Compact galilean viewfinder

Details Compact galilean viewfinder Compact galilean viewfinder

1975-04-21

1976-07-20

Hix, L. T.

G03B 1306

Patent

active

039710521

ABSTRACT:
A compact Galilean viewfinder, having an objective comprising a plano-convex negative de-centered front element, with its optical axis below the central axis of the finder, and an eye lens comprising a plano-convex rear element of positive power that is de-centered with its optical axis below the central axis of the finder, in which the eye lens is tilted to reduce astigmatism and bent to reduce coma.

REFERENCES:
patent: 1178476 (1916-04-01), Becker
patent: 1210134 (1916-12-01), Becker
patent: 2124161 (1938-07-01), Cook et al.
patent: 3253528 (1966-05-01), Bing

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