Patent
1987-11-12
1989-06-13
Hix, L. T.
G03B 300
Patent
active
048396850
ABSTRACT:
A light receiving element of a rangefinding device, for example for use in a camera, comprises a photoconversion light receiving element of which the light receiving surface is provided with a thin saw-toothed masking layer of aluminum directly deposited thereon by vacuum evaporation.
REFERENCES:
patent: 4339185 (1982-07-01), Nakauchi et al.
patent: 4547074 (1985-10-01), Hinoda et al.
Ishiguro Minoru
Takahashi Minoru
Fuji Photo Film Co. , Ltd.
Gray David M.
Hix L. T,.
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