Optical disc cartridge which protects a disc therein from...

Details Optical disc cartridge which protects a disc therein from... Optical disc cartridge which protects a disc therein from...

2005-05-24

2005-05-24

Letscher, George J. (Department: 2453)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk cartridge

C369S291100

Reexamination Certificate

active

06898797

ABSTRACT:
An optical disc cartridge for storing an optical disc. The cover of the optical disc cartridge absorbs or filters ambient light which may damage information stored on the disc after prolonged exposure to the ambient light. Preferably, the disc cartridge cover allows some visible light to pass in order to allow a user to read label information on the disc. The color of the cover may be transparent to visible light, allow only specific visible wavelengths of light to pass, or be opaque, as long as the amount of ambient light reaching the disc stored within the disc cartridge is reduced. The disc cover may be made of a single layer or include a base layer with one or more thin films thereon.

REFERENCES:
patent: 4455642 (1984-06-01), Inaba
patent: 4560252 (1985-12-01), Mori
patent: 5195082 (1993-03-01), Revay et al.
patent: 5315099 (1994-05-01), Gunz et al.
patent: 5319630 (1994-06-01), Earman et al.
patent: 1-93674 (1989-06-01), None
Kirk-Other Encyclopedia of Chemical Technology, Third Edition, vol. 10, 1980, pp. 247-283, Stuart M. Lee, “Film Deposition Techniques”.
Microelectronic Processing, An Introduction to the Manufacture of Integrated Circuits, 1987, pp. 128-132, W. Scot Ruska.
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, vol. 23, 1983, pp. 615-627, Martin Dexter, “UV Stabilizers”.
Kirk-Othmer Encyclopedia of Chemical Technology, Third Edition, vol. 16, 1981, pp. 522-554, Edward K. Letzer, “Optical Filters”.

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