Telephoto lens system

Details Telephoto lens system Telephoto lens system

1981-12-07

1984-03-06

Arnold, Bruce Y.

350464, G02B 962, G02B 1302

Patent

active

044350490

ABSTRACT:
A telephoto lens system is disclosed comprising first, second and third positive meniscus lens components each having the convex surface on the object side, a fourth negative meniscus lens component having the convex surface on the object side, a fifth positive or negative cemented meniscus lens component having the convex surface on the image side and a sixth positive lens component. This telephoto lens system has an f-number of about F/2, a telephoto ratio of about 1.1 and a high performance and is compact.

REFERENCES:
patent: 3738739 (1973-06-01), Glatzel et al.
patent: 3948584 (1976-04-01), Basista et al.
patent: 3997248 (1976-12-01), Fujii

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