Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1977-07-26
1979-09-18
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
350206, 358 93, H04N 572
Patent
active
041685121
ABSTRACT:
In an optical system which is mounted on and used with an image pickup device for observing an object including a high brightness area therein, a pinhole is provided between the object and an imaging lens for separating the paths of the light rays from respective points of the object, and a filter which attenuates light from the high brightness area of the object which is separated by the pinhole.
REFERENCES:
patent: 2762259 (1956-09-01), Bouwers
patent: 3035489 (1962-05-01), Simons
patent: 3278752 (1966-10-01), Brixner
patent: 3476457 (1969-11-01), Nomarski
patent: 3563634 (1971-02-01), Parks
Hashimoto Akira
Honma Noriaki
Ito Yoshitoshi
Nagahara Shusaku
Takami Katsumi
Britton Howard W.
Hitachi , Ltd.
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