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Proceedings Paper

Focus detection based on frustrated total reflection
Author(s): Ivan Q. Prikryl
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Paper Abstract

A new focus detection method based on filtering of the servo beam near the domain of frusterated total reflection is intoduced. The method naturally combines an unfocused, wide diameter servo beam with differential detection, making the focus servo of an optical drive extremely robust and dynamically stable.

Paper Details

Date Published: 8 September 1995
PDF: 8 pages
Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); doi: 10.1117/12.218715
Show Author Affiliations
Ivan Q. Prikryl, Most Manufacturing Inc. (United States)

Published in SPIE Proceedings Vol. 2514:
Optical Data Storage '95
Gordon R. Knight; Hiroshi Ooki; Yuan-Sheng Tyan, Editor(s)

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