Focus detection device

Details Focus detection device Focus detection device

2005-08-30

2005-08-30

Perkey, W. B. (Department: 2851)

Photography

With exposure objective focusing means, focusing aid, or...

Having accumulation photoarray and time control means

C396S123000

Reexamination Certificate

active

06937818

ABSTRACT:
A focus detection device includes a plurality of line sensors, a plurality of monitor sensors provided adjacent to respective the line sensors, wherein each of the monitor sensors monitors the quantity of light received by a corresponding the line sensor, and a control device which controls the driving of the line sensors and the monitor sensors in a desired combination thereof. The line sensors, the monitor sensors, and the control device are provided on a common circuit board.

REFERENCES:
patent: 5483318 (1996-01-01), Hamada et al.
patent: 6198506 (2001-03-01), Nakata et al.
patent: 6614476 (2003-09-01), Sato et al.
patent: 6657669 (2003-12-01), Sato et al.
U.S. Appl. No. 10/778,023to Nakata et al., entitled “Focus Detection Device,” which was filed on filed Feb. 17, 2004.
U.S. Appl. No. 10/778,130to Nakata et al., entitled “Focus Detection Device,” which was on filed Feb. 17, 2004.
U.S. Appl. No. 10/778,076 to Nakata et al, entitled “Focus Detention Device,” which was on filed Feb. 17, 2004.

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