Viewfinder for camera

Details Viewfinder for camera Viewfinder for camera

1992-04-21

1993-11-02

Gray, David M.

G03B 1314

Patent

active

052587924

ABSTRACT:
This invention provides a viewfinder which is mounted separately from a taking lens on a camera and wherein the occupying space of a parallax-correcting prism is minimized to arrange freely its optical design. And also, this invention provides a viewfinder decreasing the difference of the diopter and the fuzziness of the image between normal photographing mode and macro photographing mode. To achieve these objects, this viewfinder comprises a prism arranged in the optical path of said viewfinder to correct the parallax, and a driving mechanism to slide said prism in the direction normal to the axis of said lens system.

REFERENCES:
patent: 3836934 (1974-09-01), Suzuki et al.
patent: 4129369 (1978-12-01), Kobayashi et al.
patent: 4164369 (1979-08-01), Urano et al.
patent: 4219264 (1980-08-01), Rodeck
patent: 4924247 (1990-05-01), Suzuki et al.
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 4967219 (1990-10-01), Morisawa et al.
patent: 5117247 (1982-05-01), Nakai et al.
patent: 5160954 (1992-11-01), Suzuki et al.
"Parallax Correction" (Ruben), Research Disclosure, vol. 2244, No. 249, p. 57, Jan. 1985.

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