Camera having a focus state detection device

Details Camera having a focus state detection device Camera having a focus state detection device

1987-12-29

1988-11-22

Perky, W. B.

G03B 310

Patent

active

047869321

ABSTRACT:
A camera having a focus state detection device, or more particularly a camera which effects searching to escape from disability of focus state detection by reciprocating a lens at least one reciprocation when the camera cannot detect the focus state, is disclosed. Once the searching has been effected, further searching is inhibited until in-focus or near in-focus state is attained in the focusing operation.

REFERENCES:
patent: 4314748 (1982-02-01), Kawabata et al.
patent: 4416523 (1983-11-01), Kawabata
patent: 4459006 (1984-07-01), Sakai et al.
patent: 4472040 (1984-09-01), Kawabata
patent: 4500188 (1985-02-01), Kitagishi et al.
patent: 4617459 (1986-10-01), Akashi et al.
patent: 4671640 (1987-06-01), Akada et al.
patent: 4733262 (1988-03-01), Taniguchi et al.

Affiliated with

Also associated with

Rating

Camera having a focus state 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 Camera having a focus state detection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera having a focus state detection device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-437976