Photographic apparatus having a reflex optical system

Details Photographic apparatus having a reflex optical system Photographic apparatus having a reflex optical system

1975-03-03

1977-06-14

O'Connor, Edna M.

354 84, G03B 1912

Patent

active

040301109

ABSTRACT:
Photographic apparatus, preferably a camera, having a reflex optical system for exposing film units which include a transparent outer sheet or layer through which image-bearing light is transmitted to expose photosensitive materials within the film unit. A reflex mirror, forming part of the optical system, is arranged at an optimized position with respect to the camera exposure plane to prevent light rays reflected from the transparent outer sheet from impinging the mirror at an angle of incidence which would redirect the light rays back to the film unit thereby causing a second exposure or "ghost image".

REFERENCES:
patent: 1991768 (1935-02-01), Neumann
patent: 3543661 (1970-12-01), Rosen
patent: 3668991 (1972-06-01), Erlichman
patent: 3678831 (1972-07-01), Baker
patent: 3683770 (1972-08-01), Land et al.
patent: 3732099 (1973-05-01), Chen
patent: 3760704 (1973-09-01), Baker
patent: 3791274 (1974-02-01), Hansen
patent: 3800309 (1974-03-01), Land

Affiliated with

Also associated with

Rating

Photographic apparatus having a reflex 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 Photographic apparatus having a reflex optical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic apparatus having a reflex optical system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-13975