EP 1046083 A1 20001025 - APPARATUS, HOLOGRAPHIC PROCESS FOR DUPLICATING OPTICAL AND HOLOGRAPHIC MEMORIES, AND MEMORY COPY OBTAINED THEREOF

Title (en)

APPARATUS, HOLOGRAPHIC PROCESS FOR DUPLICATING OPTICAL AND HOLOGRAPHIC MEMORIES, AND MEMORY COPY OBTAINED THEREOF

Title (de)

VORRICHTUNG UND HOLOGRAPHISCHES VERFAHREN ZUM VERVIELFÄLTIGEN EINES OPTISCHEN UND HOLOGRAPHISCHEN SPEICHERS UND DAMIT ERZEUGTE KOPIE EINES SPEICHERS

Title (fr)

DISPOSITIF, PROCEDE HOLOGRAPHIQUE DE DUPLICATION DE MEMOIRES HOLOGRAPHIQUES ET OPTIQUES, ET COPIE DE MEMOIRE AINSI OBTENUE

Publication

EP 1046083 A1 20001025 (EN)

Application

EP 99951281 A 19990909

Priority

RO 9900013 W 19990909
US 15113698 A 19980910

Abstract (en)

[origin: WO0016169A1] This invention relates to a holographic process for duplicating optical media. The duplication process according to the present invention uses fluorescence holography and holographic materials such as fluorescent photosensitive vitroceramics. During the duplication, a memory template (12) is first created containing an interference pattern representing an original memory (9) to be duplicated. Second, the memory template is used to recreate a hologram (13) representing a copy of the original memory. The invention provides a procedure for the large scale reproduction of optical media.

IPC 1-7

G03H 1/20; G11B 7/00; C03C 4/00

IPC 8 full level

C03C 3/095 (2006.01); C03C 3/16 (2006.01); C03C 4/04 (2006.01); C03C 4/12 (2006.01); C03C 10/16 (2006.01); G03H 1/20 (2006.01); G11B 7/28 (2006.01); G11B 7/0065 (2006.01); G11B 7/24 (2006.01)

CPC (source: EP)

C03C 3/095 (2013.01); C03C 3/16 (2013.01); C03C 4/04 (2013.01); C03C 4/12 (2013.01); C03C 10/16 (2013.01); G03H 1/20 (2013.01); G11B 7/28 (2013.01); G11B 7/0065 (2013.01); G11B 7/24 (2013.01)

Citation (search report)

See references of WO 0016169A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0016169 A1 20000323; AU 6375099 A 20000403; CA 2310059 A1 20000323; EP 1046083 A1 20001025; IL 136091 A0 20010520

DOCDB simple family (application)

RO 9900013 W 19990909; AU 6375099 A 19990909; CA 2310059 A 19990909; EP 99951281 A 19990909; IL 13609199 A 19990909