Information recording medium

Details Information recording medium Information recording medium

1995-08-18

1997-01-07

Ryan, Patrick

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428 642, 428 644, 428 645, 428 646, 420413, 4302701, 43027011, 43027012, 43027013, 4304951, 430445, 569283, 569288, B52B 500

Patent

active

055915000

ABSTRACT:
An information recording medium includes a transparent substrate, an interference layer formed on the transparent substrate, a recording layer formed on the interference layer, a reflective layer formed on the recording layer, and a coating resin formed on the reflective layer. The recording layer has a pit region and a mirror region. The reflectivity of the pit portion changes as a thickness of the recording layer changes. The reflectivity characteristic of the mirror region is selectively adjustable from that of the pit region within a range of thicknesses of the interference layer.

REFERENCES:
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patent: 5334433 (1994-08-01), Tominaga
patent: 5362538 (1994-11-01), Ohbayashi et al.
patent: 5418030 (1995-05-01), Tominaga et al.
Yamanaka et al.; "High Density Optical Recording by Super-resolution System"; International Symposium on Optical Memory 1989, 27D-17, pp. 99-100, Sep. 1989, Technical Digest.
Fukuhisa et al.; "Reproducing C/N Characteristic of High Density Magneto-Optic Disk Using Super Resolution Head"; Extended Abstracts of the 39th Meeting of the Japanese Soc. of Appl. Physics . . . ; 31p-L-6, p. 1002, Mar., 1992.
Ichiura et al.; "High Density Video Disc Using Super-resolution and Green Laser", Int'l Symposium on Optical Memory and Optical Data Storage '93, Tul. 4, pp. 10-11, Jul. 1993.
M. Terao et al.; "Oxidation Resistance of Pb-Te-Se Optical Recording Film"; Journal of Applied Physics 62 (3), p. 1029, 1987.
K. Ichihara et al.; "Optical Disk Medium"; Electronic Ceramics, vol. 18 (90), p. 5, Nov. 1987.
M. Mashita et al.; "Amorphous Te-C Films for an Optical Disk"; Proceedings SPIE Optical Disk Technology, vol. 329, pp. 190-194, 1982.
H. Yamazaki et al.; "Plasma Poymerized CS.sub.2 -Te Film for Laser Beam Memory"; 1984, Review of Electrical Communication Laboratories, vol. 32, No. 2, pp. 260-266.

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