CN1287185C - 用于光学头的物镜、光学头以及光盘驱动器 - Google Patents
用于光学头的物镜、光学头以及光盘驱动器 Download PDFInfo
- Publication number
- CN1287185C CN1287185C CNB011353694A CN01135369A CN1287185C CN 1287185 C CN1287185 C CN 1287185C CN B011353694 A CNB011353694 A CN B011353694A CN 01135369 A CN01135369 A CN 01135369A CN 1287185 C CN1287185 C CN 1287185C
- Authority
- CN
- China
- Prior art keywords
- object lens
- laser beam
- lens
- laser
- astigmatism
- 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 - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
-
- 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
- G11B7/12—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
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- 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
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
-
- 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
- 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
- G11B7/1372—Lenses
- G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Optical Head (AREA)
- Lenses (AREA)
Abstract
Description
NA1=0.65 f1=3.360 λ1=657NA2=0.50 f2=3.384 λ2=790 | |||
第一表面 | 第二表面 | ||
公共区域(0≤h<1.69) | 高NA专用区域(1.69≤h<2.18) | ||
r | 2.101 | 2.129 | ry:-8.450rZ:-8.446 |
κ | -0.500 | -0.500 | 0.00 |
A4 | -1.81100×10-3 | -6.72000×10-4 | 1.60200×1-2 |
A6 | -2.44900×10-4 | -1.46200×10-5 | -3.26800×10-3 |
A8 | -1.75000×10-5 | -8.69200×10-5 | 1.29900×10-4 |
A10 | -3.51400×10-6 | 2.19000×10-5 | 3.20300×10-5 |
A12 | -2.56000×10-6 | -5.36100×10-6 | -3.74500×10-6 |
P2 | 0.0 | -2.56044 | --- |
P4 | -1.65300 | -0.80000 | --- |
P6 | -0.15050 | -0.09000 | --- |
P8 | 0.0 | 0.00 | --- |
P10 | 0.0 | 0.00 | --- |
P12 | 0.0 | 0.00 | --- |
d(第一和第二表面之间的距离) | 2.210 | ||
n657(波长为657nm时的折射率) | 1.54059 | ||
n790(波长为790nm时的折射率) | 1.53653 |
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP306983/2000 | 2000-10-06 | ||
JP2000306983 | 2000-10-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1365013A CN1365013A (zh) | 2002-08-21 |
CN1287185C true CN1287185C (zh) | 2006-11-29 |
Family
ID=18787563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB011353694A Expired - Lifetime CN1287185C (zh) | 2000-10-06 | 2001-09-30 | 用于光学头的物镜、光学头以及光盘驱动器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6785215B2 (zh) |
KR (1) | KR20020027261A (zh) |
CN (1) | CN1287185C (zh) |
TW (1) | TW544529B (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7266704B2 (en) * | 2000-12-18 | 2007-09-04 | Digimarc Corporation | User-friendly rights management systems and methods |
JP4279485B2 (ja) * | 2001-10-09 | 2009-06-17 | コニカミノルタホールディングス株式会社 | 対物レンズおよび光ピックアップ装置 |
JP3518684B2 (ja) | 2002-01-11 | 2004-04-12 | 日立マクセル株式会社 | 対物レンズの設計方法、対物レンズ、対物レンズの製造方法、多波長用光学系、光ヘッド及び光デイスク装置 |
CN100432707C (zh) * | 2002-01-11 | 2008-11-12 | 日立麦克赛尔株式会社 | 物镜 |
JP4259067B2 (ja) * | 2002-02-22 | 2009-04-30 | コニカミノルタホールディングス株式会社 | 光ピックアップ装置の対物光学素子、光ピックアップ装置及び光情報記録再生装置 |
JP2004005944A (ja) * | 2002-04-30 | 2004-01-08 | Samsung Electronics Co Ltd | 光ピックアップ及びくさび型ビームスプリッタ |
JP2003337281A (ja) * | 2002-05-17 | 2003-11-28 | Minolta Co Ltd | 光ピックアップ用の対物レンズ |
JP3546877B2 (ja) | 2002-05-28 | 2004-07-28 | 三菱電機株式会社 | 半導体レーザ装置及び光ヘッド装置 |
US7212485B2 (en) * | 2003-04-14 | 2007-05-01 | Hoya Corporation | Objective lens and method for manufacture thereof |
CN101789243B (zh) * | 2005-02-10 | 2012-08-22 | 柯尼卡美能达精密光学株式会社 | 物镜、光拾取装置及光信息记录再生装置 |
EP1975931A1 (en) * | 2005-12-28 | 2008-10-01 | Matsushita Electric Industrial Co., Ltd. | Objective lens, optical head and optical disc device |
JP2008071385A (ja) * | 2006-09-12 | 2008-03-27 | Nidec Sankyo Corp | 光ヘッド装置 |
JP4989302B2 (ja) * | 2007-05-10 | 2012-08-01 | Hoya株式会社 | 光ピックアップ光学系組付方法 |
US10663700B2 (en) * | 2018-01-30 | 2020-05-26 | Coherent, Inc. | Achromatic astigmatic anamorphic objective |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3191200B2 (ja) | 1994-11-10 | 2001-07-23 | コニカ株式会社 | 光情報記録媒体の記録再生装置 |
JP3653923B2 (ja) * | 1997-03-19 | 2005-06-02 | ソニー株式会社 | 記録再生装置および方法 |
JPH1153759A (ja) | 1997-06-05 | 1999-02-26 | Hitachi Ltd | 光学ヘッドおよびそれを用いた光ディスク装置 |
US6366542B1 (en) * | 1999-11-17 | 2002-04-02 | Konica Corporation | Optical pickup apparatus and objective lens |
JP2001184698A (ja) * | 1999-12-22 | 2001-07-06 | Pioneer Electronic Corp | 光ピックアップ装置 |
JP2002025096A (ja) * | 2000-07-07 | 2002-01-25 | Matsushita Electric Ind Co Ltd | 半導体光源、光ピックアップヘッド装置及び情報記録再生装置 |
-
2001
- 2001-09-30 CN CNB011353694A patent/CN1287185C/zh not_active Expired - Lifetime
- 2001-10-02 US US09/967,998 patent/US6785215B2/en not_active Expired - Lifetime
- 2001-10-04 TW TW090124548A patent/TW544529B/zh not_active IP Right Cessation
- 2001-10-05 KR KR1020010061392A patent/KR20020027261A/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
TW544529B (en) | 2003-08-01 |
US6785215B2 (en) | 2004-08-31 |
US20020060973A1 (en) | 2002-05-23 |
KR20020027261A (ko) | 2002-04-13 |
CN1365013A (zh) | 2002-08-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1305050C (zh) | 光学头 | |
CN1104716C (zh) | 光学传感装置 | |
CN1287185C (zh) | 用于光学头的物镜、光学头以及光盘驱动器 | |
CN1112706A (zh) | 光拾取装置,光盘记录和/或重放装置及补偿彗形象差的方法 | |
CN1343354A (zh) | 光学拾取装置的光学*** | |
CN1347555A (zh) | 光学拾取装置的光学*** | |
CN1641766A (zh) | 用于光盘的物镜 | |
CN1354875A (zh) | 光学拾取装置 | |
CN1277140C (zh) | 物镜设计方法、透镜及使用该透镜的光学***、光传感头和光盘装置 | |
CN1249699C (zh) | 用于信息记录介质重放的光学拾波器 | |
CN1255791C (zh) | 光学扫描装置 | |
CN1071471C (zh) | 光信息记录媒体的记录再生装置 | |
CN100337139C (zh) | 光学拾取器的物镜 | |
CN1230701C (zh) | 用于光学头的物镜 | |
CN1420377A (zh) | 物镜及拾光装置 | |
CN1299283C (zh) | 光学扫描设备、用于该设备的透镜***及其制造方法 | |
CN1211791C (zh) | 光学拾波装置 | |
CN1448750A (zh) | 光学读取设备的物镜 | |
CN1828745A (zh) | 衍射光栅、光拾取器和光盘装置 | |
CN1605100A (zh) | 光学扫描装置 | |
CN1217218C (zh) | 用于光学头的光学*** | |
CN1624783A (zh) | 半导体激光器单元和光学头装置 | |
CN100340889C (zh) | 用于光学拾波器的物镜 | |
CN1472564A (zh) | 光学元件、光头、用于校正球面象差的方法,以及光学记录/再现装置 | |
CN1153197C (zh) | 光学拾波器和其所用的校正透镜 |
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 | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151104 Address after: Tokyo, Japan Patentee after: HOYA Corporation Address before: Tokyo, Japan Patentee before: Pentax Co., Ltd. |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160127 Address after: Tokyo, Japan, Japan Patentee after: Konica Minolta Opto, Inc. Address before: Tokyo, Japan Patentee before: HOYA Corporation |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20061129 |