Photography – With exposure objective focusing means – focusing aid – or... – Plural focusing or rangefinding areas
Patent
1998-07-27
2000-03-07
Perkey, W. B.
Photography
With exposure objective focusing means, focusing aid, or...
Plural focusing or rangefinding areas
396159, G03B 1336, G03B 1505
Patent
active
06035139&
ABSTRACT:
In a camera in which a sensor receives reflected light from a subject during flash emission to control the amount of flash light emission on the basis of the output of the sensor, a plurality of focus detecting areas are provided within a light-receiving area of the sensor, and when one of the plurality of focus detecting areas is selected for focus adjustment, the camera sets an evaluation criterion for the output of the sensor in accordance with a position of the selected focus detecting area.
REFERENCES:
patent: 4164368 (1979-08-01), Miyata
patent: 4974007 (1990-11-01), Yoshida
patent: 5111231 (1992-05-01), Tokunaga
patent: 5381208 (1995-01-01), Takagi
patent: 5450162 (1995-09-01), Suzuki et al.
European Search Report dated Nov. 24, 1998.
Canon Kabushiki Kaisha
Perkey W. B.
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