JPH0556571B2 - - Google Patents

Info

Publication number
JPH0556571B2
JPH0556571B2 JP12236784A JP12236784A JPH0556571B2 JP H0556571 B2 JPH0556571 B2 JP H0556571B2 JP 12236784 A JP12236784 A JP 12236784A JP 12236784 A JP12236784 A JP 12236784A JP H0556571 B2 JPH0556571 B2 JP H0556571B2
Authority
JP
Japan
Prior art keywords
sin
groove
order
light
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.)
Expired - Lifetime
Application number
JP12236784A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61945A (ja
Inventor
Seiji Nishiwaki
Yoshikazu Goto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12236784A priority Critical patent/JPS61945A/ja
Publication of JPS61945A publication Critical patent/JPS61945A/ja
Publication of JPH0556571B2 publication Critical patent/JPH0556571B2/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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10—Indicating arrangements; Warning arrangements
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP12236784A 1984-06-14 1984-06-14 光デイスク溝形状測定装置 Granted JPS61945A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12236784A JPS61945A (ja) 1984-06-14 1984-06-14 光デイスク溝形状測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12236784A JPS61945A (ja) 1984-06-14 1984-06-14 光デイスク溝形状測定装置

Publications (2)

Publication Number Publication Date
JPS61945A JPS61945A (ja) 1986-01-06
JPH0556571B2 true JPH0556571B2 (en]) 1993-08-19

Family

ID=14834111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12236784A Granted JPS61945A (ja) 1984-06-14 1984-06-14 光デイスク溝形状測定装置

Country Status (1)

Country Link
JP (1) JPS61945A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0261511A (ja) * 1988-08-29 1990-03-01 Nippon Telegr & Teleph Corp <Ntt> 周期性表面構造の測定装置
CA2132270A1 (en) * 1993-10-28 1995-04-29 Erich Lerch Automatic pipetting apparatus having a cleaning device

Also Published As

Publication number Publication date
JPS61945A (ja) 1986-01-06

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