GB9707538D0 - An optical system for beam shaping and an optical pickup employing the same - Google Patents

An optical system for beam shaping and an optical pickup employing the same

Info

Publication number
GB9707538D0
GB9707538D0 GBGB9707538.6A GB9707538A GB9707538D0 GB 9707538 D0 GB9707538 D0 GB 9707538D0 GB 9707538 A GB9707538 A GB 9707538A GB 9707538 D0 GB9707538 D0 GB 9707538D0
Authority
GB
United Kingdom
Prior art keywords
same
beam shaping
optical system
optical
pickup employing
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.)
Granted
Application number
GBGB9707538.6A
Other versions
GB2322455A (en
GB2322455B (en
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of GB9707538D0 publication Critical patent/GB9707538D0/en
Publication of GB2322455A publication Critical patent/GB2322455A/en
Application granted granted Critical
Publication of GB2322455B publication Critical patent/GB2322455B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0085—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with both a detector and a source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
    • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0052—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses
    • G02B27/0966—Cylindrical 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
    • G11B7/1365—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
    • G11B7/1398—Means for shaping the cross-section of the beam, e.g. into circular or elliptical cross-section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
GB9707538A 1997-01-28 1997-04-14 An optical system for beam shaping and an optical pickup employing the same Expired - Fee Related GB2322455B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970002498A KR100288967B1 (en) 1997-01-28 1997-01-28 Optical system for beam shaping and optical pickup employing the same

Publications (3)

Publication Number Publication Date
GB9707538D0 true GB9707538D0 (en) 1997-06-04
GB2322455A GB2322455A (en) 1998-08-26
GB2322455B GB2322455B (en) 1999-01-13

Family

ID=19495768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9707538A Expired - Fee Related GB2322455B (en) 1997-01-28 1997-04-14 An optical system for beam shaping and an optical pickup employing the same

Country Status (9)

Country Link
JP (1) JPH10208291A (en)
KR (1) KR100288967B1 (en)
CN (1) CN1156722C (en)
DE (1) DE19802389B4 (en)
GB (1) GB2322455B (en)
HK (1) HK1009876A1 (en)
MY (1) MY118337A (en)
NL (1) NL1008116C2 (en)
RU (1) RU2176097C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3347676B2 (en) 1998-10-29 2002-11-20 キヤノン株式会社 Illumination device and projection display device using the same
KR20010054955A (en) * 1999-12-08 2001-07-02 구자홍 Optical Pickup Apparatus
DE10117402A1 (en) * 2001-04-06 2002-10-10 Thomson Brandt Gmbh Light beam shaping device converts elliptical beam cross-section into circular beam cross-section by extending shorter elliptical axis and reducing longer elliptical axis
DE10248769B3 (en) * 2002-10-18 2004-07-15 Osram Opto Semiconductors Gmbh Optical device for geometric shaping of light beam profile e.g. for coupling laser radiation emitted by laser diode with input end of optical fibre
US10551038B2 (en) 2012-03-18 2020-02-04 Robe Lighting S.R.O. Modular multisource beam shaping system
EP2828575B1 (en) * 2012-03-18 2016-11-23 Robe Lighting, Inc A multisource beam shaping system
CN105158913B (en) * 2013-05-13 2019-06-21 深圳光峰科技股份有限公司 Laser light source, wavelength convert light source, light combination light source and optical projection system
CN104836114B (en) * 2015-05-27 2018-04-06 中国工程物理研究院应用电子学研究所 A kind of fast and slow axis beam quality homogenizer of semiconductor laser
CN111939304A (en) * 2020-10-19 2020-11-17 武汉光谷航天三江激光产业技术研究院有限公司 Laser virus killing device based on beam shaping and refraction and reflection control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1204199A (en) * 1982-02-19 1986-05-06 Shigeo Kubota Optical apparatus
JPS60241013A (en) * 1984-05-16 1985-11-29 Matsushita Electric Ind Co Ltd Optical pickup
EP0310711B1 (en) * 1987-10-05 1993-09-01 Hitachi, Ltd. Optical device with phase-locked diodelaser array
JPH01211332A (en) * 1988-02-19 1989-08-24 Matsushita Electric Ind Co Ltd Optical head
JPH0827968B2 (en) * 1988-08-19 1996-03-21 松下電器産業株式会社 Beam shaping device and optical head device
JPH0289384A (en) * 1988-09-27 1990-03-29 Sony Corp Semiconductor laser device
EP0429243A3 (en) * 1989-11-17 1991-12-27 Minnesota Mining And Manufacturing Company Beam shaping system using diffraction
US5237457A (en) * 1990-10-04 1993-08-17 Asahi Kogaku Kogyo Kabushiki Kaisha Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism
JPH04287011A (en) * 1991-03-18 1992-10-12 Hitachi Ltd Optical scanner and recording device using the same
US5251060A (en) * 1991-09-30 1993-10-05 Sumitomo Electric Industries, Ltd. Light-source unit

Also Published As

Publication number Publication date
CN1156722C (en) 2004-07-07
KR19980066783A (en) 1998-10-15
KR100288967B1 (en) 2001-05-02
GB2322455A (en) 1998-08-26
GB2322455B (en) 1999-01-13
CN1189669A (en) 1998-08-05
MY118337A (en) 2004-10-30
NL1008116A1 (en) 1998-07-29
JPH10208291A (en) 1998-08-07
HK1009876A1 (en) 1999-06-11
NL1008116C2 (en) 2000-07-13
DE19802389B4 (en) 2005-06-02
DE19802389A1 (en) 1998-08-20
RU2176097C2 (en) 2001-11-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090414