JPH0542736B2 - - Google Patents

Info

Publication number
JPH0542736B2
JPH0542736B2 JP58099245A JP9924583A JPH0542736B2 JP H0542736 B2 JPH0542736 B2 JP H0542736B2 JP 58099245 A JP58099245 A JP 58099245A JP 9924583 A JP9924583 A JP 9924583A JP H0542736 B2 JPH0542736 B2 JP H0542736B2
Authority
JP
Japan
Prior art keywords
light source
light
light sources
sagittal
focus
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.)
Expired - Lifetime
Application number
JP58099245A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59223944A (ja
Inventor
Takanori Maeda
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 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 Electronic Corp filed Critical Pioneer Electronic 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 JPS59223944A (ja) 1984-12-15
JPH0542736B2 true JPH0542736B2 (en, 2012) 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 (en, 2012)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2585761B2 (ja) * 1988-11-15 1997-02-26 キヤノン株式会社 光ヘッド
US5631918A (en) * 1993-11-22 1997-05-20 Xerox Corporation Laser diode arrays with close beam offsets
US5521931A (en) * 1993-11-22 1996-05-28 Xerox Corporation Nonmonolithic arrays of accurately positioned diode lasers
US5576752A (en) * 1993-11-22 1996-11-19 Xerox Corporation Offset mounting of nonmonolithic multiwavelength lasers
JP3817286B2 (ja) * 1995-11-22 2006-09-06 パイオニア株式会社 ピックアップ制御装置および情報媒体記録装置
JP4505979B2 (ja) * 2000-11-20 2010-07-21 ソニー株式会社 光ヘッド、受発光素子および光記録媒体記録再生装置
JP5522977B2 (ja) 2009-06-09 2014-06-18 三菱電機株式会社 多波長半導体レーザ装置

Also Published As

Publication number Publication date
JPS59223944A (ja) 1984-12-15

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