Optical recording method

Details Optical recording method Optical recording method

1995-07-24

1996-01-23

Bowers, Jr., Charles L.

Dynamic information storage or retrieval

Storage medium structure

Specified material

430945, 430 21, 43027016, 4302731, 4302751, G11B 700

Patent

active

054864372

ABSTRACT:
An optical recording medium wherein a recording layer capable of optically recording and reproducing the information is formed on a substrate, and wherein the information is recorded with a light beam having a wavelength shorter than that of a replay light beam. A film thickness d of the recording layer is set so as to satisfy the relation d.ltoreq.1.75.lambda.
, where .lambda. is the wavelength of the replay light beam and n is the real part of the complex index of refraction of the recording layer with respect to the replay light beam. The real part of the complex index of refraction of the recording layer with respect to the replay light beam is not less than 2.55, while the absolute value of the imaginary part of the complex index of refraction of the recording layer with respect to the recording light beam is not less than 1.0. The organic dye may be enumerated by a cyanine compound and a porphyrin compound. If the porphyrin compound is used, blue-hued laser recording becomes possible. The optical recording medium is capable of non-destructive reading and superior in reliability and high-speed recording/reproducing characteristics.

REFERENCES:
patent: 4360908 (1982-11-01), Howe et al.
patent: 4380769 (1983-04-01), Thomas et al.
patent: 4415621 (1983-11-01), Specht et al.
patent: 4696892 (1987-09-01), Abe et al.
patent: 4900649 (1990-02-01), Mochizuki et al.
patent: 5080946 (1992-01-01), Takagisi et al.

Affiliated with

Also associated with

Rating

Optical recording method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical recording method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical recording method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1504415