Initialization method of optical recording medium

Details Initialization method of optical recording medium Initialization method of optical recording medium

2005-08-09

2005-08-09

Castro, Angel (Department: 2653)

Dynamic optical information storage or retrieval

Optical storage medium structure

C369S275200, C369S288000

Reexamination Certificate

active

06928651

ABSTRACT:
An initialization method of an optical recording medium having a plurality of optical recording layers capable of reducing uneven initialization due to light interference caused at the time of initialization without deterioration of information recording/reproducing signal characteristics of the recording layers is provided. An initialization method of an optical recording medium, wherein a second optical recording layer and a first optical recording layer are successively stacked via an interlayer on a substrate, a protective layer is formed further on the first optical recording layer, a recording film in the first optical recording layer comprises a phase change type recording material, and a recording/reproducing light is irradiated from the protective film side at the time of recording/reproducing, a material composing the interlayer has a sufficient transmittance for a wavelength of the recording/reproducing light and absorption for an initializing light, and, in a step of initializing by irradiating an initializing light on the first optical recording layer from the protective film side, laser light having a wavelength range of 200 nm to 400 nm is used as the initializing light.

REFERENCES:
patent: 6240060 (2001-05-01), Kikitsu et al.
patent: 6256286 (2001-07-01), Ogawa
patent: 6294310 (2001-09-01), Ohno et al.
patent: 6574180 (2003-06-01), Kurokawa et al.
patent: 6665245 (2003-12-01), Guerra et al.
patent: 2002/0018428 (2002-02-01), Kurokawa et al.
patent: 5-159299 (1993-06-01), None
patent: 2001-250265 (2001-09-01), None
patent: 2002-144736 (2002-05-01), None

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3450715