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1 February 1991 Holographic labeling for automated identification
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Proceedings Volume 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition; (1991) https://doi.org/10.1117/12.25312
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States
Abstract
The optical reading of labels encoding data in the form of a one dimensional barcode is a well developed technology. This paper presents a novel approach to the optical retrieval of a high volume of data contained in a new type of label. The labelling method uses the techniques of computer generated holography to encode the required two dimensional label data in the form of a digitally synthesised wavefront. This wavefront is optimally encoded using models based on optical holography and the calculated structure mechanically plotted into a new polymer based reflective substrate to form the label. The label is laser illuminated and the reflected wavefront optically reconstructed and decoded to remove the desired information.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter William McOwan, Andrew K. Powell, and Ronald E. Burge "Holographic labeling for automated identification", Proc. SPIE 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition, (1 February 1991); https://doi.org/10.1117/12.25312
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