发明公开
EP3014356A1 DIRECTIONAL POLARIZATION PRESERVING SCREEN
审中-公开
DIREKTIONALER POLARISATIONSHALTENDER BILDSCHIRM
- 专利标题: DIRECTIONAL POLARIZATION PRESERVING SCREEN
- 专利标题(中): DIREKTIONALER POLARISATIONSHALTENDER BILDSCHIRM
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申请号: EP14818642.2申请日: 2014-06-30
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公开(公告)号: EP3014356A1公开(公告)日: 2016-05-04
- 发明人: COLEMAN, David A. , SHARP, Gary D.
- 申请人: RealD Inc. , Coleman, David A. , Sharp, Gary D.
- 申请人地址: 100 North Crescent Drive, Suite 200 Beverly Hills, CA 90210 US
- 专利权人: RealD Inc.,Coleman, David A.,Sharp, Gary D.
- 当前专利权人: RealD Inc.,Coleman, David A.,Sharp, Gary D.
- 当前专利权人地址: 100 North Crescent Drive, Suite 200 Beverly Hills, CA 90210 US
- 代理机构: Beck, Simon Antony
- 优先权: US201361841086P 20130628
- 国际公布: WO2014210594 20141231
- 主分类号: G03B21/56
- IPC分类号: G03B21/56 ; H04N5/74
摘要:
A directional polarization preserving front projection screen may be preferably produced using an engineered surface. Unlike statistical surfaces, engineered surfaces may provide locally specular reflections, with little to no bulk scatter, while substantially eliminating features smaller than a wavelength of illumination and thus true depolarization. Most, if not all, contours contributing to the slope probability density can be engineered to achieve a desired macroscopic gain profile. The screen may diffuse light by using locally specular reflections, in which a bias angle introduced to the gain profile of the screen may be determined by the slope of the ramps, and with resets that may be substantially hidden from projector illumination.
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