CN100407313C - 光学拾波器的光学系统 - Google Patents
光学拾波器的光学系统 Download PDFInfo
- Publication number
- CN100407313C CN100407313C CN2004100310729A CN200410031072A CN100407313C CN 100407313 C CN100407313 C CN 100407313C CN 2004100310729 A CN2004100310729 A CN 2004100310729A CN 200410031072 A CN200410031072 A CN 200410031072A CN 100407313 C CN100407313 C CN 100407313C
- Authority
- CN
- China
- Prior art keywords
- optical
- zone line
- central area
- object lens
- optical system
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 236
- 230000002093 peripheral effect Effects 0.000 claims description 67
- 230000014509 gene expression Effects 0.000 claims description 39
- 230000010076 replication Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 6
- 230000004075 alteration Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
- G11B7/1372—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
- G11B7/1353—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
- 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)
Abstract
Description
20A | 20B | |
M | -0.0009 | 0.0000 |
f(mm) | 3.02 | 3.00 |
设计波长(nm) | 785 | 660 |
NA | 0.53 | 0.65 |
20A | 20B | |
M | -0.0009 | 0.0000 |
f(mm) | 2.52 | 2.50 |
设计波长(nm) | 790 | 655 |
NA | 0.48 | 0.60 |
Claims (27)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003122035 | 2003-04-25 | ||
JP2003122035 | 2003-04-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1571039A CN1571039A (zh) | 2005-01-26 |
CN100407313C true CN100407313C (zh) | 2008-07-30 |
Family
ID=33296585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004100310729A Expired - Lifetime CN100407313C (zh) | 2003-04-25 | 2004-04-20 | 光学拾波器的光学系统 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7339876B2 (zh) |
CN (1) | CN100407313C (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003019545A1 (en) * | 2001-08-27 | 2003-03-06 | Koninklijke Philips Electronics N.V. | Optical scanning device |
CN1896773B (zh) * | 2005-07-12 | 2010-10-06 | Hoya株式会社 | 光盘驱动器及其物镜 |
TW200805347A (en) * | 2005-11-29 | 2008-01-16 | Konica Minolta Opto Inc | Objective lens for optical pickup apparatus, objective lens unit for optical pickup apparatus and optical pickup apparatus using the same |
JP5199655B2 (ja) * | 2007-12-12 | 2013-05-15 | Hoya株式会社 | 光情報記録再生装置用対物レンズおよび光情報記録再生装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1264899A (zh) * | 1999-01-07 | 2000-08-30 | 索尼公司 | 光拾取器以及使用该光拾取器的光记录/重放设备 |
CN1335600A (zh) * | 2000-07-08 | 2002-02-13 | 三星电子株式会社 | 采用单一光源的兼容光拾取装置 |
JP2002277732A (ja) * | 2001-03-14 | 2002-09-25 | Fuji Photo Optical Co Ltd | 回折型光ピックアップレンズおよびこれを用いた光ピックアップ装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100234257B1 (ko) | 1995-08-30 | 1999-12-15 | 윤종용 | 대물렌즈 장치 및 안정된 포커스 서보 신호를 얻는방법 및 이를 적용한 광픽업 장치 및 두께가 다른 디스크를 판별하는 방법 및 두께가 다른 디스크로부터 정보를 재생하고 기록하는 방법 |
US6222812B1 (en) | 1996-08-29 | 2001-04-24 | Samsung Electronics Co., Ltd. | Optical pickup using an optical phase plate |
JP3642909B2 (ja) * | 1997-01-29 | 2005-04-27 | 松下電器産業株式会社 | 光ヘッド |
KR100209918B1 (ko) | 1997-03-28 | 1999-07-15 | 윤종용 | 홀로그램형링렌즈를 사용하여 cd-r과 호환하는 dvd용 광픽업 |
KR100242646B1 (ko) * | 1997-03-28 | 2000-02-01 | 윤종용 | 홀로그램형 가변조리개를 사용하는 cd-r/dvd용 광기록/픽업헤드 |
KR100255243B1 (ko) | 1997-11-19 | 2000-05-01 | 윤종용 | 광기록매체들에 호환가능한 광픽업 |
US6118594A (en) | 1998-06-26 | 2000-09-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Objective lens for optical pick-up |
JP3689266B2 (ja) | 1998-06-26 | 2005-08-31 | ペンタックス株式会社 | 光ヘッド用対物レンズ |
JP2000076694A (ja) | 1998-08-25 | 2000-03-14 | Konica Corp | 光ピックアップ装置 |
JP2002092934A (ja) | 2000-07-08 | 2002-03-29 | Samsung Electronics Co Ltd | 単一光源を採用した互換型光ピックアップ装置 |
US6873590B2 (en) | 2001-03-09 | 2005-03-29 | Pentax Corporation | Objective lens for optical pick-up |
JP4098989B2 (ja) | 2001-03-09 | 2008-06-11 | ペンタックス株式会社 | 光ヘッド用対物レンズ |
US6807139B2 (en) * | 2001-04-12 | 2004-10-19 | Konica Corporation | Objective lens and optical pickup apparatus |
JP3666860B2 (ja) * | 2002-04-24 | 2005-06-29 | 松下電器産業株式会社 | 光ピックアップ装置 |
-
2004
- 2004-04-20 CN CN2004100310729A patent/CN100407313C/zh not_active Expired - Lifetime
- 2004-04-22 US US10/829,279 patent/US7339876B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1264899A (zh) * | 1999-01-07 | 2000-08-30 | 索尼公司 | 光拾取器以及使用该光拾取器的光记录/重放设备 |
CN1335600A (zh) * | 2000-07-08 | 2002-02-13 | 三星电子株式会社 | 采用单一光源的兼容光拾取装置 |
JP2002277732A (ja) * | 2001-03-14 | 2002-09-25 | Fuji Photo Optical Co Ltd | 回折型光ピックアップレンズおよびこれを用いた光ピックアップ装置 |
Also Published As
Publication number | Publication date |
---|---|
US7339876B2 (en) | 2008-03-04 |
CN1571039A (zh) | 2005-01-26 |
US20040213132A1 (en) | 2004-10-28 |
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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 | ||
ASS | Succession or assignment of patent right |
Owner name: HOYA CO., LTD. Free format text: FORMER OWNER: PENTAX CO., LTD. Effective date: 20080926 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20080926 Address after: Tokyo, Japan Patentee after: Hoya Corp. Address before: Tokyo, Japan Patentee before: KANARS DATA CORP |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160205 Address after: Tokyo, Japan Patentee after: KONICA MINOLTA,Inc. Address before: Tokyo, Japan Patentee before: Hoya Corp. |
|
CX01 | Expiry of patent term |
Granted publication date: 20080730 |
|
CX01 | Expiry of patent term |