CN110082993A - A kind of optical projection system and its Projection Design method of single channel double patterning - Google Patents
A kind of optical projection system and its Projection Design method of single channel double patterning Download PDFInfo
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- CN110082993A CN110082993A CN201910405302.XA CN201910405302A CN110082993A CN 110082993 A CN110082993 A CN 110082993A CN 201910405302 A CN201910405302 A CN 201910405302A CN 110082993 A CN110082993 A CN 110082993A
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- projection
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- narrowband reflection
- lens
- reflection piece
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- 230000003287 optical effect Effects 0.000 title claims abstract description 61
- 238000000059 patterning Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001228 spectrum Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000003595 spectral effect Effects 0.000 claims description 14
- 239000005357 flat glass Substances 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 3
- IQNDCJMEVJJWQL-UHFFFAOYSA-M sodium;5-amino-6-hydroxynaphthalene-2-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=C2C(N)=C(O)C=CC2=C1 IQNDCJMEVJJWQL-UHFFFAOYSA-M 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
System of the present invention provides the optical projection system and its Projection Design method of a kind of single channel double patterning, including the first projection source, the second projection source, narrowband reflection piece and projection lens set, narrowband reflection piece and the optical axis of projection lens set are in angle of 45 degrees, narrowband reflection piece is reflecting surface close to the surface of projection lens set side, and surface of the narrowband reflection piece far from projection lens set side is transmission plane；First projection source is located at the transmission plane side of narrowband reflection piece, and the optical axis of the first projection source and the optical axis of projection lens set are conllinear, and the second projection source is located at the side of narrowband reflection piece reflecting surface, and the optical axis of the second projection source and the optical axis of projection lens set are vertical；The luminous peak wavelength of first projection source is p, and the luminous peak wavelength of the second projection source is q, and the reflected spectrum wavelengths of narrowband reflection film are a~b,q∈[a,b].The present invention can form the drop shadow effect of two kinds of different patterns by single pass projection lens system, and unfailing performance is high.
Description
Technical field
The present invention relates to optical projection system, optical projection system and its Projection Design side of a kind of single channel double patterning are specifically disclosed
Method.
Background technique
Optical projection system will image in the optical system of projection screen after object illumination.Optical projection system can be used for the vehicle of automobile
Luminous pattern is projected to ground to welcome, warning or decoration by body.
In the prior art, optical projection system all only one channels, i.e. projection lens are corresponding to only have a pattern plane, the pattern plane
It can be the fixed film of tradition, can also be the LCD screen of variation, can also be multiple films connected by movable device
Piece.For single pass fixed film chip architecture, a kind of drop shadow effect of pattern can only be realized；For transformable LCD screen,
Although a variety of drop shadow effects can be formed, the input cost of optical projection system is high, and for it is vehicle-mounted when can not be surveyed by reliability
Examination；For mobilizable more film chip architectures, need to be arranged additional movable device to rotate each film to realize difference
Drop shadow effect, movable device includes the components such as motor, rotation connection structure, it will causes the volume of whole optical projection system significant
Increase, be unfavorable for application layout, and integrally-built reliability is low, is damaged once vibration occurs and will easily lead to optical projection system
It is bad.
Summary of the invention
Based on this, it is necessary to be directed to prior art problem, provide the optical projection system and its projection of a kind of single channel double patterning
Design method can form the drop shadow effect of two kinds of different patterns, the reliability of system structure by single pass projection lens
It can be high.
To solve prior art problem, the present invention discloses a kind of optical projection system of single channel double patterning, including the first projection
The optical axis of source, the second projection source, narrowband reflection piece and projection lens set, narrowband reflection piece and projection lens set in angle of 45 degrees,
Narrowband reflection piece is reflecting surface, surface of the narrowband reflection piece far from projection lens set side close to the surface of projection lens set side
For transmission plane；
First projection source is located at the transmission plane side of narrowband reflection piece, and the optical axis of the first projection source and the optical axis of projection lens set are total
Line, the second projection source are located at the side of narrowband reflection piece reflecting surface, and the optical axis of the second projection source and the optical axis of projection lens set hang down
Directly；
The luminous peak wavelength of first projection source is p, and the luminous peak wavelength of the second projection source is q, the reflection of narrowband reflection film
Spectral wavelength ranges are a~b,q∈[a,b]。
Further, the first projection source includes the first light source set gradually, the first collimation lens and first film, and first
The film is located at the first collimation lens close to the side of narrowband reflection piece；Second projection source includes the second light source set gradually,
Two collimation lenses and second film, second film are located at the second collimation lens close to the side of narrowband reflection piece.
Further, narrowband reflection piece is the sheet glass for being coated with narrowband reflection film.
Further, projection lens set includes the first projecting lens, the second projecting lens and the third projection set gradually
Lens.
Further, the first projecting lens and third projecting lens are convex lens, and the second projecting lens is concavees lens.
Invention additionally discloses a kind of Projection Design methods of single channel double patterning, comprising the following steps:
A, prepare the narrowband reflection piece that reflected spectrum wavelengths range is a~b, prepare the first projection source that peak wavelength is p, prepare
Peak wavelength is the second projection source of q,q∈[a,b]；
B, the first projection source is set in the side of narrowband reflection piece, the second projection source and throwing is set in the other side of narrowband reflection piece
The optical axis of shadow lens group, the first projection source and projection lens set is conllinear, and the optical axis and narrowband reflection piece of projection lens set are at 45 degree
Angle, the optical axis of the second collimation lens and the optical axis of projection lens set are vertical.
Further, in step A, the spectral half width that the first projection source and the second projection source is arranged is respectively less than 30nm, if
The peak wavelength difference set between the first projection source and the second projection source is greater than 80nm.
The invention has the benefit that the present invention discloses optical projection system and its Projection Design side of a kind of single channel double patterning
Method, one common projection lens set of projection source and outfit that setting Liang Ge spectral energy area is not overlapped substantially, in conjunction with specific aim
Strong narrowband reflection structure can form the drop shadow effect of two kinds of different patterns by single pass projection lens system, thus
Meet the display demand under different situations to different pattern, system structure is relatively succinct, occupies little space, and input cost is relatively
Low, layout installation difficulty when application is low, and whole optical projection system can resist certain unusual fluctuation, and unfailing performance is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical projection system of the present invention.
Fig. 2 is the spectral dependence figure in the embodiment of the present invention one between narrowband reflection piece and two projection sources.
Projecting light path's schematic diagram when Fig. 3 is the first projection source work in the embodiment of the present invention one.
Projecting light path's schematic diagram when Fig. 4 is the second projection source work in the embodiment of the present invention one.
Fig. 5 is the spectral dependence figure in the embodiment of the present invention two between narrowband reflection piece and two projection sources.
Projecting light path's schematic diagram when Fig. 6 is the first projection source work in the embodiment of the present invention two.
Projecting light path's schematic diagram when Fig. 7 is the second projection source work in the embodiment of the present invention two.
Appended drawing reference are as follows: the first projection source 10, first light source 11, the first collimation lens 12, the projection of first film 13, second
Source 20, second light source 21, the second collimation lens 22, second film 23, narrowband reflection piece 30, projection lens set 40, first project
Lens 41, the second projecting lens 42, third projecting lens 43.
Specific embodiment
To further understand the features of the present invention, technological means and specific purposes achieved, function, below with reference to
Present invention is further described in detail with specific embodiment for attached drawing.
Referring to figs. 1 to Fig. 7.
Basis embodiment of the invention discloses a kind of optical projection system of single channel double patterning, as shown in Figure 1, including the first projection
Source 10, the second projection source 20, narrowband reflection piece 30 and projection lens set 40, narrowband reflection piece 30 are also known as narrowband reflection filter,
In angle of 45 degrees, narrowband reflection piece 30 is close to 40 side of projection lens set for narrowband reflection piece 30 and the optical axis of projection lens set 40
Surface is reflecting surface, and surface of the narrowband reflection piece 30 far from 40 side of projection lens set is transmission plane；
First projection source 10 is located at the transmission plane side of narrowband reflection piece 30, the optical axis and projection lens set 40 of the first projection source 10
Optical axis it is conllinear, the second projection source 20 is located at the side of 30 reflecting surface of narrowband reflection piece, the optical axis of the second projection source 20 and projection
The optical axis of lens group 40 is vertical, the optical axis of the optical axis of the first projection source 10, the optical axis of the second projection source 20 and projection lens set 40
Intersection point is located at the center of narrowband reflection piece 30；
The luminous peak wavelength of first projection source 10 is p, and the luminous peak wavelength of the second projection source 20 is q, narrowband reflection film
Reflected spectrum wavelengths range is a~b,Q ∈ [a, b], i.e., the luminescent spectrum of the first projection source 10 is not in narrowband reflection film
Reflectance spectrum in, the luminescent spectrum of the second projection source 20 is in the reflectance spectrum of narrowband reflection film.
The light that first projection source 10 issues can be directly transmitted through narrowband reflection piece 30 and reach projection lens set 40, thus
Form the first projection pattern；The light that second projection source 20 issues is reflected to projection thoroughly after being incident on the surface of narrowband reflection piece 30
In microscope group 40, to form the second projection pattern.
Specific embodiment one, based on basic embodiment, the reflected spectrum wavelengths range of narrowband reflection piece 30 is 500~
560nm, the peak wavelength of the first projection source 10 is near 640nm, and the peak wavelength of the second projection source 20 is near 520nm, i.e.,
Narrowband reflection piece 30 has reflecting effect, the first projection source 10 to issue feux rouges pattern, the second projection source 20 sending green light figure green light
The spectral dependence figure of case, the first projection source 10, the second projection source 30 and narrowband reflection piece 30 is as shown in Figure 2.First projection source 10
It is capable of forming the first red pattern, the second projection source 20 is capable of forming the second pattern of green, is needing using the first pattern
When, it opens the first projection source 10, close the second projection source 20, projecting light path is as shown in figure 3, the light of the first projection source 10 sending is saturating
It was shot through after narrowband reflector plate 30 and projects the first pattern of acquisition by projection lens set 40；When needing using the second pattern, beat
Open the second projection source 20, close the first projection source 10, projecting light path as shown in figure 4, the second projection source 20 issue light in narrowband
It is projected after being reflected on reflector plate 30 by projection lens set 40 and obtains the second pattern.
Specific embodiment two, based on basic embodiment, the reflected spectrum wavelengths range of narrowband reflection piece 30 is 560~
610nm, the peak wavelength of the first projection source 10 is near 640nm, and the peak wavelength of the second projection source 20 is near 590nm, i.e.,
Narrowband reflection piece 30 has reflecting effect, the first projection source 10 to issue feux rouges pattern, the second projection source 20 sending yellow light figure yellow light
The spectral dependence figure of case, the first projection source 10, the second projection source 30 and narrowband reflection piece 30 is as shown in Figure 5.First projection source 10
It is capable of forming red third pattern, the second projection source 20 is capable of forming the 4th pattern of yellow, is needing using third pattern
When, it opens the first projection source 10, close the second projection source 20, projecting light path is as shown in fig. 6, the light of the first projection source 10 sending is saturating
It was shot through after narrowband reflector plate 30 and projects acquisition third pattern by projection lens set 40；When needing using four patterns, beat
Open the second projection source 20, close the first projection source 10, projecting light path as shown in fig. 7, the second projection source 20 issue light in narrowband
It is projected after being reflected on reflector plate 30 by projection lens set 40 and obtains the 4th pattern.
The present invention is arranged the projection source that Liang Ge spectral energy area is not overlapped substantially and is equipped with a common projection lens set,
In conjunction with narrowband reflection structure with strong points, the projection of two kinds of different patterns can be formed by single pass projection lens system
Effect, to meet the display demand under different situations to different pattern, system structure is relatively succinct, occupies little space, and puts into
Advantage of lower cost, layout installation difficulty when application is low, and whole optical projection system can resist certain unusual fluctuation, unfailing performance
It is high.
In the present embodiment, the first projection source 10 includes the first light source 11 set gradually, the first collimation lens 12 and the
One film 13, the light that first light source 11 issues are incident on first film 13 after the first collimation lens 12 processing collimation, from
And it is formed and is located at the first collimation lens 12 close to narrowband with the matched first projection original image of first film 13, first film 13
The side of reflector plate 30；Second projection source 20 includes second light source 21, the second collimation lens 22 and second film set gradually
23, the light that second light source 21 issues is incident on second film 23 after the second collimation lens 22 processing collimation, to be formed
With the matched second projection original image of second film 23, second film 23 is located at the second collimation lens 22 close to narrowband reflection piece
The optical axis of 30 side, first light source 11, the first collimation lens 12 and first film 13 is conllinear, and second light source 21, second collimates
The optical axis of lens 22 and second film 23 is conllinear, and according to different application demands, first film 13 and second film 23 tool is arranged
There is different patternings.
In the present embodiment, narrowband reflection piece 30 is the sheet glass for being coated with narrowband reflection film, and narrowband reflection film is that have spy
The reflectance coating for determining reflection bandwidth has the effect of high transmittance to the light other than the reflection bandwidth.
In the present embodiment, projection lens set 40 includes the first projecting lens 41, the second projecting lens 42 set gradually
With third projecting lens 43.Preferably, the first projecting lens 41 and third projecting lens 43 are convex lens, the second projecting lens
42 be concavees lens, can be realized general projection by the first projecting lens 41, the second projecting lens 42 and third projecting lens 43
The light regulating effect of lens barrel.
A kind of Projection Design method of single channel double patterning is also disclosed in the embodiment of the present invention, comprising the following steps:
A, prepare the narrowband reflection piece 30 that reflected spectrum wavelengths range is a~b, prepare the first projection source 10 that peak wavelength is p,
Prepare the second projection source 20 that peak wavelength is q,q∈[a,b]；
B, first projection source 10 is set in the side of narrowband reflection piece 30, the second projection of setting in the other side of narrowband reflection piece 30
Source 20 and projection lens set 40, the first projection source 10 is conllinear with the optical axis of projection lens set 40, the optical axis of projection lens set 40 with
In angle of 45 degrees, the optical axis of the second collimation lens 22 is vertical with the optical axis of projection lens set 40 for narrowband reflection piece 30.
Based on the above embodiment, in step A, the spectral half width that the first projection source 10 and the second projection source 20 is arranged is small
In 30nm, the peak wavelength difference being arranged between the first projection source 10 and the second projection source 20 is greater than 80nm, it is preferable that b-a ≈
60nm realizes that this programme function is necessary to ensure that the dominant spectral energy range of two projection sources is not overlapped, it is preferable that two projection sources
Spectral energy area be not overlapped completely, it means that need narrow setting the first projection source 10 and the second projection source 20 spectral width
Degree, while also needing to be arranged with sufficiently large distance between the first projection source 10 and the spectrum peak of the second projection source 20, this is
The spectral energy area overlapping of two projection sources can effectively be avoided.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (7)
1. a kind of optical projection system of single channel double patterning, which is characterized in that including the first projection source (10), the second projection source
(20), narrowband reflection piece (30) and projection lens set (40), the narrowband reflection piece (30) and the projection lens set (40)
In angle of 45 degrees, the narrowband reflection piece (30) is reflecting surface, institute close to the surface of the projection lens set (40) side to optical axis
Stating the surface of narrowband reflection piece (30) far from the projection lens set (40) side is transmission plane；
First projection source (10) is located at the transmission plane side of the narrowband reflection piece (30), first projection source (10)
Optical axis is conllinear with the optical axis of the projection lens set (40), and it is anti-that second projection source (20) is located at the narrowband reflection piece (30)
The side in face is penetrated, the optical axis of second projection source (20) is vertical with the optical axis of the projection lens set (40)；
The luminous peak wavelength of first projection source (10) is p, and the luminous peak wavelength of second projection source (20) is q,
The reflected spectrum wavelengths range of the narrowband reflection film is a~b,q∈[a,b]。
2. a kind of optical projection system of single channel double patterning according to claim 1, which is characterized in that first projection source
It (10) include the first light source (11) set gradually, the first collimation lens (12) and first film (13), first film
(13) it is located at first collimation lens (12) close to the side of the narrowband reflection piece (30)；Second projection source (20) packet
The second light source (21), the second collimation lens (22) and second film (23) set gradually is included, second film (23) is located at
Second collimation lens (22) is close to the side of the narrowband reflection piece (30).
3. a kind of optical projection system of single channel double patterning according to claim 1, which is characterized in that the narrowband reflection piece
It (30) is the sheet glass for being coated with narrowband reflection film.
4. a kind of optical projection system of single channel double patterning according to claim 1, which is characterized in that the projection lens set
It (40) include the first projecting lens (41), the second projecting lens (42) and third projecting lens (43) set gradually.
5. a kind of optical projection system of single channel double patterning according to claim 4, which is characterized in that first projection is saturating
Mirror (41) and the third projecting lens (43) are convex lens, and second projecting lens (42) is concavees lens.
6. a kind of Projection Design method of single channel double patterning, which comprises the following steps:
A, prepare the narrowband reflection piece (30) that reflected spectrum wavelengths range is a~b, prepare the first projection source that peak wavelength is p
(10), prepare the second projection source (20) that peak wavelength is q,q∈[a,b]；
B, first projection source (10) is set in the side of the narrowband reflection piece (30), in the narrowband reflection piece (30)
Second projection source (20) and projection lens set (40), first projection source (10) and the projecting lens is arranged in the other side
The optical axis of group (40) is conllinear, and the optical axis of the projection lens set (40) and the narrowband reflection piece (30) are in angle of 45 degrees, described
The optical axis of second collimation lens (22) is vertical with the optical axis of the projection lens set (40).
7. a kind of Projection Design method of single channel double patterning according to claim 6, which is characterized in that in step A, if
The spectral half width for setting first projection source (10) and second projection source (20) is respectively less than 30nm, is arranged described first and throws
Peak wavelength difference between eikonogen (10) and second projection source (20) is greater than 80nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910405302.XA CN110082993A (en) | 2019-05-16 | 2019-05-16 | A kind of optical projection system and its Projection Design method of single channel double patterning |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910405302.XA CN110082993A (en) | 2019-05-16 | 2019-05-16 | A kind of optical projection system and its Projection Design method of single channel double patterning |
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| CN110082993A true CN110082993A (en) | 2019-08-02 |
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| CN201910405302.XA Pending CN110082993A (en) | 2019-05-16 | 2019-05-16 | A kind of optical projection system and its Projection Design method of single channel double patterning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692570A (en) * | 2020-04-07 | 2020-09-22 | 宁波吉利汽车研究开发有限公司 | Structure and control method for projecting light show on vehicle exterior trim |
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| CN205317164U (en) * | 2015-12-15 | 2016-06-15 | 宁波频泰光电科技有限公司 | Lighting device that colored 3D measurement system used |
| CN206247071U (en) * | 2016-12-14 | 2017-06-13 | 深圳市佶达德科技有限公司 | A kind of LASER Light Source and searchlight for changing light extraction shape |
| CN208141781U (en) * | 2018-04-11 | 2018-11-23 | 深圳市盈鹏光电有限公司 | Two-in-one conjoined formula guest-greeting projection lamp |
| TWM574575U (en) * | 2018-07-30 | 2019-02-21 | 揚明光學股份有限公司 | Puddle light |
| CN209746340U (en) * | 2019-05-16 | 2019-12-06 | 广东烨嘉光电科技股份有限公司 | Projection system of two patterns of single channel |
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2019
- 2019-05-16 CN CN201910405302.XA patent/CN110082993A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205317164U (en) * | 2015-12-15 | 2016-06-15 | 宁波频泰光电科技有限公司 | Lighting device that colored 3D measurement system used |
| CN206247071U (en) * | 2016-12-14 | 2017-06-13 | 深圳市佶达德科技有限公司 | A kind of LASER Light Source and searchlight for changing light extraction shape |
| CN208141781U (en) * | 2018-04-11 | 2018-11-23 | 深圳市盈鹏光电有限公司 | Two-in-one conjoined formula guest-greeting projection lamp |
| TWM574575U (en) * | 2018-07-30 | 2019-02-21 | 揚明光學股份有限公司 | Puddle light |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692570A (en) * | 2020-04-07 | 2020-09-22 | 宁波吉利汽车研究开发有限公司 | Structure and control method for projecting light show on vehicle exterior trim |
| CN111692570B (en) * | 2020-04-07 | 2022-08-30 | 武汉路特斯汽车有限公司 | Structure and control method for projecting light show on vehicle exterior trim |
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