Focus detection device

Details Focus detection device Focus detection device

2005-07-26

2005-07-26

Perkey, W. B. (Department: 2851)

Photography

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

Having accumulation photoarray and time control means

C396S121000

Reexamination Certificate

active

06922526

ABSTRACT:
A focus detection device includes line sensors which each photoelectrically convert and integrate light from an object so as to output the received light as an image signal; monitor sensors provided adjacent to the line sensors; a control device which controls an integration operation of a predetermined line sensor and a predetermined monitor sensor; and a detection device which detects that a monitor signal of each of the monitor sensors reaches a predetermined termination value for terminating integration of the corresponding line sensor after the control device allows the predetermined line sensor and monitor sensor to start the integration. The control device outputs a first termination signal from a first control terminal when the detection device detects the monitor signal first reaching the termination value, and thereafter outputs integration termination information of the respective monitor sensors detected sequentially from the first control terminal.

REFERENCES:
patent: 5151732 (1992-09-01), Akashi et al.
patent: 5218395 (1993-06-01), Taniguchi et al.
patent: 5758210 (1998-05-01), Hamada et al.
patent: 5845155 (1998-12-01), Nakata et al.
patent: 6198506 (2001-03-01), Nakata et al.
patent: 6310649 (2001-10-01), Hagiwara
patent: 6614476 (2003-09-01), Sato et al.
patent: 6657669 (2003-12-01), Sato et al.
patent: 6871018 (2005-03-01), Nakata

Affiliated with

Also associated with

Rating

Focus detection device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Focus detection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focus detection device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3430123