Lightweight inverted telephoto type wide angle lens system

Details Lightweight inverted telephoto type wide angle lens system Lightweight inverted telephoto type wide angle lens system

1979-09-26

1981-09-01

Clark, Conrad J.

G02B 1304

Patent

active

042868475

ABSTRACT:
The present invention is directed to an inverted telephoto type wide angle lens system having eight lens groups and eight lens elements which fulfill the following conditions:

REFERENCES:
patent: 3862794 (1975-01-01), Fujii
patent: 3870400 (1975-03-01), Yamashita
patent: 4062622 (1977-12-01), Sugiyama

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