CN102043254A - Stereoprojection optical machine engine of double illuminating system - Google Patents
Stereoprojection optical machine engine of double illuminating system Download PDFInfo
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- CN102043254A CN102043254A CN2010105536746A CN201010553674A CN102043254A CN 102043254 A CN102043254 A CN 102043254A CN 2010105536746 A CN2010105536746 A CN 2010105536746A CN 201010553674 A CN201010553674 A CN 201010553674A CN 102043254 A CN102043254 A CN 102043254A
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Abstract
The invention discloses a stereprojection optical machine engine of a double illuminating system. The engine comprises a light source component, a light splitting/condensing system and a project lens and is characterized in that the light source component comprises a first light source component and a second light source component, wherein the light beams emitted by the first light source component and the second light component are modulated into polarized beams with vertical polarization states by the light splitting/condensing system and then the beams enter into the project lens. The engine has the beneficial effects that the two paths of polarized beams are extremely uniform in luminance, contrast and other parameters, and the quality of the stereprojection is improved.
Description
Technical field
The present invention relates to be used to produce the optical system of 3-D effect, particularly relate to the stereoprojection optical machine engine of a kind of pair of illuminator.
Background technology
In recent years, reflective type silicon-based liquid crystal (Liquid Crystal on Silicon, initialism is LCOS) maturation of technology, make projection display technique quantum jump occur, the further reduction of cost, the appearance of micro projector, the entertainment applications that makes projector market invest household person gradually from commercial affairs, education sector.The prosperity in three-dimensional film market, the market of further having widened three-dimensional home theater.Stereotelevision cost height, portable poor, miniature stereoprojection is the development trend of following three-dimensional home theater.
Core based on the stereo projection technology of polarized light is the polarization spectro technology, with light splitting device incident beam is separated into the orthogonal two-way illuminating bundle in polarization direction, be modulated into the light beam that has image information through display device, spectators can see stereo-picture with going up the polarization direction glasses corresponding with the image beam polarization direction.
Two dimension only shows that brightness to passage, contrast etc. have requirement, and in the binary channels stereo display, not only the brightness of each passage, contrast etc. need satisfy display requirement, and crosstalking between the two paths, consistance all need to reach requirement.
U.S. Pat 7059728 and Chinese patent CN1570704A have all proposed only to use tripleplane's display device of a polarizing beam splitter and two LCOS panels, a polarization light-dividing surface are arranged, as shown in Figure 1 in this polarizing beam splitter.Because the restriction of the coating technique of polarized light splitting device can only guarantee that the polarization purity of one road polarized light can reach the contrast requirement that actual displayed needs, make the otherness of two-way and crosstalk all bigger, the stereo display poor quality.
Chinese patent CN03803103.5 discloses the stereoprojection ray machine of a kind of four polarization light-dividing surfaces of use and two LCOS panels, and four polarization light-dividing surfaces are meter font to be placed, and two bundle LCOS illumination light have all been passed through twice partially, and contrast improves.But in this patent, two LCOS modulate the illuminating bundle of s polarization state and p polarization state respectively.
Chinese patent CN1462895A " reflection type liquid crystal stereoprojection ray machine ", CN101162296A " polarizing beam splitter and use the LCOS LCD stereo projection system of this polarizing beam splitter " has announced the stereoprojection ray machine that uses four polarization light-dividing surfaces and two LCOS panels respectively.Its difference is that four polarization light-dividing surfaces are a meter font, parallel type placement respectively, and are respectively as Fig. 2, shown in Figure 3.Fig. 2 is the stereoprojection ray machine that patent CN1462895A announces, two blocks of white light wave plates that are used for the rotary beam polarization state all are placed same paths, though can be by before and after wave plate, adding the method for polaroid, reduce the influence of wave plate to contrast, but therefore the brightness of this passage also can reduce, and is difficult for obtaining two channel image of high conformity.The stereoprojection ray machine that Fig. 3 announces for CN101162296A, its Primary Component---have the polarizing beam splitter (Polarizing Beam Splitter, initialism are PBS) of three light splitting surfaces, its essence is the combination of the PBS of four parallel placements of light splitting surface.The spatial arrangement of two paths is asymmetric, is difficult for reaching coherence request.
The stereoprojection optical machine engine that above patent proposes all is to use one tunnel illuminator, controls brightness, contrast and the parameter of consistency that two-way throws light on by separation/combination optical device and polarization converter device, in the hope of reaching the high efficiency of light energy utilization.In fact, the polarization spectro of prior art level and switching device can not reach actual parameter index requirement.
Summary of the invention
Technical matters to be solved by this invention is that the stereoprojection optical machine engine of a kind of pair of illuminator is provided.
The stereoprojection optical machine engine of of the present invention pair of illuminator, comprise light source assembly, separation/combination photosystem and projection lens, described separation/combination photosystem comprises polarization beam apparatus, polarization converter, the first reflective electrooptic modulator and the second reflective electrooptic modulator; Described polarization beam apparatus comprises the first wide wavestrip polarization beam apparatus, the second wide wavestrip polarization beam apparatus and the 3rd wide wavestrip polarization beam apparatus; Described light source assembly comprises first light source assembly and secondary light source assembly; The light beam that first light source assembly produces forms first light beam after the first wide wavestrip polarization beam apparatus and the first reflective electrooptic modulator adjustment, described first light beam enters described projection lens after seeing through the described the 3rd wide wavestrip polarization beam apparatus; The light beam that the secondary light source assembly produces forms polarization state second light beam vertical with the polarization state of described first light beam after the second wide wavestrip polarization beam apparatus, the second reflective electrooptic modulator and polarization converter adjustment; Described second light beam enters described projection lens after the described the 3rd wide wavestrip polarization beam apparatus refraction.
Described light source assembly is meant can the outgoing natural light or the light source of the illuminating bundle of circularly polarized light and additional beam shaping, the optical path component uniformly of being used for.
Described polarization beam apparatus is meant that incident beam can be separated into polarization state in whole white light wave band vertical mutually, and exit direction is the optical device of orthogonal two-beam also.It can be cubical polarization splitting prism, also can be that the polarization spectro sheet placed of miter angle or other can be realized the optical device of above-mentioned functions.Preferred polarization spectro plain film or cubical polarization splitting prism.
Described polarization converter is meant the polarization converter that all works at whole white light wave band, can be a white light wave plate, also can be made up of or other have the optical device of this function the wave plate stack that polylith only works to subband.
The described first reflective electrooptic modulator and the second reflective electrooptic modulator are to have light intensity and the optical device of polarization state, preferably reflective type silicon-based liquid crystal (LCOS) panel of adjusting incident light simultaneously.If described LCOS panel adopts monochromatic LCOS panel, but the monochromatic light ray source component of the synthesize white light that then described light source assembly is the outgoing sequential.If described LCOS panel adopts colored LCOS panel, then described light source assembly is the light source assembly of outgoing white light.
Brightness for balance two-way light beam, also can add one or more brightness decay devices in the described separation/combination photosystem, described brightness decay device is arranged between the described first wide wavestrip polarization beam apparatus and the described the 3rd wide wavestrip polarization beam apparatus and/or between described polarization converter and the described the 3rd wide wavestrip polarization beam apparatus.Described polarizing beam splitter, brightness decay device and polarization converter are glued together, or the part separation, or separate fully.
The present invention's beneficial effect compared with prior art is: adopt two illuminators and two-way polarized light light path symmetry substantially, thereby guaranteed the height unanimity of two-way polarized light on brightness, contrast and other parameters, improved the stereoprojection quality.
Description of drawings
Fig. 1 is U.S. Pat 7059728 and the disclosed tripleplane of Chinese patent CN1570704A display device structure synoptic diagram;
Fig. 2 is the structural representation of the disclosed reflection type liquid crystal stereoprojection of Chinese patent CN1462895A ray machine;
Fig. 3 is the structural representation of the disclosed LCOS LCD stereo projection system of Chinese patent CN101162296A;
Fig. 4 is the structural representation of the optical machine engine of the preferred embodiments of the present invention one;
Fig. 5 is the structural representation of the optical machine engine of the preferred embodiments of the present invention two.
Embodiment
Contrast accompanying drawing and the present invention is explained in detail below in conjunction with preferred embodiment.
Embodiment one
As shown in Figure 4, be the structural representation of the LCOS stereoprojection optical machine engine of two illuminators of this preferred embodiment.The LCOS stereoprojection optical machine engine of a kind of pair of illuminator comprises: first light source assembly 101 and secondary light source assembly 102; Three wide wavestrip polarization beam apparatus: first polarization splitting prism, 201, the second polarization splitting prisms 202 and the 3rd polarization splitting prism 203; Polarization converter 300 is the white light wave plate; Two reflective electrooptic modulators: a LCOS panel 401 and the 2nd LCOS panel 402; Projection lens 500.
Wherein, first light source assembly 101 and secondary light source assembly 102 are used for the illuminating bundle of outgoing natural light or circularly polarized light.In order to realize colored demonstration, described illuminating bundle can be a white light beam, also can be the monochromatic light of sequential.
First polarization splitting prism 201 and second polarization splitting prism 202 are used for the illuminating bundle of natural light or circularly polarized light is divided into orthogonal s light beam of polarization state and p light beam.
The natural light or the circularly polarized light of 101 outgoing of first light source assembly are divided into s light beam and p light beam through first polarization splitting prism 201, s light beam by 201 outgoing of first polarization splitting prism is radiated at a LCOS panel 401 surfaces, be modulated to p light beam and reflection through a LCOS panel 401, see through the 3rd polarization splitting prism 203, enter projection lens 500.
The natural light of secondary light source assembly 102 outgoing or circularly polarized light are divided into s light beam and p light beam through second polarization splitting prism 202, s light beam by 202 outgoing of second polarization splitting prism is radiated at the 2nd LCOS panel 402 surfaces, be modulated to p light beam and reflection through the 2nd LCOS panel 402, through white light wave plate 300, convert the s light beam to, after 203 reflections of the 3rd polarization splitting prism, enter projection lens 500.
If the identical signal of loading on a LCOS panel 401 and the 2nd LCOS panel 402, optical machine engine then of the present invention projects the image on plane.If load the two-way unlike signal of taking and making according to the stereo display requirement on a LCOS panel 401 and the 2nd LCOS panel 402 respectively, then two width of cloth anaglyphs on a LCOS panel 401 and the 2nd LCOS panel 402 project on the screen by s light beam and p light beam respectively, the observer puts on corresponding analyzing glasses, just can observe stereo-picture.
For the brightness of balance two-way light beam, can be according to the intrinsic brilliance measurement result, the corresponding site in described separation/combination photosystem adds one or more brightness decay devices.
Embodiment two
As shown in Figure 5, this preferred embodiment only is with the difference of embodiment one: employing of this preferred embodiment and horizontal direction are the first polarization spectro plain film 201 ' and the second polarization spectro plain film 202 ' of 45 degree placements and are negative 45 with horizontal direction spends the 3rd polarization spectro plain film 203 ' of placement as wide wavestrip polarization beam apparatus.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the technician of the technical field of the invention, without departing from the inventive concept of the premise, can also make some being equal to substitute or obvious modification, and performance or purposes are identical, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. the stereoprojection optical machine engine of two illuminators, comprise light source assembly, separation/combination photosystem and projection lens, described separation/combination photosystem comprises polarization beam apparatus, polarization converter, the first reflective electrooptic modulator and the second reflective electrooptic modulator; It is characterized in that: described polarization beam apparatus comprises the first wide wavestrip polarization beam apparatus, the second wide wavestrip polarization beam apparatus and the 3rd wide wavestrip polarization beam apparatus; Described light source assembly comprises first light source assembly and secondary light source assembly;
The light beam that described first light source assembly produces forms first light beam after the first wide wavestrip polarization beam apparatus and the first reflective electrooptic modulator adjustment, described first light beam enters described projection lens after seeing through the described the 3rd wide wavestrip polarization beam apparatus;
The light beam that described secondary light source assembly produces forms polarization state second light beam vertical with the polarization state of described first light beam after the second wide wavestrip polarization beam apparatus, the second reflective electrooptic modulator and polarization converter adjustment; Described second light beam enters described projection lens after the described the 3rd wide wavestrip polarization beam apparatus refraction.
2. the stereoprojection optical machine engine of pair illuminator according to claim 1 is characterized in that: the described first reflective electrooptic modulator and the second reflective electrooptic modulator are the reflective type silicon-based liquid crystal panel.
3. the stereoprojection optical machine engine of pair illuminator according to claim 1 is characterized in that: the described first wide wavestrip polarization beam apparatus, the second wide wavestrip polarization beam apparatus and the 3rd wide wavestrip polarization beam apparatus are polarization splitting prism or polarization spectro plain film.
4. according to claim 1,2 or the stereoprojection optical machine engine of 3 described pairs of illuminators, it is characterized in that: described polarization converter is the white light wave plate or is made up of the wave plate stack that polylith only can act on subband.
5. according to claim 1,2 or the stereoprojection optical machine engine of 3 described pairs of illuminators, it is characterized in that: described separation/combination photosystem also comprises at least one brightness decay device, is used to adjust the brightness of described first light beam and/or second light beam.
6. the stereoprojection optical machine engine of pair illuminator according to claim 5 is characterized in that: described brightness decay device is arranged between the described first wide wavestrip polarization beam apparatus and the described the 3rd wide wavestrip polarization beam apparatus and/or between described polarization converter and the described the 3rd wide wavestrip polarization beam apparatus.
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| CN2010105536746A CN102043254A (en) | 2010-11-22 | 2010-11-22 | Stereoprojection optical machine engine of double illuminating system |
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| CN2010105536746A CN102043254A (en) | 2010-11-22 | 2010-11-22 | Stereoprojection optical machine engine of double illuminating system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006180A (en) * | 2012-12-01 | 2013-04-03 | 清华大学深圳研究生院 | Integrated vein search projection device and system |
| WO2013110235A1 (en) * | 2012-01-25 | 2013-08-01 | International Business Machines Corporation | Three dimensional image projector |
| WO2013110238A1 (en) * | 2012-01-25 | 2013-08-01 | International Business Machines Corporation | Three dimensional image projector with two color imaging |
| CN103576435A (en) * | 2012-08-03 | 2014-02-12 | 精工爱普生株式会社 | Projector |
| CN104238133A (en) * | 2014-09-19 | 2014-12-24 | 西安中科晶像光电科技有限公司 | Three-dimensional desktop display system based on polarization |
| US8955975B2 (en) | 2012-01-25 | 2015-02-17 | International Business Machines Corporation | Three dimensional image projector with circular light polarization |
| US8985785B2 (en) | 2012-01-25 | 2015-03-24 | International Business Machines Corporation | Three dimensional laser image projector |
| US9004700B2 (en) | 2012-01-25 | 2015-04-14 | International Business Machines Corporation | Three dimensional image projector stabilization circuit |
| CN104536147A (en) * | 2015-01-08 | 2015-04-22 | 四川大学 | Optical switching system based on spatial light modulator |
| US9104048B2 (en) | 2012-01-25 | 2015-08-11 | International Business Machines Corporation | Three dimensional image projector with single modulator |
| US9325978B2 (en) | 2012-01-25 | 2016-04-26 | International Business Machines Corporation | Three dimensional LCD monitor display |
| CN111896937A (en) * | 2020-08-24 | 2020-11-06 | 西安炬光科技股份有限公司 | Optical module for light beam superposition and laser system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630880Y (en) * | 2003-06-24 | 2004-08-04 | 清华大学 | Reflection-type liquid crystal stereoscopic optical projector |
| JP2004226767A (en) * | 2003-01-24 | 2004-08-12 | Nippon Hoso Kyokai <Nhk> | Optical unit, display system using the same, and video light output method |
| CN1579100A (en) * | 2001-06-19 | 2005-02-09 | 英特尔公司 | Projection engine |
| CN1623334A (en) * | 2002-01-28 | 2005-06-01 | 汤姆森特许公司 | Brighter light engine architecture for a liquid crystal display projection system |
| US20060028620A1 (en) * | 2004-08-09 | 2006-02-09 | 3M Innovative Properties Company | Projection display system using multiple light sources and polarizing element for using with same |
| CN1858631A (en) * | 2005-05-03 | 2006-11-08 | 卡尔蔡斯耶拿有限公司 | Device for producing multiple images in the projection surface |
| US20090091814A1 (en) * | 2007-10-05 | 2009-04-09 | Hon Hai Precision Industry Co., Ltd. | Stereo projection optical system |
| CN101770080A (en) * | 2009-01-07 | 2010-07-07 | 索尼公司 | Projection stereoscopic display |
-
2010
- 2010-11-22 CN CN2010105536746A patent/CN102043254A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1579100A (en) * | 2001-06-19 | 2005-02-09 | 英特尔公司 | Projection engine |
| CN1623334A (en) * | 2002-01-28 | 2005-06-01 | 汤姆森特许公司 | Brighter light engine architecture for a liquid crystal display projection system |
| JP2004226767A (en) * | 2003-01-24 | 2004-08-12 | Nippon Hoso Kyokai <Nhk> | Optical unit, display system using the same, and video light output method |
| CN2630880Y (en) * | 2003-06-24 | 2004-08-04 | 清华大学 | Reflection-type liquid crystal stereoscopic optical projector |
| US20060028620A1 (en) * | 2004-08-09 | 2006-02-09 | 3M Innovative Properties Company | Projection display system using multiple light sources and polarizing element for using with same |
| CN1858631A (en) * | 2005-05-03 | 2006-11-08 | 卡尔蔡斯耶拿有限公司 | Device for producing multiple images in the projection surface |
| US20090091814A1 (en) * | 2007-10-05 | 2009-04-09 | Hon Hai Precision Industry Co., Ltd. | Stereo projection optical system |
| CN101770080A (en) * | 2009-01-07 | 2010-07-07 | 索尼公司 | Projection stereoscopic display |
Cited By (31)
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| US9268160B2 (en) | 2012-01-25 | 2016-02-23 | International Business Machines Corporation | Three dimensional image projector with single modulator |
| GB2514038B (en) * | 2012-01-25 | 2016-03-16 | Ibm | Three dimensional image projector with two color imaging |
| US8992024B2 (en) | 2012-01-25 | 2015-03-31 | International Business Machines Corporation | Three dimensional image projector with circular light polarization |
| US8998427B2 (en) | 2012-01-25 | 2015-04-07 | International Business Machines Corporation | Three dimensional image projector |
| CN104081275A (en) * | 2012-01-25 | 2014-10-01 | 国际商业机器公司 | Three dimensional image projector |
| GB2513783A (en) * | 2012-01-25 | 2014-11-05 | Ibm | Three dimensional image projector |
| GB2514038A (en) * | 2012-01-25 | 2014-11-12 | Ibm | Three dimensional image projector with two color imaging |
| CN104081275B (en) * | 2012-01-25 | 2017-08-29 | 国际商业机器公司 | Method and system for projected image |
| US8944604B2 (en) | 2012-01-25 | 2015-02-03 | International Business Machines Corporation | Three dimensional image projector with dual light modulators |
| US8950869B2 (en) | 2012-01-25 | 2015-02-10 | International Business Machines Corporation | Three dimensional image projector with two color imaging |
| US8955975B2 (en) | 2012-01-25 | 2015-02-17 | International Business Machines Corporation | Three dimensional image projector with circular light polarization |
| US8960913B2 (en) | 2012-01-25 | 2015-02-24 | International Busniess Machines Corporation | Three dimensional image projector with two color imaging |
| US8960912B2 (en) | 2012-01-25 | 2015-02-24 | International Business Machines Corporation | Three dimensional image projector |
| US8985785B2 (en) | 2012-01-25 | 2015-03-24 | International Business Machines Corporation | Three dimensional laser image projector |
| WO2013110238A1 (en) * | 2012-01-25 | 2013-08-01 | International Business Machines Corporation | Three dimensional image projector with two color imaging |
| CN104081278B (en) * | 2012-01-25 | 2017-08-25 | 国际商业机器公司 | Method, system and projecting apparatus for projected image |
| WO2013110235A1 (en) * | 2012-01-25 | 2013-08-01 | International Business Machines Corporation | Three dimensional image projector |
| GB2513783B (en) * | 2012-01-25 | 2016-12-21 | Ibm | Image projector |
| US9016873B2 (en) | 2012-01-25 | 2015-04-28 | International Business Machines Corporation | Three dimensional image projector stabilization circuit |
| US9039207B2 (en) | 2012-01-25 | 2015-05-26 | International Business Machines Corporation | Three dimensional image projector stabilization circuit |
| US9104048B2 (en) | 2012-01-25 | 2015-08-11 | International Business Machines Corporation | Three dimensional image projector with single modulator |
| US9325977B2 (en) | 2012-01-25 | 2016-04-26 | International Business Machines Corporation | Three dimensional LCD monitor display |
| US9004700B2 (en) | 2012-01-25 | 2015-04-14 | International Business Machines Corporation | Three dimensional image projector stabilization circuit |
| US9325978B2 (en) | 2012-01-25 | 2016-04-26 | International Business Machines Corporation | Three dimensional LCD monitor display |
| CN103576435B (en) * | 2012-08-03 | 2016-10-12 | 精工爱普生株式会社 | Scialyscope |
| CN103576435A (en) * | 2012-08-03 | 2014-02-12 | 精工爱普生株式会社 | Projector |
| CN103006180A (en) * | 2012-12-01 | 2013-04-03 | 清华大学深圳研究生院 | Integrated vein search projection device and system |
| CN104238133A (en) * | 2014-09-19 | 2014-12-24 | 西安中科晶像光电科技有限公司 | Three-dimensional desktop display system based on polarization |
| CN104536147A (en) * | 2015-01-08 | 2015-04-22 | 四川大学 | Optical switching system based on spatial light modulator |
| CN111896937B (en) * | 2020-08-24 | 2024-03-26 | 西安炬光科技股份有限公司 | Optical module for light beam superposition and laser system |
| CN111896937A (en) * | 2020-08-24 | 2020-11-06 | 西安炬光科技股份有限公司 | Optical module for light beam superposition and laser system |
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Application publication date: 20110504 |