Constant-speed scanning lens system

Details Constant-speed scanning lens system Constant-speed scanning lens system

1979-10-11

1981-05-26

Sacher, Paul A.

350 68, G02B 960

Patent

active

042694787

ABSTRACT:
A constant-speed scanning lens system comprising a first, second, third, fourth and fifth lens components, the first lens component being a positive meniscus lens arranged concave toward the incident side, the second lens component being a negative lens, the third, fourth and fifth lens components being positive meniscus lenses respectively arranged concave toward the incident side, the constant-speed scanning lens system having a small F number, wide field angle and compact size.

REFERENCES:
patent: 3749478 (1973-07-01), Nakagawa et al.

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