KR100488963B1 - 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산프리즘 - Google Patents
홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산프리즘 Download PDFInfo
- Publication number
- KR100488963B1 KR100488963B1 KR10-2003-0019975A KR20030019975A KR100488963B1 KR 100488963 B1 KR100488963 B1 KR 100488963B1 KR 20030019975 A KR20030019975 A KR 20030019975A KR 100488963 B1 KR100488963 B1 KR 100488963B1
- Authority
- KR
- South Korea
- Prior art keywords
- holographic rom
- prism
- reference beam
- sio
- recording
- Prior art date
Links
- 239000006185 dispersion Substances 0.000 claims description 24
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 6
- 238000004017 vitrification Methods 0.000 claims description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 2
- 239000005304 optical glass Substances 0.000 claims description 2
- 239000005368 silicate glass Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000011521 glass Substances 0.000 description 9
- 239000000306 component Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000012533 medium component Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012092 media component Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1359—Single prisms
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Holo Graphy (AREA)
- Optical Elements Other Than Lenses (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (4)
- 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 프리즘에 있어서,상기 홀로그래픽 롬 디스크(disc) 하단에 환형 분산 프리즘(dispersing prism)을 설계하고, 상기 설계된 환형 분산 프리즘의 매질 성분에 따라 기준빔의 굴절률을 조절하는 상태에서, 상기 디스크 위쪽으로부터 신호빔(laser beam)을 내려받고, 상기 디스크 아래쪽으로부터 굴절되는 기준빔을 제공받아 상기 디스크 상에 서로 중첩시켜 데이터를 기록하는 것을 특징으로 하는 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산 프리즘.
- 제 1 항에 있어서, 상기 기준빔은,상기 환형 분산 프리즘 내부를 통과하여 공기와 만나는 면에서 다시 한번 굴절되어 상기 홀로그래픽 롬 디스크에 입사되는 것을 특징으로 하는 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산 프리즘.
- 제 1 항에 있어서,상기 환형 분산 프리즘의 매질의 성분은 광학용 유리인 산화 실리콘(SiO2)에 망목 수식제 산화물인 산화 나트륨(Na2O)을 첨가시켜 그 매질의 성분을 다르게 하는 것을 특징으로 하는 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산 프리즘.
- 제 3 항에 있어서,상기 산화 실리콘(SiO2)과 산화 나트륨(Na2O)의 비가 1 : 1 일 때, 3차원 망목구조가 붕괴되어 유리화가 중단됨에 따라 2 성분계 납 규산염 유리를 용융하게 하여 Na2O-SiO2계의 유리화 영역을 약 50mole% Na2O 함량까지로 하고, PbO-SiO 2계를 약 75mole% PbO 함량까지 유리화가 가능하도록 하는 것을 특징으로 하는 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산 프리즘.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0019975A KR100488963B1 (ko) | 2003-03-31 | 2003-03-31 | 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산프리즘 |
US10/678,196 US6972982B2 (en) | 2003-03-31 | 2003-10-02 | Ring-shaped prism of a holographic ROM system |
EP03022934A EP1465163B1 (en) | 2003-03-31 | 2003-10-09 | Ring-shaped prism of a holographic ROM system |
DE60314224T DE60314224T2 (de) | 2003-03-31 | 2003-10-09 | Ringförmiges Prisma eines holographischen ROM Systems |
AT03022934T ATE364229T1 (de) | 2003-03-31 | 2003-10-09 | Ringförmiges prisma eines holographischen rom systems |
JP2003351491A JP4043428B2 (ja) | 2003-03-31 | 2003-10-10 | ホログラフィックromシステムの環形プリズム |
CNB2003101014643A CN1244912C (zh) | 2003-03-31 | 2003-10-20 | 全息只读存储器系统的环形棱镜 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0019975A KR100488963B1 (ko) | 2003-03-31 | 2003-03-31 | 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산프리즘 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040085327A KR20040085327A (ko) | 2004-10-08 |
KR100488963B1 true KR100488963B1 (ko) | 2005-05-10 |
Family
ID=32844889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2003-0019975A KR100488963B1 (ko) | 2003-03-31 | 2003-03-31 | 홀로그래픽 롬 시스템의 다중 중첩 기록을 위한 환형 분산프리즘 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6972982B2 (ko) |
EP (1) | EP1465163B1 (ko) |
JP (1) | JP4043428B2 (ko) |
KR (1) | KR100488963B1 (ko) |
CN (1) | CN1244912C (ko) |
AT (1) | ATE364229T1 (ko) |
DE (1) | DE60314224T2 (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100555789B1 (ko) * | 2003-04-30 | 2006-03-03 | 주식회사 대우일렉트로닉스 | 홀로그래픽 롬 시스템 |
JP4335613B2 (ja) * | 2003-08-28 | 2009-09-30 | Tdk株式会社 | ホログラフィック記録方法及び装置 |
KR100571840B1 (ko) * | 2004-04-21 | 2006-04-17 | 삼성전자주식회사 | 홀로그래픽 정보의 기록/재생 장치 |
US7333251B2 (en) * | 2004-06-08 | 2008-02-19 | Daewoo Electronics Corporation | Holographic data recording apparatus and method |
KR100588940B1 (ko) * | 2004-06-08 | 2006-06-09 | 주식회사 대우일렉트로닉스 | 홀로그래픽 데이터 기록 장치 및 방법 |
JP2006018864A (ja) * | 2004-06-30 | 2006-01-19 | Sony Corp | ホログラム複製方法 |
JP2006155831A (ja) * | 2004-11-30 | 2006-06-15 | Fujitsu Ltd | ホログラム記録媒体及びホログラム記録再生装置 |
KR100626965B1 (ko) * | 2004-12-15 | 2006-09-21 | 주식회사 대우일렉트로닉스 | 코니컬 미러 제조 방법 |
EP1912212A1 (en) | 2006-10-13 | 2008-04-16 | Thomson Holding Germany GmbH & Co. OHG | Apparatus for collinear reading from and/or writing to holographic storage media |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3742464A (en) * | 1969-10-15 | 1973-06-26 | Rca Corp | Electrically and optically accessible memory |
US3914129A (en) * | 1972-09-05 | 1975-10-21 | Eastman Kodak Co | High index optical glass |
GB8629223D0 (en) | 1986-12-06 | 1987-01-14 | Emi Plc Thorn | Replication of carriers |
US5322747A (en) * | 1989-03-22 | 1994-06-21 | Hugle William B | Method of manufacturing an optical disc |
US5896359A (en) * | 1997-03-18 | 1999-04-20 | Northrop Grumman Corporation | Spinning disc volume holographic memory |
JP4099819B2 (ja) * | 2002-02-07 | 2008-06-11 | ソニー株式会社 | ホログラフィック・ディスク・レコーディング・システム |
KR100555789B1 (ko) * | 2003-04-30 | 2006-03-03 | 주식회사 대우일렉트로닉스 | 홀로그래픽 롬 시스템 |
-
2003
- 2003-03-31 KR KR10-2003-0019975A patent/KR100488963B1/ko not_active IP Right Cessation
- 2003-10-02 US US10/678,196 patent/US6972982B2/en not_active Expired - Fee Related
- 2003-10-09 AT AT03022934T patent/ATE364229T1/de not_active IP Right Cessation
- 2003-10-09 DE DE60314224T patent/DE60314224T2/de not_active Expired - Lifetime
- 2003-10-09 EP EP03022934A patent/EP1465163B1/en not_active Expired - Lifetime
- 2003-10-10 JP JP2003351491A patent/JP4043428B2/ja not_active Expired - Fee Related
- 2003-10-20 CN CNB2003101014643A patent/CN1244912C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1465163A2 (en) | 2004-10-06 |
DE60314224T2 (de) | 2008-02-07 |
DE60314224D1 (de) | 2007-07-19 |
KR20040085327A (ko) | 2004-10-08 |
JP4043428B2 (ja) | 2008-02-06 |
CN1534629A (zh) | 2004-10-06 |
ATE364229T1 (de) | 2007-06-15 |
US6972982B2 (en) | 2005-12-06 |
EP1465163A3 (en) | 2005-05-04 |
EP1465163B1 (en) | 2007-06-06 |
CN1244912C (zh) | 2006-03-08 |
JP2004302416A (ja) | 2004-10-28 |
US20040190358A1 (en) | 2004-09-30 |
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