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Proceedings Paper

Flatness Characteristics Of Media For Optical Recording
Author(s): L. P . J. Hoogeveen; A. M. J. Spruijt
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Paper Abstract

In optical recording it is essential that the laser beam stays in focus on the sensitive layer of the optical disk. The focussing performance depends on the variations in the optical path during recording and on the ability of the objective lense assembly to correct for these deviations. The vertical displacement of optical media rotating at 8 Hz is corrected by servo-mechanics and servo electronics of the focusing objective lense assembly. Typical values for the vertical displacement due to media unflatness for the Philips - C.D.C. optical recording system, are:

Paper Details

Date Published: 10 November 1983
PDF: 6 pages
Proc. SPIE 0420, Optical Storage Media, (10 November 1983); doi: 10.1117/12.936061
Show Author Affiliations
L. P . J. Hoogeveen, Optical Media Laboratory (The Netherlands)
A. M. J. Spruijt, Optical Media Laboratory (The Netherlands)

Published in SPIE Proceedings Vol. 0420:
Optical Storage Media
Alan E. Bell; Albert A. Jamberdino, Editor(s)

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