10X Two element eyepiece

Details 10X Two element eyepiece 10X Two element eyepiece

1975-08-25

1976-11-30

Corbin, John K.

350231, G02B 2500

Patent

active

039945707

ABSTRACT:
A two element 10X eyepiece has a field of view of about 44.degree. and provides a wide field (20mm) with lenses having curve-diameter ratios considered desirable from a manufacturing view.

REFERENCES:
patent: 873870 (1907-12-01), Konig
patent: 1479229 (1924-01-01), Erfle

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