Process for preparing optical recording material

Details Process for preparing optical recording material Process for preparing optical recording material

1989-08-28

1991-08-20

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430141, 430153, 430156, 430273, 430275, 430945, 430495, 430 14, G03K 162, G03K 176

Patent

active

050413562

ABSTRACT:
An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening portions, and (III) a reflective metallic thin film layer provided on the recording layer; as well as a process therefor. The invention also includes an optical card comprising the optical recording material provided on a card substrate. In the cases of the optical recording material and the optical card, it is possible to readily carry out high density recording, the alternation of written informaton is difficult, and the written information can be read out on a basis of the difference in light reflectivity.

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