Photography – With exposure objective focusing means – focusing aid – or... – Plural focusing or rangefinding areas
Patent
1994-07-05
1996-10-22
Adams, Russell E.
Photography
With exposure objective focusing means, focusing aid, or...
Plural focusing or rangefinding areas
396 99, 396121, G03B 1336
Patent
active
055682227
ABSTRACT:
A focus detecting apparatus detecting focus to a plurality of areas receives outputs from a plurality of sensors. A processing circuit evaluates the plurality of output signals from the respective plurality of sensors, and independently evaluates whether or not each of the output signals fulfills each of a plurality of predetermined judgement conditions. A selection circuit (i) determines the total number of judgement conditions fullfilled by each of the output signals, (ii) selects the output from one of the plurality of sensors on the basis of the determination.
REFERENCES:
patent: 4716434 (1987-12-01), Taniguchi et al.
patent: 4720724 (1988-01-01), Yokoo
patent: 4829331 (1989-05-01), Aihara
patent: 4851657 (1989-07-01), Taniguchi et al.
patent: 4933700 (1990-06-01), Ikeda et al.
patent: 4980716 (1990-12-01), Suzuki et al.
patent: 5005041 (1991-04-01), Suda et al.
patent: 5051766 (1991-09-01), Nonaka et al.
patent: 5053801 (1991-10-01), Ishida et al.
patent: 5068682 (1991-11-01), Utagawa
patent: 5070352 (1991-12-01), Kotani et al.
patent: 5091742 (1992-02-01), Fukahori et al.
patent: 5121151 (1992-06-01), Kawabata et al.
Adams Russell E.
Canon Kabushiki Kaisha
LandOfFree
Focus detecting apparatus detecting focus to a plurality of area 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 detecting apparatus detecting focus to a plurality of area, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focus detecting apparatus detecting focus to a plurality of area will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2362698