Character and picture reading device

Details Character and picture reading device Character and picture reading device

1982-04-05

1984-12-04

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

355 25, 355 82, G03B 2732

Patent

active

044866550

ABSTRACT:
A character reader is provided in the form of a plate having a light source and a photoconductive layer on either side of the light source. The photoconductive layers may be provided with optical plates and transparent covers, if desired. In use, the device may simultaneously read data from two sheets or pages of a book, for example. Also, the photoconductive layer may be formed on only one side of the light source in a configuration where there are provided two light sources and photoconductive layers which are hinged together so that they may be folded to confront one another with an original therebetween.

REFERENCES:
patent: 3224352 (1965-12-01), Valette et al.
patent: 3238859 (1966-03-01), Mauchly
patent: 3544713 (1970-12-01), Case
patent: 3712729 (1973-01-01), O'Brien

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