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1. 发明专利

JPS60212728A Logical operating device for deriving difference between pictures 失效
标题翻译：逻辑操作设备，用于提供图像之间的差异
公开(公告)号：JPS60212728A
公开(公告)日：1985-10-25
申请号：JP6974584
申请日：1984-04-06
申请人： Hamamatsu Photonics Kk
发明人： HARA TSUTOMU , SUZUKI YOSHIJI
IPC分类号： G02F1/03 , G02F1/05 , G02F3/00
CPC分类号： G02F1/0525
摘要： PURPOSE:To derive a difference between pictures by writing the picture on the surface of an electro-optical crystal by a charge. CONSTITUTION:A picture IA is supported on a picture placing base 22, and an image is formed on a photoelectric surface 31 of a space optical modulation tube 3. An electron flying to the part corresponding to image parts IA1, IA2 of the picture IA, a charge of the surface of its part becomes sigmapi, and as for the part IA3 in which no image exists, a positive charge sigmapi/2 is maintained. A picture IB is supported on the picture placing base 22, an image is formed on the photoelectric surface 31 of the space optical modulation tube 3 by an optical device, and the picture IB is written on an electrooptic crystal 33 by applying a write voltage for a prescribed time T from a terminal (a) of a controlling circuit 11. An electron flying and adheres to the part corresponding to image parts IB1, IB2 of the picture IB. The write time T is a period in which a charge of the part of IB1 reaches the positive charge sigmapi/2 accumulated uniformly in the preparation stage, and in this case, a charge of the part IB2 becomes zero. A picture is obtained by irradiating the charge image formed in this way by linearly polarized laser light, and observing light which has transmitted through a polarier 10.
摘要翻译：目的：通过在电光晶体的表面上通过电荷写入图像来导出图像之间的差异。构成：在图像放置基座22上支持图像IA，并且在空间光调制管3的光电表面31上形成图像。飞行到与图1A的图像部分IA1，IA2对应的部分的电子，其部分表面的电荷变为sigmapi，并且对于其中不存在图像的部分IA3，维持正电荷sigmapi / 2。在图像放置基座22上支持图像IB，通过光学装置在空间光调制管3的光电面31上形成图像，并且通过对电光晶体33施加写入电压来写入图像1B 来自控制电路11的端子（a）的规定时间T.电子飞行并粘附到对应于图1B的图像部分IB1，IB2的部分。写入时间T是在准备阶段IB1的一部分的电荷达到均匀累积的正电荷sigmapi / 2的时间段，在这种情况下，部分IB2的电荷变为零。通过用线性偏振激光照射以这种方式形成的电荷图像，并观察已经透射极化的光10获得图像。

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