Optoelectronic reading pen

Details Optoelectronic reading pen Optoelectronic reading pen

1987-02-11

1989-01-24

Trafton, David L.

Registers

Coded record sensors

Particular sensor structure

235473, 250227, G06K 1300

Patent

active

048002577

ABSTRACT:
An optoelectronic reading pen for scanning optically encoded information, applied to an information carrier, particularly in the form of a bar or line code, including means for illuminating the information carrier and an optoelectronic sensor which receives the light reflected from the information carrier and converts the reflected light into an electric signal, wherein ambient light from the environment of the reading pen is collected and used for illuminating the information carrier. Thus, the current intake is drastically reduced by the fact that, instead of an internal LED light source, light from the environment is used for illuminating the information carrier.

REFERENCES:
patent: 3260849 (1966-07-01), Polye
patent: 3985999 (1976-10-01), Yoneyama
patent: 4528444 (1985-07-01), Hara et al.
patent: 4644155 (1987-02-01), Mochiznki et al.

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