Photo-taking lens having a filter

Details Photo-taking lens having a filter Photo-taking lens having a filter

1990-01-03

1993-07-06

Arnold, Bruce Y.

Optical: systems and elements

Lens

With variable magnification

359676, 359888, G02B 1514

Patent

active

052259366

ABSTRACT:
A photo-taking lens comprises a lens component which allows to exit therefrom a bundle of rays forming the image of an object, a diaphragm which is disposed on the object side of the lens component and has a variable aperture, and an optical filter which is disposed adjacently to the diaphragm and is formed in a curved shape.

REFERENCES:
patent: 4184749 (1980-01-01), Grossman
patent: 4763998 (1988-08-01), Tsuji et al.
patent: 4854681 (1989-08-01), Kato et al.
patent: 4892397 (1990-01-01), Horiuchi

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