Global patent index - EP 1046083 A1

EP 1046083 A1 2000-10-25 - 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 (EN)

Application

EP 99951281 A

Priority

  • RO 9900013 W
  • US 15113698 A

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 (main, further and additional classification)

G03H 1/20; C03C 4/00; G11B 7/00

IPC 8 full level (invention and additional information)

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 (2013.01)

CPC (invention and additional information)

G03H 1/20 (2013.01); 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); 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

EPO simple patent family

WO 0016169 A1 20000323; AU 6375099 A 20000403; CA 2310059 A1 20000323; EP 1046083 A1 20001025; IL 136091 D0 20010520

INPADOC legal status

2002-05-15 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20011118

2001-05-30 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010419

2000-10-25 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000613

2000-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE