Viewfinder apparatus

Details Viewfinder apparatus Viewfinder apparatus

1984-04-02

1985-07-02

Henry, Jon W.

350540, 350252, 354225, G02B 2308, G02B 2310, G02B 2314, G03B 1306

Patent

active

045264449

ABSTRACT:
A viewfinder assembly fabricated virtually exclusively of injection molded plastics includes a housing, four lens groups, four mirrors for folding the optical path and providing for proper image orientation, and mirror retainers. All of the components are structured to snap-fit together such that the optical components of the assembly are automatically nominally positioned when placed connected in the housing. Adjustment features for lens tilt and framing are also provided and, as well, means for displaying visual information in the viewfinder field.

REFERENCES:
patent: 2800052 (1957-07-01), Bechtold
patent: 3379092 (1968-04-01), Papke
patent: 3575082 (1971-04-01), McClune
patent: 3661065 (1972-05-01), Yamazaki et al.
patent: 3800309 (1974-03-01), Land
patent: 4097881 (1978-06-01), Katagiri
patent: 4104663 (1978-08-01), Yamazaki et al.
patent: 4124858 (1978-11-01), Erlichman
patent: 4339188 (1982-07-01), Smith
patent: 4348090 (1982-09-01), Iizuka
patent: 4392732 (1983-07-01), Pizzuti

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