发明名称 |
Camera system having a flash device capable of performing a high speed synchronized photography |
摘要 |
A camera system includes a camera device and a flash device. The camera device has a first mode where a control aperture value and a control shutter speed are automatically determined; and a second mode where the operator is allowed to determine either a control aperture value or a control shutter speed. The flash device is capable of emitting an instantaneous flash light and a prolonged flash light. The camera device includes a distance calculator operable to calculate a distance to an object and a light intensity calculator operable to calculate an intensity of a prolonged flash light for flash photography based on the calculated distance, a focal plane shutter having a front blind and a rear blind, and a controller operable to render the flash device emit a prolonged flash light at the calculated intensity from the start of travel of the front blind to the finish of travel of the rear blind.
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申请公布号 |
US5860029(A) |
申请公布日期 |
1999.01.12 |
申请号 |
US19970801453 |
申请日期 |
1997.02.18 |
申请人 |
MINOLTA CO., LTD. |
发明人 |
ICHIKAWA, TSUTOMU;OHMORI, SHIGETO;YAMAGUCHI, MOTOSHI;OOTSUKA, HIROSHI;KIOKU, KEIZO;OHNO, ATSUHISA |
分类号 |
G03B7/16;(IPC1-7):G03B15/02;G03B15/03 |
主分类号 |
G03B7/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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