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1. 发明公开

EP2869570A1 Two-stage light modulation for high dynamic range 有权转让
标题翻译： Zweistufige Lichtmodulation mit Weitem Dynamikbereich
公开(公告)号：EP2869570A1
公开(公告)日：2015-05-06
申请号：EP14190220.5
申请日：2014-10-24
申请人： Christie Digital Systems Canada, Inc.
发明人： Perkins, Michael , Dewald, Duane Scott , Wainwright, Nathan
IPC分类号： H04N9/31
CPC分类号： H04N9/3105 , G02B13/0095 , G02B17/006 , G02B17/008 , G02B27/0927 , G03B21/2033 , G03B21/208 , H04N5/7416 , H04N9/3126 , H04N9/315 , H04N9/3155
摘要： An imaging apparatus (10) for two-stage light modulation in high-definition digital projection or cinema can include two light modulators (20,24). Each light modulator can include a multi-chip imaging system (40,66) coupled to a total internal reflection prism (TIR) system, which has a light input face and an on-state face. Relay optics (22) can be positioned between the two light modulators. The relay optics can be configured to defocus light received from the pre-modulator (20) and to provide defocused light to the prime modulator (24) using a substantially Gaussian pixel shaping function. The prime modulator (24) can be oriented to receive defocused light (60) from the relay optics (22) at the light input face (78) of its TIR prism system. The pre-modulator (20) can be oriented backwards, so as to receive source light (36) at the on-state face (54) of its TIR prism system and to output pre-modulated light (42) to the relay optics (22) via the light input face (52) of the TIR prism system.
摘要翻译：用于高分辨率数字投影或电影院中的两级光调制的成像装置（10）可以包括两个光调制器（20,24）。每个光调制器可以包括耦合到全内反射棱镜（TIR）系统的多芯片成像系统（40,66），其具有光输入面和导通状态面。继电器光学器件（22）可以位于两个光调制器之间。中继光学器件可被配置为使从前调制器（20）接收的光散焦并且使用基本高斯像素整形功能向主调制器（24）提供散焦光。主调制器（24）可以被定向成在其TIR棱镜系统的光输入面（78）处接收来自中继光学器件（22）的散焦光（60）。预调制器（20）可以向后定向，以便在其TIR棱镜系统的接通状态面（54）处接收源光（36）并将预调制光（42）输出到中继光学器件 22）经由TIR棱镜系统的光输入面（52）。

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