Short focal length optical system with large aperture

Details Short focal length optical system with large aperture Short focal length optical system with large aperture

1976-07-27

1977-12-27

Clark, Conrad J.

350220, G02B 934, G02B 962

Patent

active

040652050

ABSTRACT:
This invention relates to a large aperture optical system of short focal length primarily intended for efficiently transmitting monochromatic light rays in optical instruments with an extraordinarily high degree of correction over a prescribed field.

REFERENCES:
patent: 3915559 (1975-10-01), Fleischman
patent: 3942877 (1976-03-01), Fleischman
patent: 3944338 (1976-03-01), Fleishman

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