CN103529637B - 3D video system and 3D projecting method - Google Patents
3D video system and 3D projecting method Download PDFInfo
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- CN103529637B CN103529637B CN201310522274.2A CN201310522274A CN103529637B CN 103529637 B CN103529637 B CN 103529637B CN 201310522274 A CN201310522274 A CN 201310522274A CN 103529637 B CN103529637 B CN 103529637B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 102
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000000007 visual effect Effects 0.000 abstract description 6
- 230000003287 optical effect Effects 0.000 abstract description 3
- 230000010287 polarization Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The present invention relates to optical field, be specifically related to a kind of 3D video system and 3D video display method, comprise: for the projected light of incidence being divided into L shape reflective polaroid, two catoptrons, the first liquid crystal wave plate group and two second liquid crystal wave plate groups of transmitted light and two bundle reflected light; The transmission direction of L shape reflective polaroid is provided with the first liquid crystal wave plate group; The reflection direction of every a branch of reflected light of L shape reflective polaroid is provided with for the catoptron by reflected light back to the second liquid crystal wave plate group; The reflection direction of catoptron is provided with the second liquid crystal wave plate group; The opticpath that transmitted light arrives the first liquid crystal wave plate group is equal with the opticpath length that reflected light arrives the second liquid crystal wave plate group, the image that every a branch of reflected light is presented in screen overlaps with the image that transmitted light presents in screen, add the light arriving screen, the ratio of the projected light making the light of arrival screen relatively incident is larger, thus the image frame that screen presents becomes clear clear, visual effect is better.
Description
Technical field
The present invention relates to optical field, in particular to 3D video system and 3D video display method.
Background technology
Along with the development of 3D video display, spectators and cinemas are also improving constantly the requirement that 3D video display present effect, need to use 3D video system, with satisfied viewing needs.
In correlation technique, as shown in Figure 1,3D video system comprises transmission-type polaroid 1 and the first liquid crystal wave plate group 2; The transmission direction of transmission-type polaroid 1 is provided with the first liquid crystal wave plate group.During projection, the projected light of projector arrives the first liquid crystal wave plate group 2 after transmission-type polaroid 1 transmission, becomes rotatory polarization and arrive screen after the first liquid crystal wave plate group 2 transmission.Spectators are watched by specific glasses, and the eyeglass of glasses is the mutually perpendicular polaroid in direction that thoroughly shakes for a pair, then human eye is by the optical image in these glasses viewing screen, and two eyes see independently image respectively, will produce three-dimensional image effect.
Such 3D video system, because the projected light of projector is by there occurs reflection and transmission during transmission-type polaroid 1, the light of transmission is only had to arrive the first liquid crystal wave plate group 2, screen is arrived again after the first liquid crystal wave plate group 2 transmission, arrive the light of screen compared with the projected light of projector, ratio is less, and cause the image frame that screen presents dim fuzzy, visual effect is poor.
Summary of the invention
The object of the present invention is to provide 3D video system and 3D projecting method, to solve the above problems.
Provide 3D video system in an embodiment of the present invention, for the projected light of incidence being divided into L shape reflective polaroid, two catoptrons, the first liquid crystal wave plate group and two second liquid crystal wave plate groups of transmitted light and two bundle reflected light;
The transmission direction of described L shape reflective polaroid is provided with described first liquid crystal wave plate group; The reflection direction of every a branch of reflected light of described L shape reflective polaroid be provided with for by described reflected light back to the described catoptron of described second liquid crystal wave plate group;
The reflection direction of described catoptron is provided with described second liquid crystal wave plate group;
The opticpath that described transmitted light arrives described first liquid crystal wave plate group is equal with the opticpath length that described reflected light arrives described second liquid crystal wave plate group.
The 3D video system that the embodiment of the present invention provides, compared with being provided with the first liquid crystal wave plate group with the transmission direction of transmission-type polaroid of the prior art, the length of the opticpath of the second liquid crystal wave plate group is arrived by the every a branch of reflected light in two bundle reflected light of L shape reflective polaroid reflection, equal with the length of the opticpath being arrived the first liquid crystal wave plate group by the transmitted light of L shape reflective polaroid transmission, the image that every a branch of reflected light is presented in screen overlaps with the image that transmitted light presents in screen, add the light arriving screen, the ratio of the projected light making the light of arrival screen relatively incident is larger, thus the image frame that screen presents becomes clear clear, visual effect is better.
Additionally provide a kind of 3D projecting method of the 3D video system as described in above-described embodiment in an embodiment of the present invention, comprising:
L shape reflective polaroid is used the projected light of incidence to be divided into transmitted light and two bundle reflected light;
Described transmitted light is made to arrive the first liquid crystal wave plate group;
For every a branch of described reflected light, by catoptron by described reflected light back to the second liquid crystal wave plate group;
Make the opticpath of the described first liquid crystal wave plate group of described transmitted light arrival equal with the opticpath length that described reflected light arrives described second liquid crystal wave plate group.
The 3D projecting method that the embodiment of the present invention provides, be provided with compared with the first liquid crystal wave plate group in the transmission direction of transmission-type polaroid with of the prior art, incident projected light is divided into transmitted light and two bundle reflected light through L shape reflective polaroid, in two bundle reflected light, every a branch of reflected light arrives the path of the second liquid crystal wave plate group, equal with the path that transmitted light arrives the first liquid crystal wave plate group, every a branch of reflected light is overlapped in screen with transmitted light, add the light arriving screen, the ratio of the projected light making the light of arrival screen relatively incident is larger, thus the image frame that screen presents becomes clear clear, visual effect is better.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the 3D video system in correlation technique of the present invention;
Fig. 2 shows the schematic diagram of a kind of embodiment of 3D video system of the present invention.
Reference numeral: 1-transmission-type polaroid; 2-first liquid crystal wave plate group; 3-L shape reflective polaroid; 4-catoptron; 5-second liquid crystal wave plate group; 6-shell.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Provide 3D video system in an embodiment of the present invention, as shown in Figure 2, for the projected light of incidence being divided into L shape reflective polaroid 3, two catoptron 4, first liquid crystal wave plate groups 2 and two second liquid crystal wave plate groups 5 of transmitted light and two bundle reflected light; The transmission direction of L shape reflective polaroid 3 is provided with the first liquid crystal wave plate group 2; The reflection direction of every a branch of reflected light of L shape reflective polaroid 3 is provided with for the catoptron 4 by reflected light back to the second liquid crystal wave plate group 5; The reflection direction of catoptron 4 is provided with the second liquid crystal wave plate group 5; The opticpath that transmitted light arrives the first liquid crystal wave plate group 2 is equal with the opticpath length that reflected light arrives the second liquid crystal wave plate group 5.
Wherein, the light of the light that projected light reflects through reflective polaroid and transmission is rotatory polarization, but polarization state is different, the first liquid crystal wave plate group 2 should be made during use contrary with the work schedule of two the second liquid crystal wave plate groups 5, consistent with the polarization polarity of the light transmitted through the second liquid crystal wave plate group 5 to ensure the light transmitted through the first liquid crystal wave plate group 2.
The 3D video system that the embodiment of the present invention provides, compared with being provided with the first liquid crystal wave plate group 2 with the transmission direction of transmission-type polaroid 1 of the prior art, the length of the opticpath of the second liquid crystal wave plate group 5 is arrived by the every a branch of reflected light in the two bundle reflected light that L shape reflective polaroid 3 reflects, equal with the length of the opticpath being arrived the first liquid crystal wave plate group 2 by the transmitted light of L shape reflective polaroid 3 transmission, the image that every a branch of reflected light is presented in screen overlaps with the image that transmitted light presents in screen, add the light arriving screen, the ratio of the projected light making the light of arrival screen relatively incident is larger, thus the image frame that screen presents becomes clear clear, visual effect is better.
Preferably, in above-mentioned 3D video system, also comprise: for the protection of the shell 6 of the L shape reflective polaroid of establishing in the inner 3, two catoptron 4, first liquid crystal wave plate groups 2 and two the second liquid crystal wave plate groups 5.
By arranging shell 6, L shape reflective polaroid 3, two catoptron 4, first liquid crystal wave plate groups 2 and two the second liquid crystal wave plate groups 5 of establishing in the inner can be protected, in addition, by 3D video system integrated setting, also conveniently carry out transporting and circulating.
Preferably, in above-mentioned 3D video system, the angle of two reflectings surface of L shape reflective polaroid 3 is 90 °.
Also namely, the angle making two reflectings surface of L shape reflective polaroid 3 and the projected light of horizontal direction incidence is 45 degree.The incident angle this ensures that thering incident ray is 45 degree, and extinction ratio is met design requirement, and the 3D effect of projection is better.
Preferably, in above-mentioned 3D video system, the first liquid crystal wave plate group 2, two the second liquid crystal wave plate groups 5 are positioned at same plane.
All same plane is positioned at by arranging the first liquid crystal wave plate group 2, two the second liquid crystal wave plate groups 5, more easily adjust two catoptrons 4, incident projected light is made to be divided into transmitted light and two bundle reflected light by L shape reflective polaroid 3, transmitted light arrives the length of the opticpath of the first liquid crystal wave plate group 2, equal with the length that reflected light arrives the second liquid crystal wave plate group 5, simplify the debugging step of 3D video system.
A 3D projecting method for 3D video system in above-described embodiment, uses L shape reflective polaroid 3 projected light of incidence to be divided into transmitted light and two bundle reflected light; Transmitted light is made to arrive the first liquid crystal wave plate group 2; For every a branch of reflected light, by catoptron 4 by reflected light back to the second liquid crystal wave plate group 5; Transmitted light is made to arrive the opticpath of the first liquid crystal wave plate group 2 equal with the opticpath length that reflected light arrives the second liquid crystal wave plate group 5.
Wherein, the light of the light that projected light reflects through reflective polaroid and transmission is rotatory polarization, but polarization state is different, the first liquid crystal wave plate group 2 should be made during use contrary with the work schedule of two the second liquid crystal wave plate groups 5, consistent with the polarization polarity of the light transmitted through the second liquid crystal wave plate group 5 to ensure the light transmitted through the first liquid crystal wave plate group 2.
The 3D projecting method that the embodiment of the present invention provides, be provided with compared with the first liquid crystal wave plate group 2 in the transmission direction of transmission-type polaroid 1 with of the prior art, incident projected light is divided into transmitted light and two bundle reflected light through L shape reflective polaroid 3, in two bundle reflected light, every a branch of reflected light arrives the path of the second liquid crystal wave plate group 5, equal with the path that transmitted light arrives the first liquid crystal wave plate group 2, the image that every a branch of reflected light is presented in screen overlaps with the image that transmitted light presents in screen, add the light arriving screen, the ratio of the projected light making the light of arrival screen relatively incident is larger, thus the image frame that screen presents becomes clear clear, visual effect is better.
Preferably; in above-mentioned 3D projecting method; the opticpath arriving the first liquid crystal wave plate group 2 making transmitted light and reflected light arrive the opticpath length of the second liquid crystal wave plate group 5 equal after, also comprise: order protection establishes the shell 6 of L shape reflective polaroid 3, two catoptron 4, first liquid crystal wave plate groups 2 in the inner and two the second liquid crystal wave plate groups 5 to close.
The shell 6 of L shape reflective polaroid 3, two catoptron 4, first liquid crystal wave plate groups 2 in the inner and two the second liquid crystal wave plate groups 5 is established to close by order protection; the shell 6 of L shape reflective polaroid 3, two catoptron 4, first liquid crystal wave plate groups 2 and two second liquid crystal wave plate groups 5 of establishing in the inner can be protected to close; and make 3D video system integrated setting, conveniently carry out transporting and circulating.
Preferably, in above-mentioned 3D projecting method, before the projected light of incidence is divided into transmitted light and two bundle reflected light by use L shape reflective polaroid 3, also comprise: make the angle of two reflectings surface of L shape reflective polaroid 3 be 90 °.
Also namely, the angle making two reflectings surface of L shape reflective polaroid 3 and the projected light of horizontal direction incidence is 45 degree.The incident angle this ensures that thering incident ray is 45 degree, and extinction ratio is met design requirement, and the 3D effect of projection is better.
Preferably, in above-mentioned 3D projecting method, be after 90 ° at the angle of two reflectings surface making L shape reflective polaroid 3, before the projected light of incidence is divided into transmitted light and two bundle reflected light by use L shape reflective polaroid 3, also comprise: make the first liquid crystal wave plate group 2, two the second liquid crystal wave plate groups 5 be positioned at same plane.
All same plane is positioned at by making the first liquid crystal wave plate group 2, two the second liquid crystal wave plate groups 5, more easily adjust two catoptrons 4, incident projected light is made to be divided into transmitted light and two bundle reflected light by L shape reflective polaroid 3, transmitted light arrives the length of the opticpath of the first liquid crystal wave plate group 2, equal with the length that reflected light arrives the second liquid crystal wave plate group 5, simplify the debugging step of 3D video system.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a 3D video system, is characterized in that, comprising: for the projected light of incidence being divided into L shape reflective polaroid, two catoptrons, the first liquid crystal wave plate group and two second liquid crystal wave plate groups of transmitted light and two bundle reflected light;
The transmission direction of described L shape reflective polaroid is provided with described first liquid crystal wave plate group; The reflection direction of every a branch of reflected light of described L shape reflective polaroid be provided with for by described reflected light back to the described catoptron of described second liquid crystal wave plate group;
The reflection direction of described catoptron is provided with described second liquid crystal wave plate group;
The opticpath that described transmitted light arrives described first liquid crystal wave plate group is equal with the opticpath length that described reflected light arrives described second liquid crystal wave plate group;
The angle of two reflectings surface of described L shape reflective polaroid is 90 °;
Wherein, described first liquid crystal wave plate group, two described second liquid crystal wave plate groups are positioned at same plane.
2. 3D video system according to claim 1, is characterized in that, also comprise: for the protection of the shell of the described L shape reflective polaroid of establishing in the inner, two catoptrons, the first liquid crystal wave plate group and two the second liquid crystal wave plate groups.
3. a 3D projecting method for the 3D video system according to any one of claim 1 ~ 2, is characterized in that, comprising:
The angle making two reflectings surface of described L shape reflective polaroid is 90 °;
Make described first liquid crystal wave plate group, two described second liquid crystal wave plate groups are positioned at same plane;
L shape reflective polaroid is used the projected light of incidence to be divided into transmitted light and two bundle reflected light;
Described transmitted light is made to arrive the first liquid crystal wave plate group;
For every a branch of described reflected light, by catoptron by described reflected light back to the second liquid crystal wave plate group;
Make the opticpath of the described first liquid crystal wave plate group of described transmitted light arrival equal with the opticpath length that described reflected light arrives described second liquid crystal wave plate group.
4. 3D projecting method according to claim 3; it is characterized in that; the opticpath and the described reflected light that make described transmitted light arrive described first liquid crystal wave plate group arrives the opticpath length of described second liquid crystal wave plate group equal after, also comprise: make the shell seal protected and establish described L shape reflective polaroid in the inner, two catoptrons, the first liquid crystal wave plate group and two the second liquid crystal wave plate groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522274.2A CN103529637B (en) | 2013-10-29 | 2013-10-29 | 3D video system and 3D projecting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310522274.2A CN103529637B (en) | 2013-10-29 | 2013-10-29 | 3D video system and 3D projecting method |
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| CN103529637A CN103529637A (en) | 2014-01-22 |
| CN103529637B true CN103529637B (en) | 2016-04-13 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101387097B1 (en) | 2013-04-02 | 2014-04-29 | 유한회사 마스터이미지쓰리디아시아 | Three beam splitting method and a stereoscopic projection using the same |
| KR101702024B1 (en) * | 2015-04-06 | 2017-02-02 | 유한회사 마스터이미지쓰리디아시아 | Stereoscopic Image Display Apparatus with Remote Controlled Alignment Function and Method for Displaying Stereoscopic Image Using the Same |
| US9594255B2 (en) * | 2015-06-25 | 2017-03-14 | Volfoni R&D EURL | Stereoscopic 3D projection system with improved level of optical light efficiency |
| CN106885159A (en) * | 2015-12-11 | 2017-06-23 | 高准精密工业股份有限公司 | Light-emitting device |
| CN107015430A (en) * | 2017-05-18 | 2017-08-04 | 北京爱格信达科技有限公司 | 3D projecting devices and 3D projection systems |
| CN108508621A (en) * | 2018-03-12 | 2018-09-07 | 广东欧珀移动通信有限公司 | Project structured light module, image acquiring device and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1115087A (en) * | 1997-06-24 | 1999-01-22 | Ricoh Co Ltd | Method and device for reading two right and left pictures of object image |
| JP2000111838A (en) * | 1998-09-30 | 2000-04-21 | Victor Co Of Japan Ltd | Illumination device of projector and projector |
| US7857455B2 (en) * | 2006-10-18 | 2010-12-28 | Reald Inc. | Combining P and S rays for bright stereoscopic projection |
| JP2010217818A (en) * | 2009-03-19 | 2010-09-30 | Panasonic Corp | Projection type display device |
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Effective date of registration: 20160719 Address after: 100080 No. 31 Haidian street, Beijing, Haidian District 206 Patentee after: BEIJING AIGEXINDA TECHNOLOGY Co.,Ltd. Address before: 335418 Jiangxi city of Guixi Province Tang Wan Zhen Gu Tang Cun Wang Group No. 7 Patentee before: Wang Gaosheng |
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