Photography – With exposure objective focusing means – focusing aid – or... – Plural focusing or rangefinding areas
Reexamination Certificate
2011-05-17
2011-05-17
Perkey, W.B. (Department: 2862)
Photography
With exposure objective focusing means, focusing aid, or...
Plural focusing or rangefinding areas
C396S123000, C396S127000, C348S351000, C348S353000, C348S354000, C250S201200, C250S201700
Reexamination Certificate
active
07945151
ABSTRACT:
A focus control method is provided that performs focus control by sensing a plurality of images of an object while moving a position of a focusing lens and determining in-focus positions in auto focusing areas located at a plurality of positions. The focus control method calculates an in-focus position of the focusing lens based on the focusing lens position at the time of reading an image signal of each of the auto focusing areas and a degree of focused state of each of the auto focusing area that is based on the image signal of each of the auto focusing areas.
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Adams Bret
Canon Kabushiki Kaisha
Canon U.S.A. Inc. I.P. Division
Perkey W.B.
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