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Proceedings Paper

High-performance horizontal side scanner using holographic technology
Author(s): Charles C. K. Cheng
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Paper Abstract

A new holographic technique has been used to make a compact, accurate and reliable POS scanner. The holo-window technology permits compact POS scanner optical scanning in horizontal plan while maintaining excellent performance in changing the scan direction, equalizing the scan velocity and collecting the signal light. The holo-window design and fabrication in the holographic optical element (HOE) for such a compact POS scanner are described in this paper. Additionally this new horizontal side scanning possesses large depth of field (greater than 10 inches), allows the grocery items to be scanned horizontally thus eliminating the commonly experienced carpal tunnel syndrome (CTS) hand injuries of the checkers. This newly designed POS scanner has been recognized by industry as the standard for the future POS scanning configuration.

Paper Details

Date Published: 18 June 1998
PDF: 6 pages
Proc. SPIE 3422, Input/Output and Imaging Technologies, (18 June 1998); doi: 10.1117/12.311093
Show Author Affiliations
Charles C. K. Cheng, Fujitsu (United States)


Published in SPIE Proceedings Vol. 3422:
Input/Output and Imaging Technologies
Yusheng Tim Tsai; Teh-Ming Kung; Jan Larsen, Editor(s)

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