CN101042900A - 光拾取器和光盘装置 - Google Patents
光拾取器和光盘装置 Download PDFInfo
- Publication number
- CN101042900A CN101042900A CNA2006101265202A CN200610126520A CN101042900A CN 101042900 A CN101042900 A CN 101042900A CN A2006101265202 A CNA2006101265202 A CN A2006101265202A CN 200610126520 A CN200610126520 A CN 200610126520A CN 101042900 A CN101042900 A CN 101042900A
- Authority
- CN
- China
- Prior art keywords
- polarization direction
- light beam
- light
- conversion element
- zone
- 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.)
- Granted
Links
Images
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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
- G11B7/1367—Stepped phase plates
-
- 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
-
- 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
- G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
- G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
-
- 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
Abstract
Description
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-081885 | 2006-03-24 | ||
JP2006081885 | 2006-03-24 | ||
JP2006081885A JP2007257750A (ja) | 2006-03-24 | 2006-03-24 | 光ピックアップおよび光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101042900A true CN101042900A (zh) | 2007-09-26 |
CN101042900B CN101042900B (zh) | 2010-11-24 |
Family
ID=38533238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006101265202A Expired - Fee Related CN101042900B (zh) | 2006-03-24 | 2006-08-25 | 光拾取器和光盘装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7656771B2 (zh) |
JP (1) | JP2007257750A (zh) |
CN (1) | CN101042900B (zh) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7961393B2 (en) | 2004-12-06 | 2011-06-14 | Moxtek, Inc. | Selectively absorptive wire-grid polarizer |
US7800823B2 (en) | 2004-12-06 | 2010-09-21 | Moxtek, Inc. | Polarization device to polarize and further control light |
US7570424B2 (en) | 2004-12-06 | 2009-08-04 | Moxtek, Inc. | Multilayer wire-grid polarizer |
US20080055719A1 (en) * | 2006-08-31 | 2008-03-06 | Perkins Raymond T | Inorganic, Dielectric Grid Polarizer |
US7622696B2 (en) | 2005-03-02 | 2009-11-24 | Nec Corporation | Optical head device, optical information recording/reproducing apparatus and operation method of optical information recording/reproducing apparatus |
US20090219795A1 (en) * | 2005-10-17 | 2009-09-03 | Yutaka Yamanaka | Optical Head and Optical Disk Drive |
JP4726254B2 (ja) * | 2006-03-30 | 2011-07-20 | パイオニア株式会社 | 光ピックアップ及び情報機器 |
US8755113B2 (en) | 2006-08-31 | 2014-06-17 | Moxtek, Inc. | Durable, inorganic, absorptive, ultra-violet, grid polarizer |
JP5120667B2 (ja) * | 2007-04-20 | 2013-01-16 | 日本電気株式会社 | 光ヘッド装置および光学式情報記録再生装置 |
JPWO2008132912A1 (ja) * | 2007-04-23 | 2010-07-22 | 日本電気株式会社 | 光ヘッド装置および光学式情報記録再生装置 |
JP2008276860A (ja) * | 2007-04-27 | 2008-11-13 | Hitachi Media Electoronics Co Ltd | 光ピックアップ装置及び光ディスクドライブ |
WO2008139715A1 (ja) * | 2007-05-08 | 2008-11-20 | Panasonic Corporation | 光学ヘッド、光ディスク装置、コンピュータ、光ディスクプレーヤ及び光ディスクレコーダ |
CN101681642B (zh) * | 2007-05-30 | 2011-07-27 | 三菱电机株式会社 | 光学头装置以及光盘装置 |
JP2009158075A (ja) * | 2007-12-04 | 2009-07-16 | Asahi Glass Co Ltd | 光ヘッド装置 |
US8248696B2 (en) | 2009-06-25 | 2012-08-21 | Moxtek, Inc. | Nano fractal diffuser |
JP2012048785A (ja) * | 2010-08-26 | 2012-03-08 | Sanyo Electric Co Ltd | 光ピックアップ装置 |
US8611007B2 (en) | 2010-09-21 | 2013-12-17 | Moxtek, Inc. | Fine pitch wire grid polarizer |
US8913321B2 (en) | 2010-09-21 | 2014-12-16 | Moxtek, Inc. | Fine pitch grid polarizer |
US8913320B2 (en) | 2011-05-17 | 2014-12-16 | Moxtek, Inc. | Wire grid polarizer with bordered sections |
US8873144B2 (en) | 2011-05-17 | 2014-10-28 | Moxtek, Inc. | Wire grid polarizer with multiple functionality sections |
US8922890B2 (en) | 2012-03-21 | 2014-12-30 | Moxtek, Inc. | Polarizer edge rib modification |
US9348076B2 (en) | 2013-10-24 | 2016-05-24 | Moxtek, Inc. | Polarizer with variable inter-wire distance |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1071917C (zh) * | 1994-12-28 | 2001-09-26 | 索尼公司 | 光拾波装置 |
JP3452113B2 (ja) * | 1996-08-30 | 2003-09-29 | ソニー株式会社 | 光情報記録装置および方法、光情報再生装置および方法ならびに光情報記録媒体 |
US6195315B1 (en) * | 1997-07-11 | 2001-02-27 | Ricoh Company, Ltd. | Optical disk apparatus compatible with different types of mediums |
DE602004030301D1 (de) * | 2003-06-13 | 2011-01-13 | Panasonic Corp | Optischer Kopf und damit versehene Datenverarbeitungseinrichtung |
KR100965884B1 (ko) | 2004-01-14 | 2010-06-24 | 삼성전자주식회사 | 광픽업 |
JP4419654B2 (ja) * | 2004-04-02 | 2010-02-24 | コニカミノルタオプト株式会社 | 光ピックアップ装置 |
JP2005353258A (ja) * | 2004-05-10 | 2005-12-22 | Sony Corp | 光ピックアップ装置及び再生装置 |
CN100350474C (zh) * | 2004-05-10 | 2007-11-21 | 索尼株式会社 | 光拾取器 |
US20090219795A1 (en) * | 2005-10-17 | 2009-09-03 | Yutaka Yamanaka | Optical Head and Optical Disk Drive |
JPWO2007105767A1 (ja) * | 2006-03-16 | 2009-07-30 | 旭硝子株式会社 | 光ヘッド装置 |
-
2006
- 2006-03-24 JP JP2006081885A patent/JP2007257750A/ja active Pending
- 2006-08-22 US US11/508,628 patent/US7656771B2/en not_active Expired - Fee Related
- 2006-08-25 CN CN2006101265202A patent/CN101042900B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101042900B (zh) | 2010-11-24 |
US20070223349A1 (en) | 2007-09-27 |
JP2007257750A (ja) | 2007-10-04 |
US7656771B2 (en) | 2010-02-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: HITACHI AUDIO-VISUAL MEDIA CO., LTD. Free format text: FORMER NAME: HITACHI VIDEO MEDIA ELECTRONIC CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Iwate County Patentee after: Hitachi Audio-visual Media Co., Ltd. Address before: Iwate County Patentee before: Hitachi Video Media Electronic Co., Ltd. |
|
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: Kanagawa Patentee after: Hitachi Audio-visual Media Co., Ltd. Address before: Iwate County Patentee before: Hitachi Audio-visual Media Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20190825 |
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CF01 | Termination of patent right due to non-payment of annual fee |