发明名称 |
Camera with automatic focus and exposure control means |
摘要 |
A camera with an AF and AE control structure including a one-shot AF mode and a continuous AF mode, in which the operability and exposure control are improved. The camera includes a unit for detecting a focusing condition of an objective lens, defined by the relationship between a position of an object to be photographed against the lens and a focus point of the lens; a unit for focusing the lens in accordance with the detected focusing condition so that the lens is moved to the in-focus position, a first light measurement unit for measuring light at a spot area corresponding to a region of the object to be detected at the detecting unit, a second light measurement means for measuring averaged light at another area broader than the first area, and a unit for controlling exposure amount. The exposure control unit determines the exposure amount on the basis of the spot metering data in a one-shot AF mode, or the averaged light measuring data which is defined as a data at a time, at least, when the lens is adjacent to the in-focus position, in a continuous AF mode.
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申请公布号 |
US4792820(A) |
申请公布日期 |
1988.12.20 |
申请号 |
US19860905974 |
申请日期 |
1986.09.11 |
申请人 |
MINOLTA CAMERA KABUSHIKI KAISHA |
发明人 |
NORITA, TOSHIO;TANIGUCHI, NOBUYUKI;ISHIDA, TOKUJI;KARASAKI, TOSHIHIKO;HAMADA, MASATAKA |
分类号 |
G02B7/36;G03B7/091;(IPC1-7):G03B3/10 |
主分类号 |
G02B7/36 |
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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