JP4043428B2 - ホログラフィックromシステムの環形プリズム - Google Patents
ホログラフィックromシステムの環形プリズム Download PDFInfo
- Publication number
- JP4043428B2 JP4043428B2 JP2003351491A JP2003351491A JP4043428B2 JP 4043428 B2 JP4043428 B2 JP 4043428B2 JP 2003351491 A JP2003351491 A JP 2003351491A JP 2003351491 A JP2003351491 A JP 2003351491A JP 4043428 B2 JP4043428 B2 JP 4043428B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- reference light
- storage medium
- refracted
- holographic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
上述の技術を用いることにより、100GB程度の最大記録容量を有するディスクを生産するためにかかる時間は、1分未満に減少され、数秒に減少される可能性もある。
102、112、202、212:半波長板(HWP)
104、204:ビーム拡大器
106、206:偏光ビームスプリッタ(PBS)
108、114、208、214:偏光器
110、116、116'、210、216、216':ミラー
118:円錐ミラー
120、220:ホログラム記憶媒体
122、222:マスク
124:中央開口部
218:環形プリズム
218a:入射面
218b:投影面
Claims (4)
- ホログラム記憶媒体に干渉パターンのデータを記憶するためのホログラフィックシステムであって、
レーザー光を放出する光源と、
前記レーザー光を参照光及び信号光に分離するビームスプリッタと、
前記信号光を変調して変調された信号光を生成する手段と、
前記参照光を屈折させて屈折された参照光を生成する屈折性物質とを有し、
前記屈折された参照光が前記変調された信号光と前記ホログラム記憶媒体で干渉して前記干渉パターンを生成し、
前記屈折性物質は、前記屈折された参照光を前記ホログラム記憶媒体に円錐形に分散させる環形プリズムであり、前記環形プリズムは内部通路を有する円錐台であり、前記内部通路は前記参照光が入射する第1屈折面及び前記参照光が出力される第2屈折面から構成されることを特徴とするホログラフィックシステム。 - 前記屈折された参照光の光路は、前記屈折性物質の屈折率により異なることを特徴とする請求項1に記載のホログラフィックシステム。
- 前記屈折性物質は、PbO−SiO2で作られることを特徴とする請求項2に記載のホログラフィックシステム。
- 前記屈折性物質の前記屈折率は、PbO−SiO2中のPbO含量により異なることを特徴とする請求項3に記載のホログラフィックシステム。
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 |
---|---|
JP2004302416A JP2004302416A (ja) | 2004-10-28 |
JP4043428B2 true JP4043428B2 (ja) | 2008-02-06 |
Family
ID=32844889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003351491A Expired - Fee Related 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 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6972982B2 (ja) |
EP (1) | EP1465163B1 (ja) |
JP (1) | JP4043428B2 (ja) |
KR (1) | KR100488963B1 (ja) |
CN (1) | CN1244912C (ja) |
AT (1) | ATE364229T1 (ja) |
DE (1) | DE60314224T2 (ja) |
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 EP EP03022934A patent/EP1465163B1/en not_active Expired - Lifetime
- 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
- 2003-10-10 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 |
---|---|
CN1244912C (zh) | 2006-03-08 |
EP1465163A2 (en) | 2004-10-06 |
KR20040085327A (ko) | 2004-10-08 |
DE60314224D1 (de) | 2007-07-19 |
US20040190358A1 (en) | 2004-09-30 |
EP1465163A3 (en) | 2005-05-04 |
EP1465163B1 (en) | 2007-06-06 |
KR100488963B1 (ko) | 2005-05-10 |
DE60314224T2 (de) | 2008-02-07 |
JP2004302416A (ja) | 2004-10-28 |
ATE364229T1 (de) | 2007-06-15 |
CN1534629A (zh) | 2004-10-06 |
US6972982B2 (en) | 2005-12-06 |
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