CN107861310A - A kind of double-lens laser projection display equipment - Google Patents
A kind of double-lens laser projection display equipment Download PDFInfo
- Publication number
- CN107861310A CN107861310A CN201711201402.8A CN201711201402A CN107861310A CN 107861310 A CN107861310 A CN 107861310A CN 201711201402 A CN201711201402 A CN 201711201402A CN 107861310 A CN107861310 A CN 107861310A
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- China
- Prior art keywords
- lens
- speculum
- projection
- light
- liquid crystal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
- G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
-
- 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
- G03B21/28—Reflectors in projection beam
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
Abstract
The double-lens laser projection display equipment of offer of the present invention, it incides the light that white light laser is sent on half-reflection and half-transmission liquid crystal display through polaroid, liquid crystal display is modulated to form image to light, and reflex to the first projection lens, and it is transmitted through the second projection lens, Projection Display is carried out in different directions so as to realize, so it is cost-effective.
Description
Technical field
The present invention relates to projecting apparatus display field, and in particular to a kind of double-lens laser projection display equipment.
Background technology
Refering to Fig. 1, Fig. 1 is the structural representation of existing laser projection display apparatus.As shown in figure 1, existing laser
Projection display equipment, its incident light 101 is the natural polarised light of white, usual in order to improve the utilization ratio of light in projector equipment
A polarization converter 1 is placed in light path so that the natural polarised light in part is converted to the linearly polarized light 102 of a direction, this
The polarization direction of individual linearly polarized light 102 is consistent with the polarization direction of polaroid 11 with polaroid 7, polaroid 9.Light is mapped to one
On dichroscope 2, dichroscope 2 is reflected blue light 103, and gold-tinted 104 is transmitted, and the blue light 103 reflected is by a reflection
Mirror 4 incides polaroid 7 and liquid crystal display 8 after reflecting, and liquid crystal display 8 is modulated to form image to blue light 103, is then incident on one
On individual light combination mirror 13；The gold-tinted 104 of transmission is incided on dichroscope 3, and dichroscope 3 is reflected green glow 105, to feux rouges 106
Transmission, the green glow 105 reflected incide polaroid 9 and liquid crystal display 10, and liquid crystal display 10 is modulated to form figure to green glow 105
Picture, it is then incident on a light combination mirror 13；The feux rouges 106 of transmission incides the He of polaroid 11 after two speculums 5 and 6
Liquid crystal display 12, liquid crystal display 12 are modulated to form image to feux rouges 106, are then incident on a light combination mirror 13.Light combination mirror 13
Three width images be combined into it is a branch of incide a projection lens 14, projection lens projects image on screen.
Laser projection display apparatus in Fig. 1 is single-lens laser projection display apparatus, can only be thrown in one direction
Shadow is shown, and needs to carry out multiple directions Projection Display for some public places, such as concert scene, roundtable conference,
At least four projecting apparatus is then needed to meet projection demand, its cost is higher.
The content of the invention
The embodiment of the present invention provides a kind of double-lens laser projection display equipment, and it can simplify laser projection display apparatus
Structure, and then reduce cost.
A kind of double-lens laser projection display equipment, including：White light laser, polaroid, half-reflection and half-transmission liquid crystal display, first
Projection lens and the second projection lens；Wherein,
The light that the white light laser is sent incides the half-reflection and half-transmission liquid crystal display through the polaroid, and described half is anti-
Semi-transparent liquid crystal display is modulated to form image to the light, and reflexes to first projection lens, and is transmitted through described
Second projection lens.
In the double-lens laser projection display equipment of the present invention, the light that the white light laser is sent is by predetermined angle
The half-reflection and half-transmission liquid crystal display is incided through the polaroid.
In the double-lens laser projection display equipment of the present invention, the predetermined angle is between 0-90 degree.
In the double-lens laser projection display equipment of the present invention, the perspective plane of first projection lens and described second
The perspective plane of projection lens is mutually perpendicular to.
In the double-lens laser projection display equipment of the present invention, the double-lens laser projection display equipment also includes：
First speculum, the second speculum and the 3rd speculum；
The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and reflexes to first speculum,
Described image is reflexed to first projection lens by first speculum；
The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and is transmitted through second speculum,
Described image is reflexed to the 3rd speculum by second speculum, and described image is reflexed to institute by the 3rd speculum
State the second projection lens.
In the double-lens laser projection display equipment of the present invention, the perspective plane of first projection lens and described second
The perspective plane of projection lens is parallel and relative.
In the double-lens laser projection display equipment of the present invention, the double-lens laser projection display equipment also includes：
4th speculum and the 5th speculum；
The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and reflexes to the 4th speculum,
Described image is reflexed to first projection lens by the 4th speculum；
The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and is transmitted through the 5th speculum,
Described image is reflexed to second projection lens by the 5th speculum.
The double-lens laser projection display equipment of offer of the present invention, the light that it sends white light laser is through polarisation
Piece is incided on half-reflection and half-transmission liquid crystal display, and liquid crystal display is modulated to form image to light, and reflexes to the first projection lens, with
And the second projection lens is transmitted through, and Projection Display is carried out in different directions so as to realize, so it is cost-effective.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation of existing laser projection display apparatus.
Fig. 2 is the structural representation for the twin-lens projection display equipment that first preferred embodiment of the invention provides.
Fig. 3 is the structural representation for the twin-lens projection display equipment that second preferred embodiment of the invention provides.
Fig. 4 is the application schematic diagram for the twin-lens projection display equipment that second preferred embodiment of the invention provides.
Fig. 5 is the structural representation for the twin-lens projection display equipment that third preferred embodiment of the invention provides.
Fig. 6 is the application schematic diagram for the twin-lens projection display equipment that second preferred embodiment of the invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Refering to Fig. 2, Fig. 2 is the structural representation for the twin-lens projection display equipment that first preferred embodiment of the invention provides
Figure.As shown in Fig. 2 the twin-lens projection display equipment that first preferred embodiment of the invention provides, may be implemented in two not Tongfangs
Upward Projection Display.The device includes：White light laser 201, polaroid 202, half-reflection and half-transmission liquid crystal display 203, first project
The projection lens 205 of camera lens 204 and second；Wherein, the light that white light laser 201 is sent incides half anti-half through polaroid 202
Saturating liquid crystal display 203, half-reflection and half-transmission liquid crystal display 203 is modulated to form image to light, and reflexes to the first projection lens 204,
And it is transmitted through the second projection lens 205.
Wherein, the light that white light laser 201 is sent incides half-reflection and half-transmission liquid crystal by predetermined angle ε through polaroid 202
Screen 203, predetermined angle ε are the folder between the direction for the light that white light laser 201 is sent and half-reflection and half-transmission liquid crystal display 203
Angle.Further, the light that the white light laser 201 is sent incides half-reflection and half-transmission liquid crystal by predetermined angle ε through polaroid 202
Screen 203, half-reflection and half-transmission liquid crystal display 203 is modulated to form image to light, reflexes to the first projection lens 204 all the way, another
Reuter is incident upon the second projection lens 205.
For example, when the light that white light laser 201 is sent incides half-reflection and half-transmission liquid with predetermined angle ε through polaroid 202
Crystalline substance screen 203, half-reflection and half-transmission liquid crystal display 203 is modulated the image to be formed to light, reflexes to the first projection lens 204 all the way,
Another way reflexes to the second projection lens 205, therefore, can set up the first projection lens 204 in the reflection side of the image,
Second projection lens 205 is set in the transmission direction of the image, and then realizes Projection Display in different directions；Wherein, should
Angle between the reflection direction and half-reflection and half-transmission liquid crystal display 203 of image is equal to predetermined angle ε, the transmission direction of the image and half
Angle between anti-semi-transparent liquid crystal display 203 is equal to predetermined angle ε.
Further, the real first preferred predetermined angle ε applied in example of the present invention is between 0-90 degree.Need what is illustrated
It is, it is contemplated that reflection and transmission effect by light after half-reflection and half-transmission liquid crystal display 203, to realize in different directions
Projection Display, therefore, between predetermined angle ε need to being set in into 0-90 degree, so as to light after half-reflection and half-transmission liquid crystal display 203
It can be reflected and be transmitted.
Refering to Fig. 3, Fig. 3 is the structural representation for the twin-lens projection display equipment that second preferred embodiment of the invention provides
Figure.As shown in figure 3, the twin-lens projection display equipment that second preferred embodiment of the invention provides, may be implemented in two not Tongfangs
While upward Projection Display, several speculums are set, and then change the placement location of projection lens so that the twin-lens
Projection display equipment uses more flexible, convenient.The device includes：White light laser 201, polaroid 202, half-reflection and half-transmission
Liquid crystal display 203, the first projection lens 204, the second projection lens 205, the first speculum 206, the second speculum 207 and the 3rd are anti-
Penetrate mirror 208.
The light that white light laser 201 is sent incides half-reflection and half-transmission liquid crystal display 203, half-reflection and half-transmission liquid through polaroid 202
Crystalline substance 203 pairs of light of screen are modulated to form image, and reflex to the first speculum 206, and the first speculum 206 reflexes to image
First projection lens 204；The light that white light laser 201 is sent incides half-reflection and half-transmission liquid crystal display 203 through polaroid 202, and half
Anti- semi-transparent liquid crystal display 203 is modulated to form image to light, and is transmitted through the second speculum 207, and the second speculum 207 will figure
As reflexing to the 3rd speculum 208, image is reflexed to the second projection lens 205 by the 3rd speculum 208.
Wherein, the light that white light laser 201 is sent incides half-reflection and half-transmission liquid crystal by predetermined angle ε through polaroid 202
Screen 203, predetermined angle ∈ are the folder between the direction for the light that white light laser 201 is sent and half-reflection and half-transmission liquid crystal display 203
Angle.Further, the light that the white light laser 201 is sent incides half-reflection and half-transmission liquid by predetermined angle ∈ through polaroid 202
Crystalline substance screen 203, half-reflection and half-transmission liquid crystal display 203 is modulated to form image to light, reflexes to the first speculum 206 all the way, and first
Image is reflexed to the first projection lens 204 by speculum 206 again, and another way is transmitted through the second speculum 207, the second speculum
Image is reflexed to the 3rd speculum 208 by 207, and image is reflexed to the second projection lens 205 by the 3rd speculum 208 again.
Wherein, the perspective plane of the first projection lens 204 and the perspective plane of the second projection lens 205 are mutually perpendicular to.For example, will
Predetermined angle ∈ is set as 45 degree, when the light that white light laser 201 is sent is incided with predetermined angle ∈ through polaroid 202
Half-reflection and half-transmission liquid crystal display 203, half-reflection and half-transmission liquid crystal display 203 are modulated the image to be formed to light, and it is anti-to reflex to first all the way
Mirror 206 is penetrated, image is reflexed to the first projection lens 204 by the first speculum 206 again, and another way is transmitted through the second speculum 207,
Image is reflexed to the 3rd speculum 208 by the second speculum 207, and image is reflexed to the second projection lens by the 3rd speculum 208 again
First 205.Wherein, the angle that image is reflexed between the radiation direction of the first speculum 206 and the first speculum 206 is 22.5
Degree, the angle between the radiation direction and the second speculum 207 of image transmission to second speculum 207 is 45 degree, image
The angle reflexed between the radiation direction and the 3rd speculum 208 of the 3rd speculum 208 is 22.5 degree.
Under some special screnes, such as：Concert scene, roundtable conference etc. need to carry out Projection Display to multiple directions
When, two sets of twin-lens projection display equipments of the present embodiment offer can be passed through, it is possible to meet projection demand, it can be greatly simplified
Projection arrangement structure, it is cost-effective.Referring to Fig. 4, the twin-lens projection that Fig. 4, which is second preferred embodiment of the invention, to be provided is aobvious
The application schematic diagram of showing device.As shown in figure 4, the application scenarios include：Auditorium 301, seat 302 and two sets of twin-lens
Projection display equipment 303 and 304, it may be implemented in, in right both direction by first set twin-lens projection display equipment 304
Projection Display, it be may be implemented in down, the Projection Display in left both direction, entered by second set of twin-lens projection display equipment 303
And owner can be may be such that and all watch projection.
Refering to Fig. 5, Fig. 5 is the structural representation for the twin-lens projection display equipment that third preferred embodiment of the invention provides
Figure.As shown in figure 5, the twin-lens projection display equipment that third preferred embodiment of the invention provides, may be implemented in two not Tongfangs
While upward Projection Display, several speculums are set, and then change the placement location of projection lens so that the twin-lens
Projection display equipment uses more flexible, convenient.The device includes：White light laser 401, polaroid 402, half-reflection and half-transmission
Liquid crystal display 403, the first projection lens 404, the second projection lens 405, the 4th speculum 406 and the 5th speculum 407.
The light that white light laser 401 is sent incides half-reflection and half-transmission liquid crystal display 403, half-reflection and half-transmission liquid through polaroid 402
Crystalline substance 403 pairs of light of screen are modulated to form image, and reflex to the 4th speculum 406, and the 4th speculum 406 reflexes to image
First projection lens 404；The light that white light laser 401 is sent incides half-reflection and half-transmission liquid crystal display 403 through polaroid 402, and half
Anti- semi-transparent liquid crystal display 403 is modulated to form image to light, and is transmitted through the 5th speculum 407, and the 5th speculum 407 will figure
As reflexing to the second projection lens 405.
Wherein, the light that white light laser 401 is sent incides half-reflection and half-transmission liquid crystal by predetermined angle ∈ through polaroid 402
Screen 403, predetermined angle ∈ are the folder between the direction for the light that white light laser 401 is sent and half-reflection and half-transmission liquid crystal display 403
Angle.Further, the light that the white light laser 401 is sent incides half-reflection and half-transmission liquid by predetermined angle ∈ through polaroid 402
Crystalline substance screen 403, half-reflection and half-transmission liquid crystal display 403 is modulated to form image to light, reflexes to the 4th speculum 406 all the way, and the 4th
Image is reflexed to the first projection lens 404 by speculum 406 again, and another way is transmitted through the 5th speculum 407, the 5th speculum
Image is reflexed to the second projection lens 405 by 407 again.
The perspective plane of first projection lens 404 is parallel and relative with the perspective plane of the second projection lens 405.For example, should
Predetermined angle ∈ is set as 45 degree, when the light that white light laser 401 is sent incides half with predetermined angle ∈ through polaroid 402
Anti- semi-transparent liquid crystal display 403, half-reflection and half-transmission liquid crystal display 403 are modulated the image to be formed to light, reflex to the 4th reflection all the way
Image is reflexed to the first projection lens 404 by mirror 406, the 4th speculum 406 again, and another way is transmitted through the 5th speculum 407, the
Image is reflexed to the second projection lens 405 by five speculums 407 again.Wherein, image reflexes to the light side of the 4th speculum 406
It is 22.5 degree to the angle between the 4th speculum 406, the radiation direction of image transmission to the 5th speculum 407 and
Angle between five speculums 407 is 67.5 degree.
Under some special screnes, such as：Concert scene, roundtable conference etc. need to carry out Projection Display to multiple directions
When, two sets of twin-lens projection display equipments of the present embodiment offer can be passed through, it is possible to meet projection demand, it can be greatly simplified
Projection arrangement structure, it is cost-effective.Referring to Fig. 6, the twin-lens projection that Fig. 6, which is second preferred embodiment of the invention, to be provided is aobvious
The application schematic diagram of showing device.As shown in fig. 6, the application scenarios include：Auditorium 501, seat 502 and two sets of twin-lens
Projection display equipment 503 and 504, it be may be implemented in by first set twin-lens projection display equipment 503 in left and right both direction
Projection Display, the Projection Display that be may be implemented in by second set of twin-lens projection display equipment 504 in upper and lower both direction, enters
And owner can be may be such that and all watch projection.
The double-lens laser projection display equipment of offer of the present invention, the light that it sends white light laser is through polarisation
Piece is incided on half-reflection and half-transmission liquid crystal display, and liquid crystal display is modulated to form image to light, and reflexes to the first projection lens, with
And the second projection lens is transmitted through, and Projection Display is carried out in different directions so as to realize, so it is cost-effective.
LCD assembly provided in an embodiment of the present invention is described in detail above, it is used herein specifically individual
Example is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands the present invention.
Meanwhile for those skilled in the art, according to the thought of the present invention, have change in specific embodiments and applications
Become part, in summary, this specification content should not be construed as limiting the invention.
Claims (7)
- A kind of 1. double-lens laser projection display equipment, it is characterised in that including：White light laser, polaroid, half-reflection and half-transmission liquid Crystalline substance screen, the first projection lens and the second projection lens；Wherein,The light that the white light laser is sent incides the half-reflection and half-transmission liquid crystal display, the half-reflection and half-transmission through the polaroid Liquid crystal display is modulated to form image to the light, and reflexes to first projection lens, and is transmitted through described second Projection lens.
- 2. double-lens laser projection display equipment according to claim 1, it is characterised in that the white light laser is sent Light incide the half-reflection and half-transmission liquid crystal display through the polaroid by predetermined angle.
- 3. double-lens laser projection display equipment according to claim 2, it is characterised in that the predetermined angle is between 0- Between 90 degree.
- 4. double-lens laser projection display equipment according to claim 1, it is characterised in that first projection lens Perspective plane and the perspective plane of second projection lens are mutually perpendicular to.
- 5. double-lens laser projection display equipment according to claim 4, it is characterised in that the double-lens laser projection Display device also includes：First speculum, the second speculum and the 3rd speculum；The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and reflexes to first speculum, described Described image is reflexed to first projection lens by the first speculum；The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and is transmitted through second speculum, described Described image is reflexed to the 3rd speculum by the second speculum, and described image is reflexed to described by the 3rd speculum Two projection lens.
- 6. double-lens laser projection display equipment according to claim 1, it is characterised in that first projection lens Perspective plane is parallel and relative with the perspective plane of second projection lens.
- 7. double-lens laser projection display equipment according to claim 6, it is characterised in that the double-lens laser projection Display device also includes：4th speculum and the 5th speculum；The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and reflexes to the 4th speculum, described Described image is reflexed to first projection lens by the 4th speculum；The half-reflection and half-transmission liquid crystal display is modulated to form image to the light, and is transmitted through the 5th speculum, described Described image is reflexed to second projection lens by the 5th speculum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201402.8A CN107861310A (en) | 2017-11-27 | 2017-11-27 | A kind of double-lens laser projection display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201402.8A CN107861310A (en) | 2017-11-27 | 2017-11-27 | A kind of double-lens laser projection display equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107861310A true CN107861310A (en) | 2018-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711201402.8A Pending CN107861310A (en) | 2017-11-27 | 2017-11-27 | A kind of double-lens laser projection display equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023273135A1 (en) * | 2021-06-30 | 2023-01-05 | 歌尔光学科技有限公司 | Projection optical unit |
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| WO1997014076A1 (en) * | 1995-10-13 | 1997-04-17 | Unic View Ltd. | Projector |
| US20020041361A1 (en) * | 2000-10-09 | 2002-04-11 | Prokia Technology Co., Ltd. | Triple-lens type projection display with uniform optical path lengths for different color components |
| CN1492260A (en) * | 2002-10-23 | 2004-04-28 | 统宝光电股份有限公司 | Two side display liquid crystal panel |
| CN101169517A (en) * | 2006-10-26 | 2008-04-30 | 中强光电股份有限公司 | Projecting apparatus |
| CN201556017U (en) * | 2009-10-29 | 2010-08-18 | 天津三星电子有限公司 | Double-lens projector |
| CN102325242A (en) * | 2011-04-08 | 2012-01-18 | 香港应用科技研究院有限公司 | Many image projection devices |
| US20130235280A1 (en) * | 2010-12-01 | 2013-09-12 | Lemoptix Sa | Projection system |
| CN104142605A (en) * | 2014-07-14 | 2014-11-12 | 深圳雅图数字视频技术有限公司 | Projector |
-
2017
- 2017-11-27 CN CN201711201402.8A patent/CN107861310A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997014076A1 (en) * | 1995-10-13 | 1997-04-17 | Unic View Ltd. | Projector |
| US20020041361A1 (en) * | 2000-10-09 | 2002-04-11 | Prokia Technology Co., Ltd. | Triple-lens type projection display with uniform optical path lengths for different color components |
| CN1492260A (en) * | 2002-10-23 | 2004-04-28 | 统宝光电股份有限公司 | Two side display liquid crystal panel |
| CN101169517A (en) * | 2006-10-26 | 2008-04-30 | 中强光电股份有限公司 | Projecting apparatus |
| CN201556017U (en) * | 2009-10-29 | 2010-08-18 | 天津三星电子有限公司 | Double-lens projector |
| US20130235280A1 (en) * | 2010-12-01 | 2013-09-12 | Lemoptix Sa | Projection system |
| CN102325242A (en) * | 2011-04-08 | 2012-01-18 | 香港应用科技研究院有限公司 | Many image projection devices |
| CN104142605A (en) * | 2014-07-14 | 2014-11-12 | 深圳雅图数字视频技术有限公司 | Projector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023273135A1 (en) * | 2021-06-30 | 2023-01-05 | 歌尔光学科技有限公司 | Projection optical unit |
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