KR100267233B1 - 2광원을 이용한 홀로그램 광픽업 - Google Patents
2광원을 이용한 홀로그램 광픽업 Download PDFInfo
- Publication number
- KR100267233B1 KR100267233B1 KR1019960042120A KR19960042120A KR100267233B1 KR 100267233 B1 KR100267233 B1 KR 100267233B1 KR 1019960042120 A KR1019960042120 A KR 1019960042120A KR 19960042120 A KR19960042120 A KR 19960042120A KR 100267233 B1 KR100267233 B1 KR 100267233B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- disc
- hologram
- objective lens
- light source
- 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 - Fee Related
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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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
- G11B7/125—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
- G11B7/127—Lasers; Multiple laser arrays
-
- 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)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (1)
- 홀로그램을 이용한 디스크 호환 광픽업에 있어서,각각 파장이 다른 광을 발생하기 위한 제 1 및 제 2 광원과,상기한 제 1 및 제 2 광원에서 방사되는 광을 두께가 다른 디스크에 각각 집속하기 위한 대물렌즈와,상기한 디스크에서 반사되는 제 1 및 제 2 광원의 반사광을 각 파장대에서 각각 회절시키는 제 1 및 제 2 홀로그램, 그리고상기한 제 1 및 제 2 홀로그램에서 회절되는 제 1 및 제 2 광원의 반사광을 각각 수광하여 전기 신호를 검출하는 제 1 및 제 2 광검출기가 구비된 것을 특징으로 하는 홀로그램을 이용한 디스크 호환 광픽업.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960042120A KR100267233B1 (ko) | 1996-09-24 | 1996-09-24 | 2광원을 이용한 홀로그램 광픽업 |
JP09257271A JP3079075B2 (ja) | 1996-09-24 | 1997-09-22 | 二つの光源を利用したホログラム光ピックアップ |
EP97307388A EP0831469B1 (en) | 1996-09-24 | 1997-09-22 | Hologram optical pick-up using two laser sources |
DE69703921T DE69703921T2 (de) | 1996-09-24 | 1997-09-22 | Holographischer Abtastkopf mit zwei Laserquellen |
MYPI97004415A MY120954A (en) | 1996-09-24 | 1997-09-23 | Hologram optical pick-up using two laser source |
US08/936,529 US5894464A (en) | 1996-09-24 | 1997-09-24 | Hologram optical pick-up using two laser sources |
CN97120649A CN1093974C (zh) | 1996-09-24 | 1997-09-24 | 用两激光源的全息光学头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960042120A KR100267233B1 (ko) | 1996-09-24 | 1996-09-24 | 2광원을 이용한 홀로그램 광픽업 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980022835A KR19980022835A (ko) | 1998-07-06 |
KR100267233B1 true KR100267233B1 (ko) | 2000-10-16 |
Family
ID=19475160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960042120A Expired - Fee Related KR100267233B1 (ko) | 1996-09-24 | 1996-09-24 | 2광원을 이용한 홀로그램 광픽업 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5894464A (ko) |
EP (1) | EP0831469B1 (ko) |
JP (1) | JP3079075B2 (ko) |
KR (1) | KR100267233B1 (ko) |
CN (1) | CN1093974C (ko) |
DE (1) | DE69703921T2 (ko) |
MY (1) | MY120954A (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100676738B1 (ko) * | 2004-11-17 | 2007-01-31 | (주)덕진기업 | 현악기용 광픽업장치 |
US7190657B2 (en) | 2003-12-10 | 2007-03-13 | Samsung Electro-Mechanics Co., Ltd. | Optical pickup device |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100346398B1 (ko) * | 1998-10-23 | 2002-10-25 | 삼성전자 주식회사 | 계단형회절격자구조를갖는평판렌즈를채용하여cd-rw에호환하는dvd용광기록/픽업헤드 |
US6449237B1 (en) | 1996-08-29 | 2002-09-10 | Samsung Electronics Co., Ltd. | Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure |
US6765857B2 (en) | 1996-09-03 | 2004-07-20 | Samsung Electronics Co., Ltd. | Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure |
JP3823425B2 (ja) * | 1997-03-27 | 2006-09-20 | 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および光ピックアップ装置の補正素子 |
JP3778316B2 (ja) * | 1997-05-22 | 2006-05-24 | パイオニア株式会社 | 光ピックアップ装置 |
WO1998054704A1 (en) * | 1997-05-31 | 1998-12-03 | Daewoo Electronics Co., Ltd. | Optical pickup system for recording/reading different types of optical disks |
US6104689A (en) * | 1997-07-22 | 2000-08-15 | Asahi Kogaku Kogyo Kabushiki Kaisha | Sensor system for optical disc drive |
TW346687B (en) * | 1997-09-15 | 1998-12-01 | Ind Tech Res Inst | Package of semiconductor laser diode and compact disk with two-wavelength read/write head |
US6043935A (en) * | 1998-07-17 | 2000-03-28 | Hoetron, Inc. | Wavelength sensitive beam combiner with aberration correction |
GB9908404D0 (en) * | 1999-04-14 | 1999-06-09 | 02Dvd Limited | Data recording arrangements |
JP4288768B2 (ja) * | 1999-07-08 | 2009-07-01 | ソニー株式会社 | 集積光学素子及び光学ヘッド並びに光記録再生装置 |
JP4560906B2 (ja) * | 2000-01-31 | 2010-10-13 | 旭硝子株式会社 | 光ヘッド装置 |
US6928035B2 (en) * | 2000-07-07 | 2005-08-09 | Matsushita Electric Industrial Co., Ltd. | Optical pick-up, optical disk apparatus and information processing apparatus |
EP1184848B1 (en) | 2000-08-09 | 2005-05-11 | Ricoh Company, Ltd. | Optical pickup apparatus having an improved holographic unit, and optical disk drive including the same |
US6822771B2 (en) * | 2001-09-28 | 2004-11-23 | Ricoh Company, Ltd. | Optical pickup unit and optical disk drive for accurate and stable information recording and reproduction |
DE10330945A1 (de) * | 2003-07-08 | 2005-02-03 | Deutsche Thomson-Brandt Gmbh | Optischer Abtaster mit Mikrooptik zur Strahlkombination |
US7391593B2 (en) * | 2003-07-31 | 2008-06-24 | Inphase Technologies, Inc. | Cartridge shutter mechanism |
US7475413B2 (en) * | 2003-07-31 | 2009-01-06 | Inphase Technologies, Inc. | Data storage cartridge having a reduced thickness segment |
US7020885B2 (en) * | 2003-07-31 | 2006-03-28 | Inphase Technologies, Inc. | Data storage cartridge loading system |
JP4450830B2 (ja) | 2004-03-25 | 2010-04-14 | パイオニア株式会社 | 光ピックアップ |
JP2006031902A (ja) * | 2004-07-21 | 2006-02-02 | Sony Corp | 集光光学系、これを用いた光学ピックアップ装置及び光記録再生装置 |
JP2007134016A (ja) * | 2005-11-14 | 2007-05-31 | Funai Electric Co Ltd | 光ピックアップ装置 |
US8174952B2 (en) * | 2005-11-21 | 2012-05-08 | Ricoh Company, Ltd. | Light source unit, optical detector unit, optical pickup device, and optical disk device |
JP2007200476A (ja) * | 2006-01-27 | 2007-08-09 | Funai Electric Co Ltd | 光ヘッド |
JP5509137B2 (ja) * | 2010-05-14 | 2014-06-04 | シャープ株式会社 | 光ピックアップ装置 |
EP2680593A1 (en) | 2012-06-26 | 2014-01-01 | Thomson Licensing | Method of adapting 3D content to an observer wearing prescription glasses |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61260434A (ja) * | 1985-05-14 | 1986-11-18 | Matsushita Electric Ind Co Ltd | 光学的記録再生装置 |
JPH07118088B2 (ja) * | 1988-08-18 | 1995-12-18 | セイコーエプソン株式会社 | 光学ヘッド |
JP3019870B2 (ja) * | 1990-10-22 | 2000-03-13 | 松下電器産業株式会社 | 光ヘッドおよび光学的情報記録/再生装置 |
JPH04219658A (ja) * | 1990-10-12 | 1992-08-10 | Ricoh Co Ltd | 光情報記録再生装置 |
JP2960819B2 (ja) * | 1992-07-29 | 1999-10-12 | シャープ株式会社 | 光ピックアップ装置 |
DE69627752T2 (de) * | 1995-06-05 | 2003-10-16 | Nec Corp., Tokio/Tokyo | Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen |
JPH0991700A (ja) * | 1995-09-25 | 1997-04-04 | Sony Corp | 光学記録媒体の初期化方法とこれに用いる初期化装置 |
KR0166233B1 (ko) * | 1995-11-27 | 1999-03-20 | 배순훈 | 초소형 듀얼 포커스 광 픽-업장치 |
-
1996
- 1996-09-24 KR KR1019960042120A patent/KR100267233B1/ko not_active Expired - Fee Related
-
1997
- 1997-09-22 JP JP09257271A patent/JP3079075B2/ja not_active Expired - Fee Related
- 1997-09-22 EP EP97307388A patent/EP0831469B1/en not_active Expired - Lifetime
- 1997-09-22 DE DE69703921T patent/DE69703921T2/de not_active Expired - Fee Related
- 1997-09-23 MY MYPI97004415A patent/MY120954A/en unknown
- 1997-09-24 US US08/936,529 patent/US5894464A/en not_active Expired - Fee Related
- 1997-09-24 CN CN97120649A patent/CN1093974C/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7190657B2 (en) | 2003-12-10 | 2007-03-13 | Samsung Electro-Mechanics Co., Ltd. | Optical pickup device |
KR100676738B1 (ko) * | 2004-11-17 | 2007-01-31 | (주)덕진기업 | 현악기용 광픽업장치 |
Also Published As
Publication number | Publication date |
---|---|
EP0831469A3 (en) | 1998-08-05 |
KR19980022835A (ko) | 1998-07-06 |
EP0831469A2 (en) | 1998-03-25 |
JP3079075B2 (ja) | 2000-08-21 |
MY120954A (en) | 2005-12-30 |
CN1180891A (zh) | 1998-05-06 |
CN1093974C (zh) | 2002-11-06 |
DE69703921D1 (de) | 2001-02-22 |
EP0831469B1 (en) | 2001-01-17 |
JPH10124918A (ja) | 1998-05-15 |
DE69703921T2 (de) | 2001-05-23 |
US5894464A (en) | 1999-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100267233B1 (ko) | 2광원을 이용한 홀로그램 광픽업 | |
US6043912A (en) | Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens | |
CN100380477C (zh) | 可兼容不同厚度光记录介质的光拾取装置 | |
JP3319686B2 (ja) | 光ピックアップ用2位置結像対物レンズ | |
JP5124065B2 (ja) | 収束素子、光ヘッド、光情報記録再生装置および光情報記録再生方法 | |
US7046611B2 (en) | Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens | |
KR100224621B1 (ko) | 두께가 다른 디스크 호환을 위한 기록재생용 광픽업 | |
JP3471959B2 (ja) | 光ピックアップ装置 | |
JP2818408B2 (ja) | 互換型の光ピックアップ装置 | |
JP2002092934A (ja) | 単一光源を採用した互換型光ピックアップ装置 | |
KR100750104B1 (ko) | 단일 광원을 채용한 호환형 광픽업장치 | |
JPH09265639A (ja) | 光学ピックアップ装置 | |
KR100196923B1 (ko) | 2광원 광축일치 홀로그램 디스크 호환 광픽업 | |
KR100682689B1 (ko) | 복수의 발광소자를 구비한 광픽업 | |
KR100370205B1 (ko) | 호환형 광픽업장치 | |
KR100289719B1 (ko) | 호환형광픽업장치 | |
KR19990031138A (ko) | 다파장 광픽업 장치 | |
JP2818405B2 (ja) | 波長板を具備した光ピックアップ装置 | |
EP0996120A1 (en) | Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens | |
KR100234254B1 (ko) | 디스크 호환을 위한 재생신호 검출방법과 이를 이용한 고밀도 기록/재생용 광픽업 | |
KR980011137A (ko) | 광 픽-업장치 | |
KR19980028154A (ko) | 광 픽업 | |
KR20030093858A (ko) | 디브이디/고밀도 디브이디 겸용 광픽업과, 그에 따른구면수차 검출장치 | |
KR19990056370A (ko) | 호환형 광픽업장치 | |
KR20030071070A (ko) | 광픽업 검출기 구조 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19960924 |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19960924 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19981223 Patent event code: PE09021S01D |
|
AMND | Amendment | ||
E601 | Decision to refuse application | ||
PE0601 | Decision on rejection of patent |
Patent event date: 19990524 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 19981223 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |
|
J201 | Request for trial against refusal decision | ||
PJ0201 | Trial against decision of rejection |
Patent event date: 19990623 Comment text: Request for Trial against Decision on Refusal Patent event code: PJ02012R01D Patent event date: 19990524 Comment text: Decision to Refuse Application Patent event code: PJ02011S01I Appeal kind category: Appeal against decision to decline refusal Decision date: 20000527 Appeal identifier: 1999101002296 Request date: 19990623 |
|
AMND | Amendment | ||
PB0901 | Examination by re-examination before a trial |
Comment text: Amendment to Specification, etc. Patent event date: 19990722 Patent event code: PB09011R02I Comment text: Request for Trial against Decision on Refusal Patent event date: 19990623 Patent event code: PB09011R01I Comment text: Amendment to Specification, etc. Patent event date: 19990223 Patent event code: PB09011R02I |
|
B601 | Maintenance of original decision after re-examination before a trial | ||
PB0601 | Maintenance of original decision after re-examination before a trial | ||
J301 | Trial decision |
Free format text: TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 19990623 Effective date: 20000527 |
|
PJ1301 | Trial decision |
Patent event code: PJ13011S01D Patent event date: 20000531 Comment text: Trial Decision on Objection to Decision on Refusal Appeal kind category: Appeal against decision to decline refusal Request date: 19990623 Decision date: 20000527 Appeal identifier: 1999101002296 |
|
PS0901 | Examination by remand of revocation | ||
S901 | Examination by remand of revocation | ||
GRNO | Decision to grant (after opposition) | ||
PS0701 | Decision of registration after remand of revocation |
Patent event date: 20000610 Patent event code: PS07012S01D Comment text: Decision to Grant Registration Patent event date: 20000607 Patent event code: PS07011S01I Comment text: Notice of Trial Decision (Remand of Revocation) |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20000703 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 20000704 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration | ||
PR1001 | Payment of annual fee |
Payment date: 20030627 Start annual number: 4 End annual number: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 20040629 Start annual number: 5 End annual number: 5 |
|
PR1001 | Payment of annual fee |
Payment date: 20050629 Start annual number: 6 End annual number: 6 |
|
PR1001 | Payment of annual fee |
Payment date: 20060629 Start annual number: 7 End annual number: 7 |
|
PR1001 | Payment of annual fee |
Payment date: 20070628 Start annual number: 8 End annual number: 8 |
|
FPAY | Annual fee payment |
Payment date: 20080627 Year of fee payment: 9 |
|
PR1001 | Payment of annual fee |
Payment date: 20080627 Start annual number: 9 End annual number: 9 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |
Termination category: Default of registration fee Termination date: 20100610 |