Optical image reading device

Details Optical image reading device Optical image reading device

1988-12-29

1990-04-17

Pitts, Harold I.

Registers

Systems controlled by data bearing records

Mechanized store

235385, G06K 1500

Patent

active

049182978

ABSTRACT:
An image reading device includes a reading window which an article is set to face, a main light source for emitting first light beam which is emitted via the reading window to a limited external space to scan the article, and an image detection circuit for reading a bar code formed on an article from the first light beam reflected on the article placed within the limited external space and has traveled via the reading window. The image reading device further includes a light source control circuit for detecting that no article is set within the limited external space, to thereby inhibit the activation of the main light source.

REFERENCES:
patent: 4838383 (1989-06-01), Saito

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