发明公开
EP1306610A1 Lighting apparatus, liquid crystal display system using it and electronic equipment using the liquid crystal display system
失效
Beleuchtungsvorrichtung，diese beinhaltendeFlüssigkristallanzeigeund elektronischesGerät
- 专利标题： Lighting apparatus, liquid crystal display system using it and electronic equipment using the liquid crystal display system
- 专利标题（中）： Beleuchtungsvorrichtung，diese beinhaltendeFlüssigkristallanzeigeund elektronischesGerät
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申请号： EP03000644.9申请日： 1996-11-06
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公开(公告)号： EP1306610A1公开(公告)日： 2003-05-02
- 发明人: Miyashita, Satoru , Yokoyama, Osamu , Funamoto, Tatsuaki
- 申请人： SEIKO EPSON CORPORATION
- 申请人地址： 4-1, Nishishinjuku 2-chome Shinjuku-ku, Tokyo 163-0811 JP
- 专利权人： SEIKO EPSON CORPORATION
- 当前专利权人： SEIKO EPSON CORPORATION
- 当前专利权人地址： 4-1, Nishishinjuku 2-chome Shinjuku-ku, Tokyo 163-0811 JP
- 代理机构： Hoffmann, Eckart, Dipl.-Ing.
- 优先权： JP28771895 19951106; JP29148995 19951109; JP33738995 19951225; JP1210996 19960126; JP1903296 19960205
- 主分类号： F21V8/00
- IPC分类号： F21V8/00
摘要：
A lighting apparatus (10) comprises: light emitting means (322); light guiding means (307) which has a light-output-side surface and guides the light from said light emitting means (322) through said light-output-side surface toward a light receiving element (302) with an improved directivity; and direction changing means for changing the direction of the light which is output from said light guiding means (307) to a direction substantially perpendicular to said light receiving element (302). The direction changing means (321) includes a prism array which comprises a plurality of prisms, each of said prisms having an apex pointing to said light-output-side surface; wherein each of said prisms has a first surface for receiving the light and a second surface, said apex being formed by said first and second surfaces.
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