Large aperture wide angle lens system employing an aspherical su

Details Large aperture wide angle lens system employing an aspherical su Large aperture wide angle lens system employing an aspherical su

1975-02-21

1976-11-16

Sacher, Paul A.

350214, G02B 304, G02B 964

Patent

active

039920852

ABSTRACT:
A large aperture wide angle lens which employs such aspheric surfaces as satisfying the condition of

REFERENCES:
patent: 3039361 (1962-06-01), Baker
patent: 3622227 (1971-11-01), Shimuzu
patent: 3736049 (1973-05-01), Shimuzu

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