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Proceedings Paper

Optical Disc Substrate Using Photo-Curable Casting Resin
Author(s): Ryouichi Sudou; Hiroaki Miwa; Tetsuo Tajima; Shinkichi Horigome; Norio Ohta; Eiji Koyama
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Paper Abstract

The manufacture of high performance Φ 130 mm magneto-optical (MO) discs requires the substrates with low retardation, high heat resistance and low cost in the market. The molding methods for newly compounded photo-curable acrylic resin (PHC) were studied. Thus, the pre-grooved substrate using PHC resin has been developed for the MO disc, and is capable of fast molding by a simple machine. Carrier to noise ratio (C/N) characteristics and the reliability of the MO disc with the PHC substrate are almost equal to those of glass substrate.

Paper Details

Date Published: 2 June 1988
PDF: 5 pages
Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); doi: 10.1117/12.944615
Show Author Affiliations
Ryouichi Sudou, Hitachi, Ltd. (Japan)
Hiroaki Miwa, Hitachi, Ltd. (Japan)
Tetsuo Tajima, Hitachi, Ltd. (Japan)
Shinkichi Horigome, Hitachi, Ltd. (Japan)
Norio Ohta, Hitachi, Ltd. (Japan)
Eiji Koyama, Hitachi Maxell, Ltd. (Japan)

Published in SPIE Proceedings Vol. 0899:
Optical Storage Technology and Applications
Donald B. Carlin; Albert A. Jamberdino; Yoshito Tsunoda, Editor(s)

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