up of three primary colories (RGB) can be projected.
The technology than traditional employing LCD for light source scialyscope, lumen, solution as and high-contrast in terms of all show
Very big superiority.Optical projection system based on one DLP includes internal memory and signal processing function to support digital methods.
Other elements of DLP projector (also known as projector or optical projection system) generally include a light source, a color filter
Wave system system, cooling system, illumination and projection optics.
One DMD eyeglass (or chip), can be briefly described becomes a semiconductor optical switch.Thousands of small
Square eyeglass, is built upon on the hinge arrangement above static random access memory and constitutes DMD.Each eyeglass can be with break-make
The light of one pixel.
Hinge arrangement allows eyeglass to incline between two states, and+10 degree are "ON".- 10 degree be "Off", when eyeglass not work
When making, they are in 0 degree of " berthing " state.Therefore, DLP can become a simple optical system, by condenser lenss and face
After color filters, the light from light source is shone directly on DMD, and when DMD eyeglass is in ON position, they are by projection
Light projection is gone out by lens.
At present, the mainstream technology of automobile tail light is the mode of operation of light source (bulb/LED) plus reflecting surface/condensing body, that is, use
Light is reflected away by reflecting surface/condensing body, to reach the light type that wants, the technology maturation, and reliable.
But, in the automobile tail light using the mode of operation, once the structure determination of reflecting surface/condensing body, then automobile
The light light type that goes out of taillight is also determined that, it is impossible to is gone out light light type to which and is changed.
Further, since existing light source (bulb/LED) go out light color be changeless, therefore adopt above-mentioned mode of operation
Automobile tail light, be the color that cannot change the light that automobile tail light is projected, thus existing automobile tail light if necessary to send out
Go out different colours light signal when, then need to arrange the light source that at least two differences go out light color, go out light face to meet difference
The needs of color.
Content of the invention
The technical problem to be solved is to provide a kind of reflective automobile by the use of DLP projection system as light source
Taillight.Which adopts DLP projection system as light source, and the light of DLP projection system projection is passed through after being reflected by reflecting mirror joins
Light microscopic, transformable automobile tail light light type dynamic so as to realize, by adjusting the colour wheel in DLP projection system, can control
The color of the light for projecting, so as to realize the switching of taillight difference in functionality.The technical scheme is that：A kind of utilization is provided
DLP projection system as the reflective automobile tail light of light source, including taillight lamp body, the outer lens being located in taillight lamp body, throwing
Shadow lens and reflecting mirror, is characterized in that：
One mounting bracket is set, a DLP projection system and described projecting lens are fixed as one；
The light that the DLP projection system is projected, constitutes the light source of the automobile tail light；
The light of the DLP projection system projection, after the reflecting mirror reflects, through outer lens, is constituted described
Reflective automobile tail light go out light；
Described DLP projection system at least includes light source, colour wheel, finishing lens, DMD eyeglass and DLP wiring board；
By the DMD eyeglass of the DLP projection system is adjusted, dynamic, transformable automobile tail light light type is realized；
By the colour wheel in the DLP projection system is adjusted, change the color of the DLP projection system throw light, control
Automobile tail light processed projects the color of light, so as to realize the switching of taillight difference in functionality.
Specifically, focal position of the light outlet of the DLP projection system in reflecting mirror；The DLP projection system
The light of projection, by the first focus on the projecting lens primary optical axis to described reflecting mirror, after reflection, then passes through
The second focus on the projecting lens primary optical axis, reaches described projecting lens, becomes parallel to projecting lens primary optical axis
Parallel rayies, by described outer lens, be output into the reflective automobile tail light goes out light.
Specifically, the distance of the first described focus to the projecting lens, more than second focus to the projection
The distance of lens.
Specifically, described DLP projection system is by adjusting described colour wheel, the face to DLP projection system output light
Color or colour temperature are controlled, and project red light, sodium yellow or white composite respectively, so that described reflective automobile tail light
Meet the function of taillight, steering indicating light or back-up lamp respectively.
Specifically, DLP projection system is fixed as one by described mounting bracket with described projecting lens, reflecting mirror；
Described mounting bracket is fixed as one with described taillight lamp body by fastening screw.
Specifically, described projecting lens is toroidal lenss；The light source of the DLP projection system is bulb or LED；Institute
Outer lens inner surface setting column decorative pattern is stated, is adjusted with the light lamplight type that goes out to the reflective car tail.
Technical scheme, additionally provides a kind of reflective automobile tail light by the use of DLP projection system as light source,
Including taillight lamp body, the outer lens being located in taillight lamp body, projecting lens and reflecting mirror, it is characterized in that：
In the taillight lamp body arrange a DLP projection system, arrange a mounting bracket, by DLP projection system with
Described projecting lens fixes as one；
The DLP projection system gone out light, as the light source of the reflective automobile tail light；
The light that the DLP projection system is projected, by the first focus on the projecting lens primary optical axis, extremely described
Reflecting mirror, through reflecting mirror reflection after, then pass through the second focus on the projecting lens primary optical axis, reach described in projection
Lens, become parallel to the parallel rayies of projecting lens primary optical axis, by described outer lens, are output into described reflective
Automobile tail light go out light；
Described DLP projection system at least includes light source, colour wheel, finishing lens, DMD eyeglass and DLP wiring board；
By the DMD eyeglass of the DLP projection system is adjusted, dynamic, transformable automobile tail light light type is realized；
By the colour wheel in the DLP projection system is adjusted, change the color of the DLP projection system throw light, control
Automobile tail light processed projects the color of light, so as to realize the switching of taillight difference in functionality.
Wherein, the first described focus is the focus of reflecting mirror, and the second described focus is the focus of projecting lens, described
The first focus and the second focus be respectively positioned on the primary optical axis of the projecting lens.
Specifically, the distance of the first described focus to the projecting lens, more than second focus to the projection
The distance of lens.
Specifically, the light-emitting window of the DLP projection system, the first focal point on the projecting lens primary optical axis.
Specifically, by adjusting the colour wheel in the DLP projection system, color to DLP projection system output light or
Colour temperature is controlled so that the reflective automobile tail light can project red light, sodium yellow or white composite respectively, with
Described reflective automobile tail light is made, the difference that can meet automobile tail light, steering indicating light or back-up lamp simultaneously goes out the letter of light color
Number function.
Further, by regulation or the control to the DLP projection system so that the reflective automobile tail light defeated
Go out light, different colours, any switching laws of different light type can be realized.
Compared with the prior art, it is an advantage of the invention that：
1. together with being effectively combined DLP shadow casting technique with automobile tail light, by optics rich and changeful for DLP projection system
Effect is applied to automobile tail light field, changes the unalterable light type effect of automobile tail light.
2. different colours can be realized using the automobile tail light of DLP projection system, any switching laws of different light type, really become
For intelligent taillight.
Description of the drawings
Fig. 1 is the structure principle chart of the present invention.
In figure 1 is outer lens, and 2 is projecting lens, and 3 is reflecting mirror, and 4 is DLP projection system.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
In Fig. 1, technical scheme provides a kind of reflective car tail by the use of DLP projection system as light source
Lamp, including taillight lamp body, the outer lens 1 being located in taillight lamp body, projecting lens 2 and reflecting mirror 3, its inventive point is：
One mounting bracket is set, by a DLP projection system (or referred to as DLP projector) 4 and described projecting lens 2
Fix as one；
The light that the DLP projection system is projected, constitutes the light source of the automobile tail light；
The light of the DLP projection system projection, after reflecting by reflecting mirror, through outer lens, constitutes reflective vapour
Tail-light go out light；
DLP projection system at least includes light source, colour wheel, finishing lens, DMD eyeglass and DLP wiring board；
By the DMD eyeglass of DLP projection system is adjusted, dynamic, transformable automobile tail light light type is realized；
By the colour wheel in DLP projection system is adjusted, change the color of DLP projection system throw light, control automobile
Taillight projects the color of light, so as to realize the switching of taillight difference in functionality.
The light outlet of DLP projection system is located at the focal position of reflecting mirror.
Specifically, the light of DLP projection system projection, by the first focus on projecting lens primary optical axis to reflecting mirror,
After reflection, then by the second focus on projecting lens primary optical axis, projecting lens is reached, becomes parallel to projecting lens master
The parallel rayies of optical axis, by (through) outer lens, be output into the reflective automobile tail light goes out light.
Specifically, the distance of the first described focus to the projecting lens, more than second focus to the projection
The distance of lens.
Specifically, described DLP projection system is by adjusting described colour wheel, the face to DLP projection system output light
Color or colour temperature are controlled, and project redness, yellow or white composite respectively, so that described reflective automobile tail light is respectively
Meet the function of taillight, steering indicating light or back-up lamp.
Specifically, DLP projection system is fixed as one by described mounting bracket with described projecting lens, reflecting mirror；
Described mounting bracket is fixed as one with described taillight lamp body by fastening screw.
Specifically, described projecting lens is toroidal lenss；The light source of the DLP projection system is bulb or LED；Institute
The inner surface setting decorative pattern of outer lens is stated, decorative pattern can be the decorative pattern of column structure, by adjusting the mechanical chi of column decorative pattern
Very little and angle, is adjusted with the light lamplight type that goes out to the reflective car tail.
Shown in figure, the actual focus for reflecting mirror of the first focus on projecting lens primary optical axis, projecting lens
The actual focus for projecting lens of the second focus on primary optical axis, the first focus and the second focus are respectively positioned on the key light of projecting lens
On axle.
Technical scheme additionally provides a kind of reflective automobile tail light by the use of DLP projection system as light source,
Including taillight lamp body, the outer lens being located in taillight lamp body, projecting lens and reflecting mirror, its inventive point is：
In the taillight lamp body arrange a DLP projection system, arrange a mounting bracket, by DLP projection system with
Described projecting lens fixes as one；
The DLP projection system gone out light, as the light source of the reflective automobile tail light；
The light that the DLP projection system is projected, by the first focus on the projecting lens primary optical axis, extremely described
Reflecting mirror, through reflecting mirror reflection after, then pass through the second focus on the projecting lens primary optical axis, reach described in projection
Lens, become parallel to the parallel rayies of projecting lens primary optical axis, by described outer lens, are output into described reflective
Automobile tail light go out light；
Described DLP projection system at least includes light source, colour wheel, finishing lens, DMD eyeglass and DLP wiring board；
By the DMD eyeglass of the DLP projection system is adjusted, dynamic, transformable automobile tail light light type is realized；
By the colour wheel in the DLP projection system is adjusted, change the color of the DLP projection system throw light, control
Automobile tail light processed projects the color of light, so as to realize the switching of taillight difference in functionality.
Specifically, the distance of the first described focus to the projecting lens, more than second focus to the projection
The distance of lens.
It is apparent that the first focus on the projecting lens primary optical axis is the focus of reflecting mirror, the projecting lens key light
The second focus on axle is the focus of projecting lens, and the first described focus and the second focus are respectively positioned on the master of the projecting lens
On optical axis.
Specifically, by adjusting the colour wheel in the DLP projection system, color to DLP projection system output light or
Colour temperature is controlled so that the reflective automobile tail light can project red light, sodium yellow or white composite respectively, with
Described reflective automobile tail light is made, the difference that can meet automobile tail light, steering indicating light or back-up lamp simultaneously goes out the letter of light color
Number function.
Further, by regulation or the control to the DLP projection system so that the reflective automobile tail light defeated
Go out light, different colours, any switching laws of different light type can be realized.
In optical technology, the light that certain point sends on lens axis, parallel to optical axis after being reflected by lens, the point
First focus of referred to as lens, that is to say, that when object is placed on the first focal point of lens, by lens imaging in infinity.
Parallel to the light of optical axis, certain point of the post-concentration on optical axis is reflected by lens, the point is referred to as the of lens
Two focuses.That is the object of infinite point, by lens imaging lens the second focal point.
In the technical program, DLP projection system is each attached in mounting bracket with projecting lens, and DLP projection system is thrown
The light of injection, passes through lens after reflecting mirror reflection, so as to realize dynamic, transformable automobile tail light light type, passes through
Colour wheel in regulation DLP projection system, the color (also known as colour temperature) of the light that DLP projection system can be controlled to project, so as to
Realize the switching of taillight difference in functionality.
The working condition of automobile intelligent rear light described in the technical program is as follows：
The light that light source (bulb or LED) in DLP projection system is launched, by collecting lenses by light uniformization, so
Light after treatment passes through a colour wheel afterwards, splits the light into RGB (red (R), green (G), blue (B) three colors) (or RGBW
More polychromes such as (red (R), green (G), blue (B), white (W))), then color is penetrated on dmd chip by lens are repaired, wherein DMD core
Piece is a mirror for being encapsulated in the confined space that metal is constituted with glass, and dmd chip is micro- by hundreds thousand of or even up to a million
Microscope group becomes, and a piece of micro mirror represents a pixel, rate of change be 1000 times/second or faster, per piece micro mirror below all have similar hinge
The tumbler of chain effect, hinge arrangement allows eyeglass to incline between two states, and+10 degree are "ON".- 10 degree are "Off",
When eyeglass does not work, they are in 0 degree of " berthing " state.
The light that micro-mirror device reflection in dmd chip needs, light from the light-emitting window of DLP projection system out after, pass through
The focus (i.e. aforesaid first focus) of reflecting mirror, after projecting the reflecting surface of reflecting mirror, is projected by the focus of reflecting mirror, light
Line passes through the focus (i.e. aforesaid second focus) of projecting lens, then after lens refraction, abreast from the lens of taillight
Pass through.
As DLP shadow casting technique is prior art, therefore DLP projection system specifically mechanical, electrical structure and adjustment control method
Here is no longer described.
Based on millions of grades in DMD of micro mirror, DLP projection system can provide 1670 million colors and 256 sections of gray scale
Level.
DLP shadow casting technique is effectively combined together by the technical program with automobile tail light, will be abundant for DLP projection system many
The optical effect of change is applied to automobile tail light field, changes the unalterable light type effect of automobile tail light.Using DLP projection system
The automobile tail light of system can realize different colours, and any switching laws of different light type really become intelligent taillight.
The method can be widely used in design and the manufacture field of automobile tail light.
Claims (12)
1. a kind of reflective automobile tail light by the use of DLP projection system as light source, including taillight lamp body, is located in taillight lamp body
Outer lens, projecting lens and reflecting mirror, it is characterized in that：
One mounting bracket is set, a DLP projection system and described projecting lens are fixed as one；
The light that the DLP projection system is projected, constitutes the light source of the automobile tail light；
The light of the DLP projection system projection, after the reflecting mirror reflects, through outer lens, constitutes the reflection
Formula automobile tail light go out light；
Described DLP projection system at least includes light source, colour wheel, finishing lens, DMD eyeglass and DLP wiring board；
By the DMD eyeglass of the DLP projection system is adjusted, dynamic, transformable automobile tail light light type is realized；
By the colour wheel in the DLP projection system is adjusted, change the color of the DLP projection system throw light, control vapour
Tail-light projects the color of light, so as to realize the switching of taillight difference in functionality.
2., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 1, it is characterized in that described
Focal position of the light outlet of DLP projection system in reflecting mirror.The light of the DLP projection system projection, by described
The first focus on projecting lens primary optical axis then passes through the projecting lens primary optical axis to described reflecting mirror after reflection
On the second focus, reach described projecting lens, become parallel to the parallel rayies of projecting lens primary optical axis, by described
Outer lens, be output into the reflective automobile tail light goes out light.
3., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 2, it is characterized in that described
The first focus to the projecting lens distance, more than the distance of second focus to the projecting lens.
4., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 1, it is characterized in that described
DLP projection system by adjusting described colour wheel, the color or colour temperature of DLP projection system output light is controlled, point
Red light, sodium yellow or white composite are not projected, so that described reflective automobile tail light meets taillight, steering indicating light respectively
Or the function of back-up lamp.
5., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 1, it is characterized in that described
Mounting bracket DLP projection system is fixed as one with described projecting lens, reflecting mirror；Described mounting bracket is by tight
Gu screw is fixed as one with described taillight lamp body.
6., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 1, it is characterized in that described
Projecting lens be toroidal lenss；The light source of the DLP projection system is bulb or LED；Set in the outer lens inner surface
Column decorative pattern is put, is adjusted with the light lamplight type that goes out to the reflective car tail.
7. a kind of reflective automobile tail light by the use of DLP projection system as light source, including taillight lamp body, is located in taillight lamp body
Outer lens, projecting lens and reflecting mirror, it is characterized in that：
In the taillight lamp body arrange a DLP projection system, arrange a mounting bracket, by DLP projection system with described
Projecting lens fix as one；
The DLP projection system gone out light, as the light source of the reflective automobile tail light；
The light that the DLP projection system is projected, by the first focus on the projecting lens primary optical axis, extremely described is anti-
Mirror is penetrated, after reflecting mirror reflection, then by the second focus on the projecting lens primary optical axis, reaches described projection saturating
Mirror, becomes parallel to the parallel rayies of projecting lens primary optical axis, by described outer lens, is output into the reflective vapour
Tail-light go out light；
Described DLP projection system at least includes light source, colour wheel, finishing lens, DMD eyeglass and DLP wiring board；
By the DMD eyeglass of the DLP projection system is adjusted, dynamic, transformable automobile tail light light type is realized；
By the colour wheel in the DLP projection system is adjusted, change the color of the DLP projection system throw light, control vapour
Tail-light projects the color of light, so as to realize the switching of taillight difference in functionality.
8., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 7, it is characterized in that described
The first focus on projecting lens primary optical axis is the focus of reflecting mirror, and the second focus on the projecting lens primary optical axis is projection
The focus of lens, the first described focus and the second focus are respectively positioned on the primary optical axis of the projecting lens.
9., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 7, it is characterized in that described
The first focus to the projecting lens distance, more than the distance of second focus to the projecting lens.
10., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 7, institute it is characterized in that
The light-emitting window of DLP projection system is stated, the first focal point on the projecting lens primary optical axis.
11., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 7, is characterized in that leading to
The colour wheel in the DLP projection system is overregulated, the color or colour temperature of DLP projection system output light is controlled so that
The reflective automobile tail light can project red light, sodium yellow or white composite respectively, so that described reflective vapour
Tail-light, the difference that can meet automobile tail light, steering indicating light or back-up lamp simultaneously goes out the semiotic function of light color.
12., according to the reflective automobile tail light by the use of DLP projection system as light source described in claim 7, is characterized in that leading to
Cross regulation or control to the DLP projection system so that the output light of the reflective automobile tail light, different face can be realized
Color, any switching laws of different light type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717187.6A CN106439673B (en) | 2016-08-24 | 2016-08-24 | It is a kind of using DLP projector as the reflective automobile tail light of light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717187.6A CN106439673B (en) | 2016-08-24 | 2016-08-24 | It is a kind of using DLP projector as the reflective automobile tail light of light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106439673A true CN106439673A (en) | 2017-02-22 |
| CN106439673B CN106439673B (en) | 2019-05-31 |
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ID=58181712
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610717187.6A Active CN106439673B (en) | 2016-08-24 | 2016-08-24 | It is a kind of using DLP projector as the reflective automobile tail light of light source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019029067A1 (en) * | 2017-08-11 | 2019-02-14 | 深圳市绎立锐光科技开发有限公司 | Lighting device, automobile headlight and lighting system |
| WO2021196489A1 (en) * | 2020-03-31 | 2021-10-07 | 广东烨嘉光电科技股份有限公司 | Vehicle-mounted small projection lamp system |
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| US20060077673A1 (en) * | 2004-10-08 | 2006-04-13 | Arthur Berman | Means to increase the light output by the illuminator in a LCoS based light engine |
| CN104412035A (en) * | 2012-06-29 | 2015-03-11 | 株式会社小糸制作所 | Vehicle lamp and control method therefor |
| US20140071704A1 (en) * | 2012-09-13 | 2014-03-13 | Koito Manufacturing Co., Ltd. | Method of controlling vehicle lamp and vehicle lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029067A1 (en) * | 2017-08-11 | 2019-02-14 | 深圳市绎立锐光科技开发有限公司 | Lighting device, automobile headlight and lighting system |
| WO2021196489A1 (en) * | 2020-03-31 | 2021-10-07 | 广东烨嘉光电科技股份有限公司 | Vehicle-mounted small projection lamp system |
| US11708021B2 (en) | 2020-03-31 | 2023-07-25 | Yejia Optical Technology (Guangdong) Corporation | Small-sized vehicle-mounted projector light system |
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| Publication number | Publication date |
|---|---|
| CN106439673B (en) | 2019-05-31 |
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Address after: 201800 Yecheng Road, Shanghai, No. 767, No. Patentee after: Huayu Visual Technology (Shanghai) Co., Ltd. Address before: 201800 Yecheng Road, Shanghai, No. 767, No. Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai |
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