Anamorphic zoom lens

Details Anamorphic zoom lens Anamorphic zoom lens

1975-04-15

1976-11-09

Sacher, Paul A.

350176, 350177, G02B 1312

Patent

active

039907856

ABSTRACT:
The present invention relates to an anamorphic zoom lens of rear system intended for photography or projection, which, seen from the object, consists of an afocal zoom part, an afocal anamorphic lens system and an image forming lens system. The above mentioned anamorphic lens system consists of a front group at the side of the object and of a rear group at the side of the image plane, and is formed as an afocal system with the front group having positive power and the rear group having negative power. By means of this composition the relation between the position of the iris in the anamorphic lens and the anamorphic lens system is controlled in such a manner that the picture quality is improved.

REFERENCES:
patent: 3751136 (1973-08-01), Kirchoff

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