FR2659479A1 - Tete optique d'enregistrement/reproduction pour disque optique. - Google Patents

Tete optique d'enregistrement/reproduction pour disque optique. Download PDF

Info

Publication number
FR2659479A1
FR2659479A1 FR9101784A FR9101784A FR2659479A1 FR 2659479 A1 FR2659479 A1 FR 2659479A1 FR 9101784 A FR9101784 A FR 9101784A FR 9101784 A FR9101784 A FR 9101784A FR 2659479 A1 FR2659479 A1 FR 2659479A1
Authority
FR
France
Prior art keywords
light
optical disc
optical
optical head
reflected
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.)
Pending
Application number
FR9101784A
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
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of FR2659479A1 publication Critical patent/FR2659479A1/fr
Pending 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)
FR9101784A 1990-02-16 1991-02-14 Tete optique d'enregistrement/reproduction pour disque optique. Pending FR2659479A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990015110U JPH03106529U (US07709020-20100504-C00041.png) 1990-02-16 1990-02-16

Publications (1)

Publication Number Publication Date
FR2659479A1 true FR2659479A1 (fr) 1991-09-13

Family

ID=11879693

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9101784A Pending FR2659479A1 (fr) 1990-02-16 1991-02-14 Tete optique d'enregistrement/reproduction pour disque optique.

Country Status (4)

Country Link
JP (1) JPH03106529U (US07709020-20100504-C00041.png)
CA (1) CA2036412A1 (US07709020-20100504-C00041.png)
DE (1) DE4104779A1 (US07709020-20100504-C00041.png)
FR (1) FR2659479A1 (US07709020-20100504-C00041.png)

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

Citations (2)

* 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
US4734905A (en) * 1983-12-07 1988-03-29 Canon Kabushiki Kaisha Optical head device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6448248A (en) * 1987-08-17 1989-02-22 Ricoh Kk Optical pick-up device

Patent Citations (2)

* 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
US4734905A (en) * 1983-12-07 1988-03-29 Canon Kabushiki Kaisha Optical head device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NAUMANN/SCHROEDER 'Bauelemente der optik - taschenbuch der technischen optik' 1987 , CARL HANSER VERLAG , MUNICH / VIENNA *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 133 (P-362)(1856) 8 Juin 1985 & JP-A-60 015 828 ( CANON KK ) *

Also Published As

Publication number Publication date
JPH03106529U (US07709020-20100504-C00041.png) 1991-11-05
CA2036412A1 (en) 1991-08-17
DE4104779A1 (de) 1991-08-29

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