公开(公告)号：US3721166A

公开(公告)日：1973-03-20

申请号：US3721166D

申请日：1970-11-13

Applicant: MINOLTA CAMERA KK

Inventor： YANAGI A ,  KAKUTA S ,  YATA K

IPC: G03B9/34 ,  G03B9/58 ,  G03B7/08 ,  G03B9/62

CPC classification number: G03B9/34 ,  G03B9/58

Abstract: Circuitry is provided for determining the time delay for release of a shutter curtain from a cocked position to compensate for exposure errors generated by the overlapping of first and second shutter curtains in their cocked positions. The non-uniformity between different shutter mechanisms is corrected by adjustment of a variable resistance. A switching circuit responsive to a voltage related to the brightness of an object as well as the required compensation releases the second curtain to terminate the exposure.

Abstract translation: 提供电路，用于确定用于从快门位置释放快门帘幕的时间延迟，以补偿由第​​一和第二快门帘帘片在其翘起位置中的重叠而产生的曝光误差。 通过调整可变电阻来校正不同快门机构之间的不均匀性。 响应于与物体的亮度相关的电压的开关电路以及所需的补偿释放第二帘以终止曝光。