Optical recording medium

Details Optical recording medium Optical recording medium

2006-11-07

2006-11-07

Mulvaney, Elizabeth (Department: 1774)

Stock material or miscellaneous articles

Circular sheet or circular blank

C428S064400, C428S054000, C430S270130

Reexamination Certificate

active

07132146

ABSTRACT:
The invention provides an optical recording disk, with which the worsening of jitter can be prevented effectively even when fingerprints become adhered onto a laser light incidence surface. An optical recording disk10comprises a substrate2, a recording layer5, formed on the substrate, a light transmitting layer7, formed on the recording layer, and a hard coat layer8, formed on the light transmitting layer, and is characterized in that, when an operation of adhering an artificial fingerprint solution onto the optical recording disk's light incidence surface, onto which laser light is made incident, is performed and then an operation of wiping off the artificial fingerprint solution that has been adhered onto the light incidence surface is repeated five times, jitter becomes no more than 1.15 times that prior to the adhesion of the artificial fingerprint solution.

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