Optical recording medium and production of the same

Details Optical recording medium and production of the same Optical recording medium and production of the same

1985-11-08

1987-08-11

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Dye image from radiation sensitive dye or dye former by dry...

Composition or product

430338, 430962, 430945, 430935, 430961, G03C 1733

Patent

active

046861696

ABSTRACT:
An optical recording medium comprising a substrate and an information recording layer which consists of monolayer assemblies comprising a photochromic compound of which is based on cis-trans isomerization such as an amphipathic derivative of azobenzene, indigo or thioindigo having a long chain substituent, which monolayers are formed on the substrate by the Langmuir-Blodgett method and oriented in a two-dimensional plain. When the recording medium is irradiated by light, light absorption spectrum of the recording layer changes so that information is recorded. Since the photochromic compound is oriented in a monolayer, its photochromism lasts long.

REFERENCES:
patent: 3715212 (1973-02-01), Ross
patent: 4458004 (1984-07-01), Tanikawa
patent: 4539061 (1985-09-01), Sagiv

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