TWI272604B - Optical head, optical reproduction apparatus and optical record and reproduction apparatus - Google Patents
Optical head, optical reproduction apparatus and optical record and reproduction apparatus Download PDFInfo
- Publication number
- TWI272604B TWI272604B TW094104567A TW94104567A TWI272604B TW I272604 B TWI272604 B TW I272604B TW 094104567 A TW094104567 A TW 094104567A TW 94104567 A TW94104567 A TW 94104567A TW I272604 B TWI272604 B TW I272604B
- Authority
- TW
- Taiwan
- Prior art keywords
- light
- optical
- optical pickup
- light source
- photodetector
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 237
- 230000010287 polarization Effects 0.000 claims description 45
- 239000013589 supplement Substances 0.000 claims description 35
- 239000004065 semiconductor Substances 0.000 claims description 26
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 2
- 230000002238 attenuated effect Effects 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000002269 spontaneous effect Effects 0.000 description 48
- 238000012544 monitoring process Methods 0.000 description 21
- 238000011069 regeneration method Methods 0.000 description 14
- 230000008929 regeneration Effects 0.000 description 13
- 238000001514 detection method Methods 0.000 description 12
- 230000004075 alteration Effects 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000003384 imaging method Methods 0.000 description 9
- 230000005855 radiation Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- -1 poly(vinyl alcohol) Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
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
- G11B7/1395—Beam splitters or combiners
-
- 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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
- G11B7/1263—Power control during transducing, e.g. by monitoring
-
- 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
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Semiconductor Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004041701A JP2005235276A (ja) | 2004-02-18 | 2004-02-18 | 光ヘッド、光再生装置及び光記録再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200534271A TW200534271A (en) | 2005-10-16 |
| TWI272604B true TWI272604B (en) | 2007-02-01 |
Family
ID=34836426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW094104567A TWI272604B (en) | 2004-02-18 | 2005-02-17 | Optical head, optical reproduction apparatus and optical record and reproduction apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7482573B2 (enExample) |
| JP (1) | JP2005235276A (enExample) |
| CN (1) | CN100401396C (enExample) |
| TW (1) | TWI272604B (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5168997B2 (ja) * | 2007-04-13 | 2013-03-27 | パナソニック株式会社 | 画像記録装置 |
| EP3525301B1 (en) * | 2007-12-28 | 2021-11-03 | Avago Technologies International Sales Pte. Limited | Device having delta doped active region |
| RU2660761C2 (ru) * | 2013-05-27 | 2018-07-09 | Хуавей Текнолоджиз Ко., Лтд. | Устройство контроля длины волны лазера |
| JP7179050B2 (ja) * | 2018-03-30 | 2022-11-28 | ソニーセミコンダクタソリューションズ株式会社 | 記録再生装置 |
| CN108802989B (zh) * | 2018-08-17 | 2020-06-02 | 华中科技大学 | 一种并行多区域成像装置 |
| JP7075016B2 (ja) | 2019-10-18 | 2022-05-25 | 日亜化学工業株式会社 | 光源装置 |
| JP7265213B2 (ja) * | 2019-10-18 | 2023-04-26 | 日亜化学工業株式会社 | 光源装置 |
| JP7594165B2 (ja) * | 2020-06-22 | 2024-12-04 | 日亜化学工業株式会社 | 光源装置 |
| CN112816447B (zh) * | 2020-12-30 | 2022-02-15 | 华南理工大学 | 基于二维频率空间编码的多光子激发成像系统及成像方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0147620B1 (en) * | 1983-11-22 | 1991-06-05 | Kabushiki Kaisha Toshiba | Optical head |
| US4843232A (en) * | 1987-12-28 | 1989-06-27 | Allied-Signal Inc. | Optic switch and speed sensor |
| US5157459A (en) * | 1989-08-29 | 1992-10-20 | Asahi Kogaku Kogyo Kabushiki Kaisha | Wave front aberration measuring apparatus |
| JP2690634B2 (ja) * | 1991-07-08 | 1997-12-10 | シャープ株式会社 | 光ヘッド |
| JP2555239B2 (ja) | 1991-11-01 | 1996-11-20 | 株式会社日立製作所 | 光情報記録再生方法 |
| US5350917A (en) * | 1991-12-27 | 1994-09-27 | Sony Corporation | Opto-magnetic recording polarization optical apparatus including a laser diode and a light absorbing film |
| DE4404635C2 (de) * | 1993-02-17 | 1998-06-18 | Hitachi Ltd | Schwimmender optischer Abtastkopf, der integral mit einer Lichtquelle und einem Photodetektor ausgebildet ist, und optisches Plattengerät mit einem solchen |
| JPH07192294A (ja) * | 1993-12-27 | 1995-07-28 | Nec Corp | 光学式記録情報再生装置 |
| JPH08235663A (ja) * | 1995-02-24 | 1996-09-13 | Sony Corp | 光学素子 |
| JPH08255368A (ja) | 1995-03-20 | 1996-10-01 | Toshiba Corp | 光ヘッド |
| JPH10255314A (ja) | 1997-03-12 | 1998-09-25 | Ricoh Co Ltd | 光ピックアップ装置 |
| US5883872A (en) * | 1997-05-29 | 1999-03-16 | The Board Of Trustees Of The Leland Stanford Junior University | Near field magneto-optical recording system employing slit illumination |
| JP2001118281A (ja) | 1999-10-14 | 2001-04-27 | Hitachi Media Electoronics Co Ltd | 光ヘッドおよび光情報記録装置 |
| JP2001308460A (ja) * | 2000-04-27 | 2001-11-02 | Sharp Corp | 窒化物半導体レーザ素子とその光ピックアップ装置 |
| JP2002185073A (ja) * | 2000-10-04 | 2002-06-28 | Pioneer Electronic Corp | レーザ光強度制御装置 |
| US6940794B2 (en) * | 2001-08-03 | 2005-09-06 | Matsushita Electric Industrial Co., Ltd. | Information recording/reproducing apparatus that determines the number of recording layers of an information recording medium |
-
2004
- 2004-02-18 JP JP2004041701A patent/JP2005235276A/ja not_active Abandoned
-
2005
- 2005-02-17 US US11/059,604 patent/US7482573B2/en not_active Expired - Fee Related
- 2005-02-17 TW TW094104567A patent/TWI272604B/zh active
- 2005-02-18 CN CNB2005100074379A patent/CN100401396C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20050178945A1 (en) | 2005-08-18 |
| TW200534271A (en) | 2005-10-16 |
| JP2005235276A (ja) | 2005-09-02 |
| CN1658300A (zh) | 2005-08-24 |
| CN100401396C (zh) | 2008-07-09 |
| US7482573B2 (en) | 2009-01-27 |
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