Electronic image pickup apparatus

Details Electronic image pickup apparatus Electronic image pickup apparatus

2005-05-24

2005-05-24

Christensen, Andrew (Department: 2615)

Television

Camera, system and detail

Optics

C348S351000, C348S345000, C396S121000

Reexamination Certificate

active

06897899

ABSTRACT:
An electronic image pickup apparatus comprises a photographic optical system; solid state image pickup devices disposed on a plant where a subject image formed by subject beams which have passed through the photographic optical system is formed; a main mirror disposed between the photographic optical system and the solid state image pickup devices, wherein a part of the main mirror is formed of a half mirror to divide the subject beams which have passed through the photographic optical system into an observing beam and a focus detecting beam; a sub-mirror for reflecting the subject beam which has passed through the part of the main mirror; a focus detecting optical system for forming an image of the subject beam reflected by the sub-mirror on a partial area of the solid image pickup devices; and an electrical circuit for outputting focus detecting information based on image signals of the partial areas of the solid image pickup devices. The structure provides an electronic image pickup apparatus which contributes to the down-sizing of the apparatus and to the reduction of production cost by eliminating an image pickup device which is dedicated for focus detection.

REFERENCES:
patent: 4774539 (1988-09-01), Suda et al.
patent: 5262819 (1993-11-01), Ohtaka et al.
patent: 5615399 (1997-03-01), Akashi et al.
patent: 5654790 (1997-08-01), Uchiyama
patent: 5892578 (1999-04-01), Suda
patent: 6009280 (1999-12-01), Akamatsu et al.
patent: 20010045989 (2001-11-01), Onuki
patent: 07-281080 (1995-10-01), None
patent: 08-262564 (1996-10-01), None
patent: 09-274130 (1997-10-01), None
patent: 10-136244 (1998-05-01), None

Affiliated with

Also associated with

Rating

Electronic image pickup apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3453548