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Proceedings Paper

Design Rules For Holographic Optical Scanning Elements
Author(s): H. P. Herzig; R. Dandliker
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Paper Abstract

An analytical method for the design of holographic optical elements (HOE) for focussing laser scanners with minimum aberrations and optimum scan line definition is reported. It can be shown analytically, using second order (paraxial) approximation, that a circular motion of the HOE cannot generate a straight line in space without astigmatism of the focal spot. Accepting a slightly curved scan line, the astigmatism can be compensated. Experimental results for HOE with a wavelength shift between recording and reconstruction are demonstrated. The required aspherical wavefronts for the recording are realized with the help of computer generated holograms (CGH).

Paper Details

Date Published: 6 October 1987
PDF: 6 pages
Proc. SPIE 0812, Progress in Holography, (6 October 1987); doi: 10.1117/12.941620
Show Author Affiliations
H. P. Herzig, University of Neuchatel (Switzerland)
R. Dandliker, University of Neuchatel (Switzerland)

Published in SPIE Proceedings Vol. 0812:
Progress in Holography
Jean P. L. Ebbeni, Editor(s)

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