Binocular eyepiece

Details Binocular eyepiece Binocular eyepiece

1983-11-03

1987-07-14

Corbin, John K.

350 9618, G02B 2504

Patent

active

046799125

ABSTRACT:
A wide-field binocular eyepiece preferably for use with a flat image display system. The eyepiece includes a biconvex thick lens having concentric spherical lens surfaces whose radii are selected to satisfy the aplanatic condition. To minimize chromatic aberration, the biconvex thick lens may be formed of a plurality of cemented elements having indices which are close to each other but having respective different dispersions.

REFERENCES:
patent: 3166623 (1965-01-01), Waidelich
patent: 3658412 (1972-04-01), Seaman

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