Light intercepting mask of lens

Details Light intercepting mask of lens Light intercepting mask of lens

1990-02-06

1994-01-04

Arnold, Bruce Y.

Optical: systems and elements

Glare or unwanted light reduction

359614, 359738, 35419512, G02B 2700, G02B 908, G03B 118

Patent

active

052765520

ABSTRACT:
In a camera lens unit having a plurality of spaced lenses and a lens supporting frame which supports the lenses, so that an image of an object to be photographed formed by the lenses is focused on an image plane, a light intercepting mask, having an opening whose shape is substantially analogous to the shape of an image formed on the image plane is provided and is formed integrally with the lens supporting frame.

REFERENCES:
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patent: 4183661 (1980-01-01), Ohkura
patent: 4208102 (1980-06-01), Ohkura
patent: 4436415 (1984-03-01), Emoto
patent: 4461547 (1984-07-01), Ikari et al.
patent: 4576446 (1986-03-01), Kamata
patent: 4759618 (1988-07-01), Kamata
patent: 4911542 (1990-03-01), Nishio et al.
patent: 4918476 (1990-04-01), Tejima
patent: 5018832 (1991-05-01), Terunuma et al.
patent: 5034762 (1991-07-01), Kohmoto
patent: 5038162 (1991-08-01), Tejima
English language abstracts of Japanese Patents JP-63-286836, JP-1-140136 and JP-56-066809.

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