Finder optical system

Details Finder optical system Finder optical system

1992-01-29

1993-04-13

Hayes, Monroe H.

354221, 354225, G03B 1302

Patent

active

052027147

ABSTRACT:
A finder optical system of a camera comprises a main finder and an auxiliary finder. The main finder is constructed by a real image type finder having a main finder objective lens, an ocular lens system, and an optical system disposed between the main finder objective lens and the ocular lens system for forming an erect real image. An optical axis of the main finder objective lens is perpendicular to a vertical symmetry axis of an image pickup lens of the camera and is parallel to an optical axis of the image pickup lens. The auxiliary finder is constructed by a real image finder having an auxiliary finder objective lens and another optical system disposed between the auxiliary finder objective lens and the ocular lens system for forming an erect real image. An optical axis of the auxiliary finder objective lens is perpendicular to a lateral symmetry axis of the image pickup lens and is parallel to the optical axis of the image pickup lens. Another optical system is adapted in such a manner that an optical path of the auxiliary finder is led nearly on a real image forming plane of the main finder into a part of an optical path of the main finder.

REFERENCES:
patent: 3610123 (1971-10-01), Bellows
patent: 3643574 (1972-02-01), Moriyama et al.
patent: 4081809 (1978-03-01), Kuboshima
patent: 4165932 (1979-08-01), Asano et al.

Affiliated with

Also associated with

Rating

Finder optical system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1158590