JPS5589904A - Disc reproduction stylus - Google Patents

Disc reproduction stylus

Info

Publication number
JPS5589904A
JPS5589904A JP16008878A JP16008878A JPS5589904A JP S5589904 A JPS5589904 A JP S5589904A JP 16008878 A JP16008878 A JP 16008878A JP 16008878 A JP16008878 A JP 16008878A JP S5589904 A JPS5589904 A JP S5589904A
Authority
JP
Japan
Prior art keywords
length
stylus
less
shunk
raw material
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
JP16008878A
Other languages
Japanese (ja)
Inventor
Yoshihiro Ogura
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.)
OGURA HOUSEKI SEIKI KOGYO KK
Original Assignee
OGURA HOUSEKI SEIKI KOGYO 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 OGURA HOUSEKI SEIKI KOGYO KK filed Critical OGURA HOUSEKI SEIKI KOGYO KK
Priority to JP16008878A priority Critical patent/JPS5589904A/en
Priority to DE2953445T priority patent/DE2953445C2/en
Priority to PCT/JP1979/000325 priority patent/WO1980001429A1/en
Priority to GB8026178A priority patent/GB2056746B/en
Publication of JPS5589904A publication Critical patent/JPS5589904A/en
Priority to DK338080A priority patent/DK338080A/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
    • 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
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Magnetic Heads (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

PURPOSE: To make less in the manufacturing cost with small amount of diamond raw material, by taking the special value of the ratio of the length of shorter side to that of longer side, in the sectional shape of shunk of flat column on reproducing stylus.
CONSTITUTION: The plane orthogonal to the center axis l of the shunk 1 of flat prism shape reproduction stylus, i.e., the cross section of X-X line is a rectangular shape. When the length of the short side m is taken as 1, the length of the longer side n is taken as 1.2W2. Accordingly, the diamond raw material can be used in less amount and the cut off part 10 of the reproduction stylus is less in taper processing, allowing to remarkably make low the manufacture cost.
COPYRIGHT: (C)1980,JPO&Japio
JP16008878A 1978-12-27 1978-12-27 Disc reproduction stylus Pending JPS5589904A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP16008878A JPS5589904A (en) 1978-12-27 1978-12-27 Disc reproduction stylus
DE2953445T DE2953445C2 (en) 1978-12-27 1979-12-26 Pickups for records
PCT/JP1979/000325 WO1980001429A1 (en) 1978-12-27 1979-12-26 Play-back stylus for disk
GB8026178A GB2056746B (en) 1978-12-27 1979-12-26 Play-back stylus for disc
DK338080A DK338080A (en) 1978-12-27 1980-08-06 DISPOSAL TO PLAY REPLACEMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16008878A JPS5589904A (en) 1978-12-27 1978-12-27 Disc reproduction stylus

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP3556380A Division JPS5611603A (en) 1980-03-19 1980-03-19 Disc reproducing stylus

Publications (1)

Publication Number Publication Date
JPS5589904A true JPS5589904A (en) 1980-07-08

Family

ID=15707592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16008878A Pending JPS5589904A (en) 1978-12-27 1978-12-27 Disc reproduction stylus

Country Status (5)

Country Link
JP (1) JPS5589904A (en)
DE (1) DE2953445C2 (en)
DK (1) DK338080A (en)
GB (1) GB2056746B (en)
WO (1) WO1980001429A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513410A (en) * 1983-03-18 1985-04-23 Rca Corporation Pickup cartridge having stylus holder
FR2568711B1 (en) * 1984-07-31 1989-06-16 Zafira PROCESS AND DEVICE FOR MANUFACTURING ELLIPTICAL READING DIAMONDS AND ELLIPTICAL DIAMONDS THUS OBTAINED
DE3442099C2 (en) * 1984-11-17 1987-01-22 Kort Elektronik GmbH, 3251 Ottenstein Stylus for scanning a tone groove
CH670179A5 (en) * 1986-07-09 1989-05-12 Gyger Fritz

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH403326A (en) * 1964-01-20 1965-11-30 Dreher & Kauf Ohg Pickup device for pickups
JPS53168Y2 (en) * 1975-12-22 1978-01-06
JPS5927961B2 (en) * 1976-10-12 1984-07-10 日本ビクター株式会社 How to make a diamond single crystal regenerated needle
JPS5843051Y2 (en) * 1976-12-10 1983-09-29 オグラ宝石精機工業株式会社 Modified block type oval needle
JPS53138304A (en) * 1977-05-09 1978-12-02 Namiki Precision Jewel Co Ltd Reproducing stylus for record
JPS5432302A (en) * 1977-08-17 1979-03-09 Ogura Jewel Industry Co Ltd Junction diamond acoustic reproducing stylus

Also Published As

Publication number Publication date
GB2056746A (en) 1981-03-18
WO1980001429A1 (en) 1980-07-10
GB2056746B (en) 1983-05-18
DE2953445T1 (en) 1981-01-15
DK338080A (en) 1980-08-06
DE2953445C2 (en) 1984-11-29

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