Compact wide-angle photographic lens system with a short overall

Details Compact wide-angle photographic lens system with a short overall Compact wide-angle photographic lens system with a short overall

1975-05-13

1977-07-12

Corbin, John K.

350223, 350228, G02B 304

Patent

active

040350630

ABSTRACT:
A compact wide-angle photographic lens system with a short overall length comprising a transparent plate member having at least one surface formed as an aspherical surface expressed by the following formulas for which aberrations are corrected favorably.

REFERENCES:
patent: 2762262 (1956-09-01), Bertele
patent: 2833181 (1958-05-01), Bertele
patent: 3028793 (1962-04-01), Bousky et al.

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