Light-intercepting device in a camera

Details Light-intercepting device in a camera Light-intercepting device in a camera

1980-05-23

1981-11-03

Adams, Russell E.

354249, 354250, 354264, 354274, G03B 940

Patent

active

042982650

ABSTRACT:
In a light-intercepting device in a camera including a plurality of flat light-intercepting vanes disposed on a light-intercepting plane crossing an optical path, the light-intercepting vanes comprise a substrate formed of titanium or a titanium alloy, and a hardened layer of titanium compound formed on the surface of the substrate.

REFERENCES:
patent: 3078776 (1963-02-01), Okabe
patent: 3903539 (1975-09-01), Kitai et al.

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