发明名称 |
Automatic exposure control device |
摘要 |
The present invention relates to an exposure control automatic device for a camera. A shutter controls the amount of the exposure; a detector detects the operation speed of the shutter and calculator device compares an output of the detector with a predetermined speed information to determine the exposure time.
|
申请公布号 |
US4907027(A) |
申请公布日期 |
1990.03.06 |
申请号 |
US19880240359 |
申请日期 |
1988.09.01 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KOBE, TAKASHI;OHTSUKA, MASANORI |
分类号 |
G03B7/097;G03B7/093;G03B9/24 |
主分类号 |
G03B7/097 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|