Optoelectronic scanning device

Details Optoelectronic scanning device Optoelectronic scanning device

1978-03-01

1979-06-19

Smith, Alfred E.

Radiant energy

Luminophor irradiation

With ultraviolet source

250359, G01N 2138, G01N 2300

Patent

active

041587782

ABSTRACT:
An optoelectronic scanning device comprising two sets of photoresponsive elements adjusted to operate at different detection levels and aligned to scan materials marked with luminous paint and illuminated with ultraviolet light. The photo-elements are specially aligned to be optically responsive over an array of contiguous in-line domains and are coupled to trigger circuits to provide snap-action operation. The photo-elements and associated electrical components are heated and maintained at a constant temperature to ensure stable operation of the device.

REFERENCES:
patent: 3694658 (1972-09-01), Watson et al.
patent: 3800148 (1974-03-01), De Cock
patent: 3829690 (1974-08-01), Snyder
patent: 3877817 (1975-04-01), Ralston
patent: 3983403 (1976-09-01), Dahlstrom et al.

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