JPS6349281B2 - - Google Patents

Info

Publication number
JPS6349281B2
JPS6349281B2 JP55179974A JP17997480A JPS6349281B2 JP S6349281 B2 JPS6349281 B2 JP S6349281B2 JP 55179974 A JP55179974 A JP 55179974A JP 17997480 A JP17997480 A JP 17997480A JP S6349281 B2 JPS6349281 B2 JP S6349281B2
Authority
JP
Japan
Prior art keywords
disk
light
recording
track
points
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
Application number
JP55179974A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57103109A (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.)
PAIONIA BIDEO KK
PAIONIA KK
Original Assignee
PAIONIA BIDEO KK
PAIONIA KK
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 PAIONIA BIDEO KK, PAIONIA KK filed Critical PAIONIA BIDEO KK
Priority to JP17997480A priority Critical patent/JPS57103109A/ja
Publication of JPS57103109A publication Critical patent/JPS57103109A/ja
Publication of JPS6349281B2 publication Critical patent/JPS6349281B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP17997480A 1980-12-19 1980-12-19 Centering device for recording track of recording disk Granted JPS57103109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17997480A JPS57103109A (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
JP17997480A JPS57103109A (en) 1980-12-19 1980-12-19 Centering device for recording track of recording disk

Publications (2)

Publication Number Publication Date
JPS57103109A JPS57103109A (en) 1982-06-26
JPS6349281B2 true JPS6349281B2 (enrdf_load_stackoverflow) 1988-10-04

Family

ID=16075230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17997480A Granted JPS57103109A (en) 1980-12-19 1980-12-19 Centering device for recording track of recording disk

Country Status (1)

Country Link
JP (1) JPS57103109A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8503411A (nl) * 1985-12-11 1987-07-01 Philips Nv Inrichting voor het bepalen van een centreringsfout van een ronde spoorvormige informatiestruktuur in een optische registratiedrager ten opzichte van de draaiingsas van een draaitafel waarop de registratiedrager is aangebracht, alsmede een apparaat voorzien van een dergelijke inrichting en een registratiedrager geschikt voor gebruik in deze inrichting.
JPH0621108Y2 (ja) * 1990-03-22 1994-06-01 日本コロムビア株式会社 光ディスクおよび読取装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012433C1 (de) * 1980-03-31 1981-10-01 Polygram Gmbh, 2000 Hamburg Vorrichtung zum Zentrieren fuer die Herstellung eines Mittellochs in Platten

Also Published As

Publication number Publication date
JPS57103109A (en) 1982-06-26

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