JPS59223944A - 光学式記録情報読取用ピツクアツプ装置 - Google Patents

光学式記録情報読取用ピツクアツプ装置

Info

Publication number
JPS59223944A
JPS59223944A JP58099245A JP9924583A JPS59223944A JP S59223944 A JPS59223944 A JP S59223944A JP 58099245 A JP58099245 A JP 58099245A JP 9924583 A JP9924583 A JP 9924583A JP S59223944 A JPS59223944 A JP S59223944A
Authority
JP
Japan
Prior art keywords
light source
light sources
light
focus
astigmatism
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
JP58099245A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0542736B2 (enrdf_load_stackoverflow
Inventor
Takanori Maeda
孝則 前田
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP58099245A priority Critical patent/JPS59223944A/ja
Publication of JPS59223944A publication Critical patent/JPS59223944A/ja
Publication of JPH0542736B2 publication Critical patent/JPH0542736B2/ja
Granted 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
    • G11B7/125—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
    • 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
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/022—Mountings; Housings
    • H01S5/023—Mount members, e.g. sub-mount members
    • H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
    • H01S5/02326—Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • H01S5/4031—Edge-emitting structures
    • H01S5/4037—Edge-emitting structures with active layers in more than one orientation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP58099245A 1983-06-02 1983-06-02 光学式記録情報読取用ピツクアツプ装置 Granted JPS59223944A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58099245A JPS59223944A (ja) 1983-06-02 1983-06-02 光学式記録情報読取用ピツクアツプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58099245A JPS59223944A (ja) 1983-06-02 1983-06-02 光学式記録情報読取用ピツクアツプ装置

Publications (2)

Publication Number Publication Date
JPS59223944A true JPS59223944A (ja) 1984-12-15
JPH0542736B2 JPH0542736B2 (enrdf_load_stackoverflow) 1993-06-29

Family

ID=14242308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58099245A Granted JPS59223944A (ja) 1983-06-02 1983-06-02 光学式記録情報読取用ピツクアツプ装置

Country Status (1)

Country Link
JP (1) JPS59223944A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02134735A (ja) * 1988-11-15 1990-05-23 Canon Inc 光ヘッド
JPH07193339A (ja) * 1993-11-22 1995-07-28 Xerox Corp レーザーアレイ
JPH07193340A (ja) * 1993-11-22 1995-07-28 Xerox Corp 正確に位置決めされたダイオード・レーザーの非モノリシック・アレイ
US5835466A (en) * 1995-11-22 1998-11-10 Pioneer Electronic Corporation Optical system for optical disc having first and second information
JP2002157763A (ja) * 2000-11-20 2002-05-31 Sony Corp 光ヘッド、受発光素子および光記録媒体記録再生装置
JP2003218471A (ja) * 1993-11-22 2003-07-31 Xerox Corp レーザダイオード生成方法
US8687668B2 (en) 2009-06-09 2014-04-01 Mitsubishi Electric Corporation Multi-wavelength semiconductor laser device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02134735A (ja) * 1988-11-15 1990-05-23 Canon Inc 光ヘッド
JPH07193339A (ja) * 1993-11-22 1995-07-28 Xerox Corp レーザーアレイ
JPH07193340A (ja) * 1993-11-22 1995-07-28 Xerox Corp 正確に位置決めされたダイオード・レーザーの非モノリシック・アレイ
JP2003218471A (ja) * 1993-11-22 2003-07-31 Xerox Corp レーザダイオード生成方法
JP2004274085A (ja) * 1993-11-22 2004-09-30 Xerox Corp レーザダイオードアレイ
US5835466A (en) * 1995-11-22 1998-11-10 Pioneer Electronic Corporation Optical system for optical disc having first and second information
JP2002157763A (ja) * 2000-11-20 2002-05-31 Sony Corp 光ヘッド、受発光素子および光記録媒体記録再生装置
US8687668B2 (en) 2009-06-09 2014-04-01 Mitsubishi Electric Corporation Multi-wavelength semiconductor laser device
US8891581B2 (en) 2009-06-09 2014-11-18 Mitsubishi Electric Corporation Multi-wavelength semiconductor laser device

Also Published As

Publication number Publication date
JPH0542736B2 (enrdf_load_stackoverflow) 1993-06-29

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