JPS57103110A - Centering device for recording track of recording disk - Google Patents

Centering device for recording track of recording disk

Info

Publication number
JPS57103110A
JPS57103110A JP17997580A JP17997580A JPS57103110A JP S57103110 A JPS57103110 A JP S57103110A JP 17997580 A JP17997580 A JP 17997580A JP 17997580 A JP17997580 A JP 17997580A JP S57103110 A JPS57103110 A JP S57103110A
Authority
JP
Japan
Prior art keywords
disk
recording
reflected light
light beams
track
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
JP17997580A
Other languages
Japanese (ja)
Other versions
JPS6349282B2 (en
Inventor
Takashi Nishio
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.)
YUNIBAASARU PAIONIA KK
Pioneer Video Corp
Universal Pioneer Corp
Original Assignee
YUNIBAASARU PAIONIA KK
Pioneer Video Corp
Universal Pioneer 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 YUNIBAASARU PAIONIA KK, Pioneer Video Corp, Universal Pioneer Corp filed Critical YUNIBAASARU PAIONIA KK
Priority to JP17997580A priority Critical patent/JPS57103110A/en
Publication of JPS57103110A publication Critical patent/JPS57103110A/en
Publication of JPS6349282B2 publication Critical patent/JPS6349282B2/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs

Landscapes

  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:To detect the center point of recording tracks, by irradiating more than one point on the innermost circumference of a disk recording surface with single-wavelength light beams and detecting their reflected light beams. CONSTITUTION:A disk mounting table 1 on which a recording disk 2 is mounted is movable in directions X and Y independently by carriage motors 3 and 4. The circumference of an innermost circumferential track is irradiated with single-wavelength laser beam bundles (a)-(d) from four unshown light sources, and their reflected light beams are made incident to photodetectors 6-9. Then, the carriage motors 3 and 4 are driven in accordance with a difference in the quantity of the reflected light and when the track center point of the disk is found, a center hole is bored by a working drill.
JP17997580A 1980-12-19 1980-12-19 Centering device for recording track of recording disk Granted JPS57103110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17997580A JPS57103110A (en) 1980-12-19 1980-12-19 Centering device for recording track of recording disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17997580A JPS57103110A (en) 1980-12-19 1980-12-19 Centering device for recording track of recording disk

Publications (2)

Publication Number Publication Date
JPS57103110A true JPS57103110A (en) 1982-06-26
JPS6349282B2 JPS6349282B2 (en) 1988-10-04

Family

ID=16075250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17997580A Granted JPS57103110A (en) 1980-12-19 1980-12-19 Centering device for recording track of recording disk

Country Status (1)

Country Link
JP (1) JPS57103110A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761776A (en) * 1985-12-11 1988-08-02 U.S. Philips Corporation Device for determining a centring error of an optical disc relative to the axis of rotation of a turntable supporting the disc

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56153506A (en) * 1980-03-31 1981-11-27 Polygram Gmbh Centering unit for providing central hole on disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56153506A (en) * 1980-03-31 1981-11-27 Polygram Gmbh Centering unit for providing central hole on disk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761776A (en) * 1985-12-11 1988-08-02 U.S. Philips Corporation Device for determining a centring error of an optical disc relative to the axis of rotation of a turntable supporting the disc

Also Published As

Publication number Publication date
JPS6349282B2 (en) 1988-10-04

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