INCORPORATION OF MARKINGS IN OPTICAL MEDIA

Title:

INCORPORATION OF MARKINGS IN OPTICAL MEDIA

Document Type and Number:

WIPO Patent Application WO2004042704

Kind Code:

A3

Abstract:

Optical media (10) having markings that are non-interfering, or substantially non-interfering with readout of data from the optical media are disclosed. The optical media having at least one layer (101) comprising a formulation comprised of at least one set of photosensitive color forming material, and protective coating (102) to enhance color forming coating. The makings are formed by coating the photosensitive color to an optical medial, and then cured by a first light. A second light, having a substantially separate band of wavelengths from the first light, is used to image the markings into the coating. The coating is robust to many external influences, such as ambinent environmental conditions, and physical wear.

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Inventors:

CONROY JEFFREY L
AFZAL ROBERT S
BERUBE ALLISON
LAWANDY NABIL M
LEWIS DANA
PIZZUTI THOMAS
SMUK ANDREI

Application Number:

PCT/US2003/035390

Publication Date:

August 12, 2004

Filing Date:

November 05, 2003

Export Citation:

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Assignee:

SPECTRA SYSTEMS CORP (US)

International Classes:

B32B3/02; G03C1/492; G03C1/725; G03C7/24; G04C5/00; G11B23/40; G11B7/24038; G11B; (IPC1-7): G03C1/492; B32B3/02; G03C1/725; G03C7/24; G04C5/00

Domestic Patent References:

WO1999065696A1	1999-12-23
WO2001041056A1	2001-06-07

Foreign References:

US5510163A	1996-04-23
US5631118A	1997-05-20
US5885746A	1999-03-23
US4343885A	1982-08-10
US5549953A	1996-08-27
US5607188A	1997-03-04

Other References: