发明授权
- 专利标题： Optical apparatus and cooling method thereof
- 专利标题（中）： 光学装置及其冷却方法
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申请号： US454631申请日： 1995-05-31
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公开(公告)号： US5860719A公开(公告)日： 1999-01-19
- 发明人: Toshihiro Suzuki , Noriyuki Ohasi , Tsutomu Nagakari , Tetsuya Hamada , Hisashi Yamaguchi , Masaru Ishiwa
- 申请人： Toshihiro Suzuki , Noriyuki Ohasi , Tsutomu Nagakari , Tetsuya Hamada , Hisashi Yamaguchi , Masaru Ishiwa
- 申请人地址： JPX Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX6-157401 19940708; JPX6-157533 19940708
- 主分类号： F21V29/02
- IPC分类号： F21V29/02 ; G03B21/16 ; H04N5/74
摘要：
A light source such as a metal halide lamp is effectively cooled in an optical apparatus such as a liquid crystal projector. In an optical apparatus which includes a concave mirror 11, a light emitting section 12 arranged in a concave portion of the concave mirror along the optical axis and a cooling structure for cooling a periphery of the light emitting section, the cooling structure is provided with a means for generating an air flow 4, the direction of which is approximately perpendicular to the optical axis of the concave mirror 11, and a means for generating an air flow 5 circulating into the concave portion of the concave mirror 11.
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