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Proceedings Paper

High-sensitivity overwritable phase-change optical disk for PD systems
Author(s): Takeo Ohta; Kazumi Yoshioka; Hidemi Isomura; Tetsuya Akiyama; Ryoichi Imanaka
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Paper Abstract

Phase-change optical disks where the cooling rate has been reduced by design show about double the sensitivity of conventional disks and are capable of more than 500,000 overwrites. The disk layer materials are the same as for conventional phase-change disks. The disk diameter is 120 mm and the capacity 9is 650 MB single sided, the same capacity as a conventional CD-ROM. The new 'PD' concept drive has a simple optical unit and supports both 4X data rate CD-ROMs and the new phase-change overwritable disks.

Paper Details

Date Published: 8 September 1995
PDF: 10 pages
Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); doi: 10.1117/12.218723
Show Author Affiliations
Takeo Ohta, Matsushita Electric Industrial Co., Ltd. (Japan)
Kazumi Yoshioka, Matsushita Electric Industrial Co., Ltd. (Japan)
Hidemi Isomura, Matsushita Electric Industrial Co., Ltd. (Japan)
Tetsuya Akiyama, Matsushita Electric Industrial Co., Ltd. (Japan)
Ryoichi Imanaka, Matsushita Electric Industrial Co., Ltd. (Japan)


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

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