CA2036412A1 - Optical head - Google Patents

Optical head

Info

Publication number
CA2036412A1
CA2036412A1 CA002036412A CA2036412A CA2036412A1 CA 2036412 A1 CA2036412 A1 CA 2036412A1 CA 002036412 A CA002036412 A CA 002036412A CA 2036412 A CA2036412 A CA 2036412A CA 2036412 A1 CA2036412 A1 CA 2036412A1
Authority
CA
Canada
Prior art keywords
light
optical disk
reflecting
optical head
optical
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.)
Abandoned
Application number
CA002036412A
Other languages
English (en)
French (fr)
Inventor
Shuichi Fujita
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.)
Mitsubishi Electric Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2036412A1 publication Critical patent/CA2036412A1/en
Abandoned 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
    • G11B7/1359—Single prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
CA002036412A 1990-02-16 1991-02-15 Optical head Abandoned CA2036412A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-15110 1990-01-26
JP1990015110U JPH03106529U (OSRAM) 1990-02-16 1990-02-16

Publications (1)

Publication Number Publication Date
CA2036412A1 true CA2036412A1 (en) 1991-08-17

Family

ID=11879693

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002036412A Abandoned CA2036412A1 (en) 1990-02-16 1991-02-15 Optical head

Country Status (4)

Country Link
JP (1) JPH03106529U (OSRAM)
CA (1) CA2036412A1 (OSRAM)
DE (1) DE4104779A1 (OSRAM)
FR (1) FR2659479A1 (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311496A (en) * 1992-11-13 1994-05-10 Hyundai Electronics America Achromatic expansion prism for magneto-optical drive

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6015828A (ja) * 1983-07-08 1985-01-26 Canon Inc 光記録装置のピツクアツプ
JPS60124035A (ja) * 1983-12-07 1985-07-02 Canon Inc 光ヘッド装置
JPS6448248A (en) * 1987-08-17 1989-02-22 Ricoh Kk Optical pick-up device

Also Published As

Publication number Publication date
JPH03106529U (OSRAM) 1991-11-05
DE4104779A1 (de) 1991-08-29
FR2659479A1 (fr) 1991-09-13

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead