发明名称 |
PHOTO-DRIVEN LIGHT BEAM DEFLECTING APPARATUS |
摘要 |
A photo-driven optical deflecting apparatus in which a light beam is deflected by using only light beam(s), comprising (a) a dielectric substrate having "photovoltaic effect"; (b) one or more first couples of electrodes formed in or on at least a portion of the surface(s) of said substrate so as to polarize the portion(s) positioned between said couple(s) of the electrodes formed thereby; (c) one or more photo-driving or photo-receiving elements provided at least in the polarized portion(s) of the surface of said dielectric substrate, having a polarization direction oriented in one direction, and having photovoltaic effect so as to generate a voltage between said electrodes; (d) a dielectric and transparent prism having "electrooptic effect" through which a light beam to be deflected is passed and deflected, provided on the surface of said substrate, having a second couple of electrodes provided on a couple of the surfaces of the prism, which surfaces are parallel to the optic axis; and a polarizer provided on the surface through which said beam enters; (d) leads electrically connecting said first electrodes to said second electrodes; the light beam to be deflected enters through said polarizer into said prism through which the light beam passes to be deflected; and said prism being operated directly by the photovoltage generated by said photo-driving element(s).
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申请公布号 |
US5202790(A) |
申请公布日期 |
1993.04.13 |
申请号 |
US19900530294 |
申请日期 |
1990.05.30 |
申请人 |
MITSUBISHI MINING AND CEMENT COMPANY, LTD. |
发明人 |
UCHINO, KENJI;HIKITA, KAZUYASU;TANAKA, YOSHIAKI;ONO, MIKIYA |
分类号 |
G02F1/29 |
主分类号 |
G02F1/29 |
代理机构 |
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代理人 |
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地址 |
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