发明授权
- 专利标题： Projecting head mechanism of a projecting machine
- 专利标题（中）： 投影机的投影头机构
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申请号： US839076申请日： 1997-04-23
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公开(公告)号： US5741056A公开(公告)日： 1998-04-21
- 发明人: Tom Liu
- 申请人： Tom Liu
- 申请人地址： TWX Taipei Hsien
- 专利权人： Primax Electronics Ltd.
- 当前专利权人： Primax Electronics Ltd.
- 当前专利权人地址： TWX Taipei Hsien
- 主分类号： G03B21/132
- IPC分类号： G03B21/132 ; G03B21/16 ; G03B21/14
摘要：
A projecting head mechanism of a projecting machine adapted to project an image generated by a non-reflective document is disclosed. A thermo-conducting metal piece is installed in the projecting head mechanism and the internal surface area of a projecting mirror is coated with silicon compound for evenly and repidly distributing the heat generated by the light beam received by the projecting mirror over the surface area of the projecting mirror, so that the heat will not be concentrated on a spot to damage the projecting machine.
公开/授权文献
- US4662924A Method for molding calcium phosphate type glass 公开/授权日：1987-05-05
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