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1. 发明授权

US4623237A Automatic focusing device 失效
标题翻译：自动对焦装置
公开(公告)号：US4623237A
公开(公告)日：1986-11-18
申请号：US752170
申请日：1985-07-03
申请人： Naoya Kaneda , Youichi Iwasaki , Masamichi Tohyama
发明人： Naoya Kaneda , Youichi Iwasaki , Masamichi Tohyama
IPC分类号： G01S7/497 , G02B7/34 , G03B3/00
CPC分类号： G02B7/34 , G01S7/497
摘要： An automatic focusing device having a light projecting device, a light receiving device arranged to detect a reflection light quantity reflected by an object to be photographed as a result of light projection by the light projecting device and a distance measuring device arranged to measure a distance to the object by the reflection light quantity received by the light receiving device is capable of adequately performing a focusing operation even in cases where the reflection light quantity is at a level too low for the distance measuring device to give any result of distance measurement. This advantage is attained by the following arrangement: (i) the automatic focusing device is provided with a current control device which is arranged to increase the power of a light flux to be emitted from the light projecting device; (ii) a lens driving operation is brought to a stop in the event of an object of a low reflection factor; (iii) the light quantity accumulating time of the light receiving means can be lengthened; or (iv) a comparison level can be lowered.
摘要翻译：一种具有投光装置的自动对焦装置，受光装置，被配置为检测由所述投光装置的光投射而被被拍摄物体反射的反射光量;以及距离测量装置，其被配置为测量与即使在距离测量装置的反射光量处于太低的水平的情况下，由光接收装置接收到的反射光量的物体也能够适当地执行聚焦操作，以给出距离测量的任何结果。该优点通过以下配置来实现：（i）自动聚焦装置设置有电流控制装置，该电流控制装置被布置成增加从光投射装置发射的光束的功率; （ii）在反射系数低的物体的情况下使透镜驱动动作停止; （iii）光接收装置的光量累积时间可以延长; 或（iv）可以降低比较水平。

2. 发明授权

US5608457A Video camera apparatus 失效
标题翻译：摄像机
公开(公告)号：US5608457A
公开(公告)日：1997-03-04
申请号：US535375
申请日：1995-09-28
申请人： Masamichi Tohyama , Yutaka Kohtani
发明人： Masamichi Tohyama , Yutaka Kohtani
IPC分类号： H04N5/232 , H04N5/225
CPC分类号： H04N5/23209
摘要： A video camera apparatus comprises a camera unit, a lens unit detachable from the camera unit and a communication circuit for communicating control information between a computer of the camera unit and a computer of the lens unit, wherein at least one of the camera unit and the lens unit comprises a memory for storing information indicating a version of the control information by which both of the camera unit and the lens unit can communicate with each other for control, and the information representing the version can be transmitted by the memory to the other unit to vary or select the control command or contents of the control command.
摘要翻译：摄像机装置包括摄像机单元，可从照相机单元拆卸的透镜单元和用于在相机单元的计算机和透镜单元的计算机之间传送控制信息的通信电路，其中，相机单元和透镜单元包括存储器，用于存储指示相机单元和透镜单元两者可以彼此通信以控制的控制信息的版本的信息，并且表示版本的信息可以由存储器发送到另一单元改变或选择控制命令或控制命令的内容。

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