ATE397776T1 - Diffraktives element - Google Patents
Diffraktives elementInfo
- Publication number
- ATE397776T1 ATE397776T1 AT05773307T AT05773307T ATE397776T1 AT E397776 T1 ATE397776 T1 AT E397776T1 AT 05773307 T AT05773307 T AT 05773307T AT 05773307 T AT05773307 T AT 05773307T AT E397776 T1 ATE397776 T1 AT E397776T1
- Authority
- AT
- Austria
- Prior art keywords
- wavelength
- information layer
- radiation
- polarisation
- diffractive
- Prior art date
Links
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
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
- G11B7/0903—Multi-beam tracking systems
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Semiconductor Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04300480 | 2004-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE397776T1 true ATE397776T1 (de) | 2008-06-15 |
Family
ID=35787502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05773307T ATE397776T1 (de) | 2004-07-27 | 2005-07-21 | Diffraktives element |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7602691B2 (de) |
| EP (1) | EP1774520B1 (de) |
| JP (1) | JP2008508653A (de) |
| KR (1) | KR20070044037A (de) |
| CN (1) | CN100511436C (de) |
| AT (1) | ATE397776T1 (de) |
| DE (1) | DE602005007356D1 (de) |
| TW (1) | TW200620255A (de) |
| WO (1) | WO2006013526A2 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4737536B2 (ja) * | 2006-02-16 | 2011-08-03 | ソニー株式会社 | 光ピックアップ装置及び光ディスク装置 |
| JP2009223936A (ja) * | 2008-03-14 | 2009-10-01 | Ricoh Co Ltd | 光ピックアップおよびこれを用いる光情報処理装置 |
| JPWO2010016559A1 (ja) * | 2008-08-07 | 2012-01-26 | 旭硝子株式会社 | 回折格子、収差補正素子および光ヘッド装置 |
| TWI432780B (zh) * | 2011-01-19 | 2014-04-01 | 台達電子工業股份有限公司 | 光源系統 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3474346B2 (ja) | 1996-01-31 | 2003-12-08 | パイオニア株式会社 | 多焦点レンズ、多焦点光ピックアップ及び光学式情報再生装置 |
| US5966364A (en) | 1996-08-26 | 1999-10-12 | Laser Dynamcics, Inc. | Optical pick-up apparatus for multiple data surface optical disk system |
| JP3359309B2 (ja) | 1998-10-29 | 2002-12-24 | キヤノン株式会社 | バイナリ型の回折光学素子の作製方法 |
| TW442786B (en) | 1999-08-25 | 2001-06-23 | Ind Tech Res Inst | Single objective lens optical pick-up head |
| JP3886313B2 (ja) | 2000-01-26 | 2007-02-28 | パイオニア株式会社 | 光ピックアップ |
| EP1226580B1 (de) * | 2000-09-25 | 2005-02-16 | Koninklijke Philips Electronics N.V. | Optisches abtastgerät |
| TW535009B (en) * | 2001-06-13 | 2003-06-01 | Pentax Corp | Diffraction optical element |
| JP2003006891A (ja) * | 2001-06-21 | 2003-01-10 | Sankyo Seiki Mfg Co Ltd | 光ピックアップ装置 |
| KR20040068975A (ko) | 2001-12-24 | 2004-08-02 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 이중 3-스폿 광학주사장치 |
| CN1430219A (zh) | 2002-01-04 | 2003-07-16 | 财团法人工业技术研究院 | 多波长的光学读写头 |
| WO2003060891A2 (en) | 2002-01-17 | 2003-07-24 | Koninklijke Philips Electronics N.V. | Optical scanning device |
| KR100472443B1 (ko) | 2002-03-19 | 2005-02-21 | 삼성전자주식회사 | 광픽업 장치 |
| US7245407B2 (en) * | 2002-06-10 | 2007-07-17 | Matsushita Electric Industrial Co., Ltd. | Complex objective lens compatible with information media of different thicknesses |
| JP2004327003A (ja) * | 2002-07-26 | 2004-11-18 | Sharp Corp | 光ピックアップ |
| KR100499007B1 (ko) * | 2002-12-30 | 2005-07-01 | 삼성전기주식회사 | 홀로그램 광학소자를 이용한 광 픽업장치 및 홀로그램패턴형성방법 |
-
2005
- 2005-07-21 CN CNB2005800255584A patent/CN100511436C/zh not_active Expired - Fee Related
- 2005-07-21 AT AT05773307T patent/ATE397776T1/de not_active IP Right Cessation
- 2005-07-21 US US11/572,603 patent/US7602691B2/en not_active Expired - Fee Related
- 2005-07-21 WO PCT/IB2005/052460 patent/WO2006013526A2/en active IP Right Grant
- 2005-07-21 JP JP2007523217A patent/JP2008508653A/ja active Pending
- 2005-07-21 KR KR1020077004620A patent/KR20070044037A/ko not_active Application Discontinuation
- 2005-07-21 DE DE602005007356T patent/DE602005007356D1/de active Active
- 2005-07-21 EP EP05773307A patent/EP1774520B1/de not_active Not-in-force
- 2005-07-22 TW TW094124994A patent/TW200620255A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN100511436C (zh) | 2009-07-08 |
| WO2006013526A2 (en) | 2006-02-09 |
| JP2008508653A (ja) | 2008-03-21 |
| CN1993738A (zh) | 2007-07-04 |
| WO2006013526A3 (en) | 2006-06-22 |
| KR20070044037A (ko) | 2007-04-26 |
| TW200620255A (en) | 2006-06-16 |
| DE602005007356D1 (de) | 2008-07-17 |
| US20080095015A1 (en) | 2008-04-24 |
| US7602691B2 (en) | 2009-10-13 |
| EP1774520A2 (de) | 2007-04-18 |
| EP1774520B1 (de) | 2008-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |