Browse Prior Art Database

OPTICALLY COUPLED IMAGE SCANNER

IP.com Disclosure Number: IPCOM000026494D
Original Publication Date: 1992-Jun-30
Included in the Prior Art Database: 2004-Apr-06

Publishing Venue

Xerox Disclosure Journal

Abstract

This proposal describes a method to optically couple an image array electronics on a scanning element of a scanner with processing and storage electronics on a fired portion of the scanner mechanism thereby eliminating the multiple wire high speed data lines. Image or timing data is transmitted by LEDs (or laser diodes) mounted on the fixed portion of the scanning mechanism. These optical "beams" are parallel to the scanning axis and thus maintain optical alignment during scanning. A multitude of these transmitterkeceptor pairs can be mounted along the carriage provided that they are prevented from crosstalking by proper limitation of transmittance and acceptance angle and/or selective spectral filtration.