Focus detection device

Details Focus detection device Focus detection device

2006-05-23

2006-05-23

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C348S222100, C348S397100

Reexamination Certificate

active

07049571

ABSTRACT:
A focus detection device includes a plurality of line sensors, each having a plurality of pixels, the line sensor photoelectrically converting and integrating light from a photographic object received by each of the pixels so as to output the received light as an image signal; a plurality of monitor sensors provided adjacent to respective the line sensors, each of the monitor sensors monitoring an integrated value of the respective line sensors; an output terminal for externally outputting a monitor signal which is output from each of the monitor sensors and the image signal which is output from each of the line sensors; and an output selection device for selectively outputting any one of the monitor signal and the image signal from a common the output terminal.

REFERENCES:
patent: 6198506 (2001-03-01), Nakata
patent: 6614476 (2003-09-01), Sato et al.
patent: 6657669 (2003-12-01), Sato et al.

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