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Proposal of Optical Floppy Disk Head and Preliminary Spacing Experiment Between Lensless Head and Disk

Research Project

Project/Area Number 04805038
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 電子機器工学
Research InstitutionTOKAI UNIVERSITY

Principal Investigator

GOTO Kenya  Tokai Univ., School of High-Technology for Human Welfare. Professor, 開発工学部, 教授 (20234982)

Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1993: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1992: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsOptical memory / Optical disk / Laser diode / Near field pattern / Gaussian beam / Beam profile / Bernoulli principle / Micro optics / 半導体レーザチップ / レーザ共振器 / 光ディスク記録媒体 / 光ディスク記録ピット / レーザ出力モニタリング / 微小光学
Research Abstract

A new optical floppy disk system using a very simple optical head which consists of a laser diode chip, a photodiode chip and a heatsink is proposed and fundamental experiments with laser diodes are performed. The system has no optical element like a lens or a prism, and also no focus actuator. Experimental results show that the spacing between the recording film and the light-emitting edge of a laser chip could be designed to be as great as 5-10mum, which is greater than the expected value. This is avarable solution for improving the dust problem between the head and the disk. As the head is simple and low in weight, a low-cost disk drive with high access time may be possible.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] K.Goto,T.Sato,H.Yokota: "The basic study of micro-optics head for optical floppy disk system" J.Advanced Science. 4. 24 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto,Y.Sato,S.Mita: "Proposal of Optical Floppy Disk Head and Preliminary Spacing Experimentbetween Lensless Head and Disk" Jpn.J.Appl.Phys.,No.11B. 32. 5459-5460 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 後藤顕也,佐藤稔尚 他: "レンズレス光ディスクヘッドの基礎実験(1)" 光学連合シンポジウム旭川'93. 95-96 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 後藤顕也,佐藤稔尚: "光フロッピーディスクの提案および記録の基礎実験(1)" 東海大学紀要 開発工学部. 3. 79-95 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto,T.Sato: "Optical Floppy Disk Head and Microlens Formation on an Edge Surface of Laser Diode Chip." Conf.Digest of Micro-Optics Conference. 232-235 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto,Y.Sato,S.Mita: "Spacing Characteristics Between Lensless Optical Head and Disk." Conf.Digest of ISOM/ODS'93. PD4,1-PD4,2 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto, T.Sato, H.Yokota: ""The basic study of micro-optics head for optical floppy disk system"" J.Advanced Science. Vol.4. C-24 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto, Y.Sato, S.Mita: ""Proposal of Optical Floppy Disk Head and Preliminary Spacing Experiment between Lensless Head and Disk"" Jpn.J.Appl.Phys.No.11B, 32. 5459-5460 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto, Y.Sato: ""Some fundamental experiment for a lensless optical disk head(1)"" Conf.Digest of Japan Optics'93, Asahikawa, Hokkaido. 95-96 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto, Y.Sato: ""Proposal and Preliminary Experiment of Lensless Optical Disk Head(1)"" The Bulletin of School of High-Technology for Human Welfare Tokai University. 3. 79-95 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto, T.Sato: ""Optical Floppy Disk Head and Microlens Formation on an Edge Surface of Laser Diode Chip"" Conf.Digest of Micro-Optics Conference. 232-235 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto, Y.Sato, S.Mita: ""Spacing Characteristics Between Lensless Optical Head and Disk."" Conf.Digest of ISOM/ODS'93. PD4, 1-PD4, 2 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Goto,T.Sato,H.Yokota: "The basic study of micro-optics head for optical floppy disk system" J.Advanced Science. 4. C-24 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Goto,Y.Sato,S.Mita: "Proposal of Optical Floppy Disk Head and Preliminary Spacing Experimentbetween Lensless Head and Disk" Jpn.J.Appl.Phys.No.11B. 32. 5459-5460 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 後藤顕也,佐藤稔尚他: "レンズレス光ディスクヘッドの基礎実験(1)" 光学連合シンポジウム旭川′93. 95-96 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 後藤顕也,佐藤稔尚: "光ディスクヘッドと微小光学" 東海大学紀要開発工学部. 3. 125-148 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Goto,T.Sato: "Optical Floppy Disk Head and Microlens Formation on an Edge Surface of Laser Diode Chip." Conf.Digest of Micro-Optics Conference. 232-235 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Goto,Y.Sato,S.Mita: "Spacing Characteristics Between Lensless Optical Head and Disk." Conf.Digest of ISOM/ODS′93. PD4,1-PD4,2 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Sato,H.Yokota and K.Goto: "The Basic Study of Micro-Optics Head for Optical Floppy Disk Systems" Journal Adranced Science No.4. 4. C-24 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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