EP 1558969 A4 20090325 - INCORPORATION OF MARKINGS IN OPTICAL MEDIA
Title (en)
INCORPORATION OF MARKINGS IN OPTICAL MEDIA
Title (de)
INTEGRATION VON MARKIERUNGEN IN OPTISCHEMEDIEN
Title (fr)
INCORPORATION DE REPERES DANS DES SUPPORTS OPTIQUES
Publication
Application
Priority
- US 0335390 W 20031105
- US 42388802 P 20021105
- US 43564702 P 20021220
- US 48994503 P 20030722
Abstract (en)
[origin: WO2004042704A2] Optical media having markings that are non-interfering, or substantially non-interfering with readout of data from the optical media are disclosed. The optical media make use of certain formulations of color forming coatings described herein. Protective coatings used to enhance the color forming coatings are also presented. Methods for incorporating the coatings into the optical media are included. In preferred embodiments, the marking is formed in a photosensitive coating that is applied to the optical media, and then cured with a first light. A second light, having a substantially separate band of wavelengths from the first light, is used to image a marking into the coating. The coating is robust to many external influences, such as ambient environmental conditions, and physical wear.
IPC 8 full level
B32B 3/02 (2006.01); G03C 1/492 (2006.01); G03C 1/725 (2006.01); G03C 1/73 (2006.01); G03C 7/24 (2006.01); G04C 5/00 (2006.01); G11B 23/40 (2006.01); G11B 7/24 (2006.01); G11B 7/24038 (2013.01)
IPC 8 main group level
G11B (2006.01)
CPC (source: EP)
G11B 7/252 (2013.01); G11B 23/40 (2013.01); G11B 7/24038 (2013.01)
Citation (search report)
- [PXL] US 2003012562 A1 20030116 - LAWANDY NABIL M [US], et al
- See references of WO 2004042704A2
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2004042704 A2 20040521; WO 2004042704 A3 20040812; AU 2003287540 A1 20040607; AU 2003287540 A8 20040607; EP 1558969 A2 20050803; EP 1558969 A4 20090325
DOCDB simple family (application)
US 0335390 W 20031105; AU 2003287540 A 20031105; EP 03781782 A 20031105