WO2004015693A3 - Optical unit with light-emitting source - Google Patents

Optical unit with light-emitting source Download PDF

Info

Publication number
WO2004015693A3
WO2004015693A3 PCT/IB2003/003326 IB0303326W WO2004015693A3 WO 2004015693 A3 WO2004015693 A3 WO 2004015693A3 IB 0303326 W IB0303326 W IB 0303326W WO 2004015693 A3 WO2004015693 A3 WO 2004015693A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical unit
light
light source
emitting source
support
Prior art date
Application number
PCT/IB2003/003326
Other languages
French (fr)
Other versions
WO2004015693A2 (en
Inventor
Gwenole Stouthuysen
Original Assignee
Koninkl Philips Electronics Nv
Gwenole Stouthuysen
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 Koninkl Philips Electronics Nv, Gwenole Stouthuysen filed Critical Koninkl Philips Electronics Nv
Priority to AU2003251098A priority Critical patent/AU2003251098A1/en
Publication of WO2004015693A2 publication Critical patent/WO2004015693A2/en
Publication of WO2004015693A3 publication Critical patent/WO2004015693A3/en

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
    • G11B7/125—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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The invention relates to an optical unit which comprises a support (1) and a light source (5) supported by the support and which accommodates an optical guiding system for guiding the light beam emitted by the light source. In order to allow the optical unit to contain a high-power light source, a thermally insulating element (23) is provided between the light source and the support.
PCT/IB2003/003326 2002-08-09 2003-07-23 Optical unit with light-emitting source WO2004015693A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003251098A AU2003251098A1 (en) 2002-08-09 2003-07-23 Optical unit with light-emitting source

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02078330 2002-08-09
EP02078330.4 2002-08-09

Publications (2)

Publication Number Publication Date
WO2004015693A2 WO2004015693A2 (en) 2004-02-19
WO2004015693A3 true WO2004015693A3 (en) 2004-04-22

Family

ID=31502794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/003326 WO2004015693A2 (en) 2002-08-09 2003-07-23 Optical unit with light-emitting source

Country Status (3)

Country Link
AU (1) AU2003251098A1 (en)
TW (1) TW200418006A (en)
WO (1) WO2004015693A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383168A (en) * 1993-04-01 1995-01-17 Eastman Kodak Company Actively athermalized optical head assembly
US5386291A (en) * 1992-11-25 1995-01-31 Mitutoyo Corporation Displacement sensor including a heat insulating member partitioning the moving scale and the semiconductor laser
US5832015A (en) * 1994-09-20 1998-11-03 Fuji Photo Film Co., Ltd. Laser-diode-pumped solid-state laser
JP2002033426A (en) * 2000-07-18 2002-01-31 Ricoh Co Ltd Stem and optical pickup

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5386291A (en) * 1992-11-25 1995-01-31 Mitutoyo Corporation Displacement sensor including a heat insulating member partitioning the moving scale and the semiconductor laser
US5383168A (en) * 1993-04-01 1995-01-17 Eastman Kodak Company Actively athermalized optical head assembly
US5832015A (en) * 1994-09-20 1998-11-03 Fuji Photo Film Co., Ltd. Laser-diode-pumped solid-state laser
JP2002033426A (en) * 2000-07-18 2002-01-31 Ricoh Co Ltd Stem and optical pickup

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 05 3 May 2002 (2002-05-03) *

Also Published As

Publication number Publication date
AU2003251098A1 (en) 2004-02-25
TW200418006A (en) 2004-09-16
WO2004015693A2 (en) 2004-02-19
AU2003251098A8 (en) 2004-02-25

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