Optical disk and method of producing the same

Details Optical disk and method of producing the same Optical disk and method of producing the same

2005-10-18

2005-10-18

Cao, Allen (Department: 2652)

Dynamic optical information storage or retrieval

Optical storage medium structure

Reexamination Certificate

active

06957444

ABSTRACT:
An optical disk includes a reflective layer, a recording layer, an optical-transparent bonding layer and an optical transparent sheet laminated on a substrate in this order. The total thickness of the optical-transparent bonding layer and the optical transparent sheet is 0.1 mm. The peak-to-peak height of wrinkles formed on the sheet is 2.5 μm or lower. The optical disk is produced as follows: A first ultraviolet ray is radiated to an optical transparent sheet at a first energy level in the range from 500 mJ/cm2to 3000 mJ/cm2, a wavelength of the first ultraviolet ray being in the range from 250 nm to 300 nm. Prepared next is a substrate laminated on which are a reflective layer and a recording layer in this order. Ultraviolet hardened resin is applied on the recording layer to form an optical-transparent bonding layer thereon. An optical transparent sheet is provided on the optical-transparent bonding layer. A second ultraviolet ray is radiated to the optical transparent sheet at a second energy level the same as or lower than the first energy level, to harden the optical-transparent bonding layer, thus the optical transparent sheet being bonded on the substrate via the optical-transparent bonding layer.

REFERENCES:
patent: 5972459 (1999-10-01), Kawakubo et al.
patent: 6177176 (2001-01-01), Tanabe et al.
patent: 6246656 (2001-06-01), Kawakubo et al.
patent: 2003/0148060 (2003-08-01), Nishizawa et al.
patent: 2000-311392 (2000-11-01), None
patent: 2000-340815 (2000-12-01), None
patent: 2001-243658 (2001-09-01), None
patent: 2001-243659 (2001-09-01), None

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