1 July 1990 A laser based high performance universal product code reader
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Proceedings Volume 1230, International Conference on Optoelectronic Science and Engineering '90; 12301D (1990) https://doi.org/10.1117/12.2294686
Event: The Marketplace for Industrial Lasers 1990, 1990, Chicago, IL, United States
Abstract
At present, more than 99% of the packages in the grocery stores have been marked by the manufacturer with laser scannable UPC symbols and the installation of laser based optical readers is expected to expand into all stores. This paper describes a laser based reader that was designed and engineered for reliable,high speed and safety uses in an ordinary store environment.Areas to be discussed are:laser/optics scan pattern generation,signal processor,characteristics and encodation of the UPC and the laser safety program.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Charles C. K. Cheng, Charles C. K. Cheng, } "A laser based high performance universal product code reader", Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 12301D (1 July 1990); doi: 10.1117/12.2294686; https://doi.org/10.1117/12.2294686
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