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Proceedings Paper

Optical encoder based on a nondiffractive beam
Author(s): A. Lutenberg; F. Perez Quintián; M. A. Rebollo
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Paper Abstract

Nowadays most industrial and laboratory motion measuring equipment makes use of optical encoders to measure rotation and linear displacements with sub-micrometrical resolution. In this work we introduce a new design of an optical encoder based on a non diffractive beam, a binary amplitude grating and a monolithic photodetector. Two theoretical models of the system are proposed and implemented to obtain numerical results. The performance of the design is also investigated through experimental measurements. Finally, the experimental results are compared with the models predictions.

Paper Details

Date Published: 18 September 2007
PDF: 7 pages
Proc. SPIE 6667, Current Developments in Lens Design and Optical Engineering VIII, 666707 (18 September 2007); doi: 10.1117/12.731228
Show Author Affiliations
A. Lutenberg, Univ. de Buenos Aires (Argentina)
F. Perez Quintián, Univ. de Buenos Aires (Argentina)
M. A. Rebollo, Univ. de Buenos Aires (Argentina)


Published in SPIE Proceedings Vol. 6667:
Current Developments in Lens Design and Optical Engineering VIII
Pantazis Z. Mouroulis; Warren J. Smith; R. Barry Johnson, Editor(s)

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