- 专利标题： Optical modulation device and projector
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申请号： US09953362申请日： 2001-09-17
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公开(公告)号： US06603590B2公开(公告)日： 2003-08-05
- 发明人: Yasunori Ogawa , Nobuo Watanabe , Hiromi Saito , Shigeo Toda
- 申请人： Yasunori Ogawa , Nobuo Watanabe , Hiromi Saito , Shigeo Toda
- 优先权： JP10-254413 19880908; JP9-247299 19970911; JP10-31592 19980213
- 主分类号： G02F103
- IPC分类号： G02F103
摘要：
An optical modulation device is presented having a distance Wp from the end of an opposite substrate to the inner peripheral edge of a cover portion in a frame being set to be smaller than the distance W1 from the end of the opposite substrate to the inner peripheral edge of a first light-shielding portion (Wp
公开/授权文献
- US20020051276A1 Optical modulation device and projector 公开/授权日：2002-05-02
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