OPTICALLY COUPLED IMAGE SCANNER
Original Publication Date: 1992-Jun-30
Included in the Prior Art Database: 2004-Apr-06
Xerox Disclosure Journal
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.