Photography – With exposure objective focusing means – focusing aid – or... – Processing circuit
Reexamination Certificate
2011-08-09
2011-08-09
Blackman, Rochelle-Ann J (Department: 2862)
Photography
With exposure objective focusing means, focusing aid, or...
Processing circuit
C348S350000, C250S201800
Reexamination Certificate
active
07995910
ABSTRACT:
A focal point detector includes: a condenser lens for transmitting a light image from an optical system; and a distance measurement sensor group for receiving a luminous flux which has passed through the condenser lens. The sensor group includes a first distance measurement sensor pair for receiving divided beams of the luminous flux for a first focus detection region which is located off the center of a shooting region. The first distance measurement sensor pair includes first and second distance measurement sensors. The first focus detection region extends in a first direction in the shooting region from a position where the first focus detection region is spaced from the center in the first direction and also in a second direction. The first and second distance measurement sensors are spaced from each other and arranged at different angles in the direction associated with the first direction on the sensor arrangement surface.
REFERENCES:
patent: 2007/0109440 (2007-05-01), Hamano
patent: 2003-107323 (2003-04-01), None
patent: 2007-139935 (2007-06-01), None
Blackman Rochelle-Ann J
Lerner David Littenberg Krumholz & Mentlik LLP
Sony Corporation
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