Optical high density recording mediums, method for making same a

Details Optical high density recording mediums, method for making same a Optical high density recording mediums, method for making same a

1986-03-05

1988-04-12

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430 31, 430 46, 430 56, 430 70, 430 75, 430 96, 430126, 430332, 430338, 430945, 3461351, 346137, G03C 1100, F23N 500, G01D 900

Patent

active

047374276

ABSTRACT:
A optical recording medium which comprises a substrate and a recording layer of at least two J-aggregates of dyes formed on the substrate is described. The dyes may be photochromic dyes or other types of dyes capable of forming the aggregates which have narrower absorption spectral ranges than original dyes. A plurality of information bits can be written in the recording layer by irradiation of one laser beam spot. The recording layer is formed by an LB film method or a method capable of fluidizing a dye solution in a direction horizontal to the substrate surface. A recording method using the medium is also described.

REFERENCES:
patent: 3980480 (1976-09-01), Laridon et al.
patent: 3989530 (1976-11-01), Robillard
patent: 4030926 (1977-06-01), Stahlke et al.
patent: 4270130 (1981-05-01), Houle et al.
patent: 4513071 (1985-04-01), Mey

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