GB2312547A - Optical pickup device mounted on silicon substrate - Google Patents

Optical pickup device mounted on silicon substrate Download PDF

Info

Publication number
GB2312547A
GB2312547A GB9708506A GB9708506A GB2312547A GB 2312547 A GB2312547 A GB 2312547A GB 9708506 A GB9708506 A GB 9708506A GB 9708506 A GB9708506 A GB 9708506A GB 2312547 A GB2312547 A GB 2312547A
Authority
GB
United Kingdom
Prior art keywords
prism
laser beam
optical
transmitting
silicon substrate
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.)
Withdrawn
Application number
GB9708506A
Other languages
English (en)
Other versions
GB9708506D0 (en
Inventor
Yang-Oh Choi
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.)
WiniaDaewoo Co Ltd
Original Assignee
Daewoo Electronics Co Ltd
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.)
Filing date
Publication date
Application filed by Daewoo Electronics Co Ltd filed Critical Daewoo Electronics Co Ltd
Publication of GB9708506D0 publication Critical patent/GB9708506D0/en
Publication of GB2312547A publication Critical patent/GB2312547A/en
Withdrawn legal-status Critical Current

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
    • G11B7/12—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
    • G11B7/1359—Single prisms
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • 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
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • 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)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
GB9708506A 1996-04-26 1997-04-25 Optical pickup device mounted on silicon substrate Withdrawn GB2312547A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960013002A KR0174473B1 (ko) 1996-04-26 1996-04-26 광 픽-업 장치

Publications (2)

Publication Number Publication Date
GB9708506D0 GB9708506D0 (en) 1997-06-18
GB2312547A true GB2312547A (en) 1997-10-29

Family

ID=19456770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9708506A Withdrawn GB2312547A (en) 1996-04-26 1997-04-25 Optical pickup device mounted on silicon substrate

Country Status (3)

Country Link
JP (1) JPH1055568A (ko)
KR (1) KR0174473B1 (ko)
GB (1) GB2312547A (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3696496B2 (ja) * 2000-10-10 2005-09-21 アルプス電気株式会社 複合光学部品及びそれを用いた複合光学ユニット

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258450A1 (en) * 1986-02-24 1988-03-09 Sony Corporation Device for detecting focus
EP0278406A2 (en) * 1987-02-06 1988-08-17 Sony Corporation Optical pickup head
EP0468612A2 (en) * 1990-07-25 1992-01-29 Pioneer Electronic Corporation Optical pickup
EP0545905A2 (en) * 1987-07-30 1993-06-09 Sony Corporation Optical pickup element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258450A1 (en) * 1986-02-24 1988-03-09 Sony Corporation Device for detecting focus
EP0278406A2 (en) * 1987-02-06 1988-08-17 Sony Corporation Optical pickup head
EP0545905A2 (en) * 1987-07-30 1993-06-09 Sony Corporation Optical pickup element
EP0468612A2 (en) * 1990-07-25 1992-01-29 Pioneer Electronic Corporation Optical pickup

Also Published As

Publication number Publication date
KR970071552A (ko) 1997-11-07
GB9708506D0 (en) 1997-06-18
JPH1055568A (ja) 1998-02-24
KR0174473B1 (ko) 1999-04-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)