JPS57103140A - Video disk reproducing stylus and its working method - Google Patents

Video disk reproducing stylus and its working method

Info

Publication number
JPS57103140A
JPS57103140A JP17727580A JP17727580A JPS57103140A JP S57103140 A JPS57103140 A JP S57103140A JP 17727580 A JP17727580 A JP 17727580A JP 17727580 A JP17727580 A JP 17727580A JP S57103140 A JPS57103140 A JP S57103140A
Authority
JP
Japan
Prior art keywords
reproducing stylus
stylus
working
working method
video disk
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
JP17727580A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Hida
Ryoichi Endo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17727580A priority Critical patent/JPS57103140A/en
Publication of JPS57103140A publication Critical patent/JPS57103140A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/445—Styli particularly adapted for sensing video discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

PURPOSE:To manufacture a reproducing stylus which has high performance and long life by specifying the shape of the tip of the reproducing stylus while two concave cylindrical surfaces are contained, and by working those recessed cylindrical surfaces by using a specific cylinder polishing tool. CONSTITUTION:As for the shape of the tip part of a reproducing stylus, a recessed cylindrical surface 6 whose projection is an arc on a plane perpendicular to a sliding run direction and a plane 7 connecting with the surface 6 and nearly perpendicular to the axial core of the reproducing stylus are formed at relative positions parallel to the video-disk sliding run direction and nearly symmetric on the axial core of the reproducing stylus. Further, the outer circumference of a cylinder 9 is wound with a wire 10a and after its surface is polished smoothly, a polishing tool 8 provided with a film of a hard material 10b is used to press the tip part of the reproducing stylus against between the wires 10a of the tool 8, thereby working said surfaces 6 and 7.
JP17727580A 1980-12-17 1980-12-17 Video disk reproducing stylus and its working method Pending JPS57103140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17727580A JPS57103140A (en) 1980-12-17 1980-12-17 Video disk reproducing stylus and its working method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17727580A JPS57103140A (en) 1980-12-17 1980-12-17 Video disk reproducing stylus and its working method

Publications (1)

Publication Number Publication Date
JPS57103140A true JPS57103140A (en) 1982-06-26

Family

ID=16028196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17727580A Pending JPS57103140A (en) 1980-12-17 1980-12-17 Video disk reproducing stylus and its working method

Country Status (1)

Country Link
JP (1) JPS57103140A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0468257U (en) * 1990-10-24 1992-06-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0468257U (en) * 1990-10-24 1992-06-17

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