Optical recording medium comprising organic dye thin film

Details Optical recording medium comprising organic dye thin film Optical recording medium comprising organic dye thin film

1998-08-25

2000-08-15

Evans, Elizabeth

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428 644, 428 648, 428457, 428913, 43027016, 4302702, 4304951, 430945, 369283, 369288, B32B 300

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active

061033316

ABSTRACT:
This invention provides an optical recording medium complying with the DVD standards, having high sensitivity, possessing high dye film stability, having a high C/N ratio during high density recording, and being capable of reducing jitter components contained in reproduced signals, by finding an organic dye thin film and a medium configuration which can be adapted for a short wavelength semiconductor laser (wavelength 500 to 700 nm) and which are satisfactory in optical characteristics, and chemical, photochemical, physical and thermal stability, the optical recording medium comprising at least a recording layer and a metallic reflecting layer laminated on the surface of a grooved resin substrate transparent to laser light; wherein the recording layer comprises an organic thin film consisting essentially of a styrylcyanine dye of a specific structure and adapted for a short wavelength laser.

REFERENCES:
patent: 2112139 (1938-03-01), Brooker et al.
patent: 2734900 (1956-02-01), Heseltine
patent: 2887479 (1959-05-01), Heseltine
patent: 3925077 (1975-12-01), Lewis
patent: 4891305 (1990-01-01), Oba et al.
"Write Once Read Multiple (WORM) Optical Disk that Meets the CD Standards Ensures Recording Due to Thermal Deformation of the Critical Surface Between a Substrate and a Pigment Layer" Nikkei Electronics, vol. No. 445 (Jan. 23, 1989).

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