Apparatus for obtaining a light carrying information therewith

Details Apparatus for obtaining a light carrying information therewith Apparatus for obtaining a light carrying information therewith

1976-07-20

1978-05-02

Safourek, Benedict V.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358285, 358286, H04N 128

Patent

active

040878384

ABSTRACT:
An apparatus for obtaining an information-carrying light comprises a modulated beam generator emitting a beam having an intensity variable in accordance with a modulating signal applied thereto, a data sheet or original bearing thereon the data to be illuminated by the beam from the modulated beam generator, a photoelectric converter means for receiving a secondary light resulting from the data on the data sheet being illuminated by the beam emitted from the modulated beam generator, and a modulating signal generator for generating the modulating signal applied to the modulated beam generator in order that the quantity of light received by the photoelectric converter means may be substantially constant.

REFERENCES:
patent: 3770882 (1973-11-01), Stymber
patent: 3836709 (1974-09-01), Hutchison

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