发明授权
- 专利标题： Beam spot control device using a thin micro lens with an actuator
- 专利标题（中）： 光束点控制装置使用具有致动器的薄微透镜
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申请号： US786499申请日： 1985-10-11
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公开(公告)号： US4775967A公开(公告)日： 1988-10-04
- 发明人: Satoshi Shimada , Hiroshi Sasaki , Nobuyoshi Tsuboi , Hideki Nihei , Norifumi Miyamoto , Ito Tetsuo , Yoshio Sato , Atsumi Watanabe , Ryo Hiraga
- 申请人： Satoshi Shimada , Hiroshi Sasaki , Nobuyoshi Tsuboi , Hideki Nihei , Norifumi Miyamoto , Ito Tetsuo , Yoshio Sato , Atsumi Watanabe , Ryo Hiraga
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX59-211370 19841011; JPX59-216250 19841017; JPX60-34757 19850222
- 主分类号： G11B7/08
- IPC分类号： G11B7/08 ; G11B7/09 ; G11B7/135 ; G11B7/00
摘要：
In the present invention, a micro Fresnel lens in the shape of a thin film is used. A lens driving member constructed of piezoelectric transducers or of magnets and coils is disposed around the lens. The focus of the lens is adjusted by controlling applied voltages to the piezoelectric transducers or the coils.
公开/授权文献
- US5661254A System for protecting a target from missiles 公开/授权日：1997-08-26