AU2003247091A1 - Optical scanning device - Google Patents

Optical scanning device

Info

Publication number: AU2003247091A1
Authority: AU; Australia
Prior art keywords: scanning device; optical scanning; optical; scanning
Prior art date: 2002-07-25
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.): Abandoned

Application number

AU2003247091A

Inventor

Bernardus H. W. Hendriks

Sjoerd Stallinga

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Koninklijke Philips Electronics NV

Priority date (The priority date 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 date listed.)

2002-07-25

Filing date

2003-07-16

Publication date

2004-02-16

2003-07-16 Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV

2004-02-16 Publication of AU2003247091A1 publication Critical patent/AU2003247091A1/en

Status Abandoned legal-status Critical Current

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
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- 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
- 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
- G11B7/0908—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 focusing only
- G11B7/0909—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 focusing only by astigmatic methods
- 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
- G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
- 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
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
- 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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave 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
- 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
- G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
- 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
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops

Landscapes

Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Mathematical Physics (AREA)
Optical Recording Or Reproduction (AREA)
Optical Head (AREA)

AU2003247091A 2002-07-25 2003-07-16 Optical scanning device Abandoned AU2003247091A1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
EP02078036.7		2002-07-25
EP02078036		2002-07-25
PCT/IB2003/003253 WO2004012187A1 (en)	2002-07-25	2003-07-16	Optical scanning device

Publications (1)

Publication Number	Publication Date
AU2003247091A1 true AU2003247091A1 (en)	2004-02-16

Family

ID=30775843

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU2003247091A Abandoned AU2003247091A1 (en)	2002-07-25	2003-07-16	Optical scanning device

Country Status (3)

Country	Link
JP (1)	JP2005534133A (en)
AU (1)	AU2003247091A1 (en)
WO (1)	WO2004012187A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2008130114A (en) *	2006-11-16	2008-06-05	Funai Electric Co Ltd	Optical pickup device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5804814A (en) *	1994-05-20	1998-09-08	Musha; Toru	Optical pick-up head and integrated type optical unit for use in optical pick-up head
US4879706A (en) *	1987-07-29	1989-11-07	Laser Magnetic Storage International Company	Method and apparatus for focus and tracking in an optical disk system
CN1135802A (en) *	1994-07-29	1996-11-13	索尼公司	optical pickup device
JP3430048B2 (en) *	1998-12-24	2003-07-28	日本電気株式会社	Optical information recording / reproducing device

2003
- 2003-07-16 JP JP2004524022A patent/JP2005534133A/en not_active Withdrawn
- 2003-07-16 WO PCT/IB2003/003253 patent/WO2004012187A1/en not_active Ceased
- 2003-07-16 AU AU2003247091A patent/AU2003247091A1/en not_active Abandoned

Also Published As

Publication number	Publication date
JP2005534133A (en)	2005-11-10
WO2004012187A1 (en)	2004-02-05

Publication	Publication Date	Title
AU2003226614A1 (en)	2003-11-11	Optical device
AU2002339705A1 (en)	2003-04-22	Optical device
AU2002353213A1 (en)	2003-07-09	Optical device
AU2003259476A1 (en)	2004-04-08	Optical scanning device
AU2003201092A1 (en)	2003-07-30	Optical scanning device
AU2003215417A1 (en)	2003-10-08	Light scanning device
AU2003281580A1 (en)	2004-02-09	Optical scanning device
AU2003283780A1 (en)	2004-07-09	Optical scanning device
AU2002353277A1 (en)	2003-06-17	Optical scanning device
AU2003252647A1 (en)	2004-02-09	Lens device
AU2002347498A1 (en)	2003-06-17	Optical scanning device
AU2002351139A1 (en)	2003-06-30	Optical scanning device
AU2003241094A1 (en)	2003-12-31	Optical scanning device
AU2002353407A1 (en)	2003-07-15	Dual three-spots optical scanning device
AU2002368246A1 (en)	2004-04-19	Integrated optical device
AU2002338822A1 (en)	2004-04-19	Integrated optical device
AU2003263437A1 (en)	2004-04-19	Optical scanning device
AU2002348866A1 (en)	2003-06-23	Optical scanning device
AU2003269270A1 (en)	2004-05-04	Optical device
AU2003220849A1 (en)	2003-10-13	Optical device
AU2003274562A1 (en)	2004-06-18	Pivoting optical device
AU2003288620A1 (en)	2004-07-22	Optical scanning device
AU2002347496A1 (en)	2003-06-23	Optical scanning device
AU2003252644A1 (en)	2004-02-09	Lens device
AU2003269376A1 (en)	2004-05-25	Optical scanning device

Legal Events

Date	Code	Title	Description
2005-04-14	MK6	Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase