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GB2056746A - Play-back stylus for disc - Google Patents

Play-back stylus for disc

Info

Publication number
GB2056746A
GB2056746A GB8026178A GB8026178A GB2056746A GB 2056746 A GB2056746 A GB 2056746A GB 8026178 A GB8026178 A GB 8026178A GB 8026178 A GB8026178 A GB 8026178A GB 2056746 A GB2056746 A GB 2056746A
Authority
GB
United Kingdom
Prior art keywords
stylus
central axis
play
shank
disc
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
GB8026178A
Other versions
GB2056746B (en
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 JEWEL INDUSTRY CO Ltd
Original Assignee
OGURA JEWEL INDUSTRY 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 OGURA JEWEL INDUSTRY CO Ltd filed Critical OGURA JEWEL INDUSTRY CO Ltd
Publication of GB2056746A publication Critical patent/GB2056746A/en
Application granted granted Critical
Publication of GB2056746B publication Critical patent/GB2056746B/en
Expired 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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Magnetic Heads (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Play-back stylus for video and record disks, which stylus has a shank (1) forming a stylus tip A and having a rectangular or flattened polygonal shape in its horizontal sectional shape perpendicular to the central axis L'. The sides of the horizontal sectional shape are different in length in such a manner that, assuming one side is "1" in length, the other side is less than 1.2 //cBA 2. The point (2) of the stylus tip A may be so formed that the central axis L thereof is coincident with the central axis L' of the shank (1) or eccentric with respect to the central axis of the shank (1).
GB8026178A 1978-12-27 1979-12-26 Play-back stylus for disc Expired GB2056746B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GB2056746A true GB2056746A (en) 1981-03-18
GB2056746B GB2056746B (en) 1983-05-18

Family

ID=15707592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8026178A Expired GB2056746B (en) 1978-12-27 1979-12-26 Play-back stylus for disc

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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137011A (en) * 1983-03-18 1984-09-26 Rca Corp Stylus holder
FR2568711A1 (en) * 1984-07-31 1986-02-07 Zafira METHOD AND DEVICE FOR MANUFACTURING ELLIPTICAL READING DIAMONDS AND ELLIPTICAL DIAMONDS THUS OBTAINED
EP0253769A2 (en) * 1986-07-09 1988-01-20 Fritz Gyger, Jr. Scanning needle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442099C2 (en) * 1984-11-17 1987-01-22 Kort Elektronik GmbH, 3251 Ottenstein Stylus for scanning a tone groove

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137011A (en) * 1983-03-18 1984-09-26 Rca Corp Stylus holder
FR2568711A1 (en) * 1984-07-31 1986-02-07 Zafira METHOD AND DEVICE FOR MANUFACTURING ELLIPTICAL READING DIAMONDS AND ELLIPTICAL DIAMONDS THUS OBTAINED
EP0253769A2 (en) * 1986-07-09 1988-01-20 Fritz Gyger, Jr. Scanning needle
EP0253769A3 (en) * 1986-07-09 1989-07-05 Fritz Gyger, Jr. Scanning needle

Also Published As

Publication number Publication date
DK338080A (en) 1980-08-06
DE2953445C2 (en) 1984-11-29
JPS5589904A (en) 1980-07-08
WO1980001429A1 (en) 1980-07-10
GB2056746B (en) 1983-05-18
DE2953445T1 (en) 1981-01-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee