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Proceedings Paper

Holographic labeling for automated identification
Author(s): Peter William McOwan; Andrew K. Powell; Ronald E. Burge
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Paper 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.

Paper Details

Date Published: 1 February 1991
PDF: 8 pages
Proc. SPIE 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition, (1 February 1991); doi: 10.1117/12.25312
Show Author Affiliations
Peter William McOwan, King's College London (United Kingdom)
Andrew K. Powell, King's College London (United Kingdom)
Ronald E. Burge, King's College London (United Kingdom)

Published in SPIE Proceedings Vol. 1384:
High-Speed Inspection Architectures, Barcoding, and Character Recognition
Michael J. W. Chen, Editor(s)

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