JPS5724045A - Reproducing stylus of variation detection type reproducing element for electrostatic capacity value - Google Patents

Reproducing stylus of variation detection type reproducing element for electrostatic capacity value

Info

Publication number
JPS5724045A
JPS5724045A JP9824980A JP9824980A JPS5724045A JP S5724045 A JPS5724045 A JP S5724045A JP 9824980 A JP9824980 A JP 9824980A JP 9824980 A JP9824980 A JP 9824980A JP S5724045 A JPS5724045 A JP S5724045A
Authority
JP
Japan
Prior art keywords
reproducing stylus
reproducing
stylus
plane
capacity value
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
JP9824980A
Other languages
Japanese (ja)
Inventor
Noriyoshi Kokubo
Hideyuki Kobayashi
Keishi Segawa
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP9824980A priority Critical patent/JPS5724045A/en
Publication of JPS5724045A publication Critical patent/JPS5724045A/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
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE:To realize a long lifetime of a reproducing stylus without giving any damage to a disk surface, by forming a sliding plane to the reproducing stylus at the part drifted toward the electrode forming surface and forming the part at the lead-in side of the reproducing stylus to be connected to the above-mentioned sliding plane in such way that the distance from the disk surface increases gradually. CONSTITUTION:A sliding plane 3 is formed onto the bottom surface of a reproducing stylus main body S of diamond, sapphire, etc. and at the part drifted toward an end 2a of electrode. Then a rise surface 10 is provided at the part of the lead-in side of the main body S to be connected to the plane 3 so as to ensure a rise with an angle gamma of 3-7 deg.. At the same time, a border line 11 between the plane 3 and the surface 10 is drifted more toward the end 2a than the staright line connecting vertical angles 6 and 7. In such way, the lifetime of a reproducing stylus can be increased without giving any damage to a disk surface D.
JP9824980A 1980-07-18 1980-07-18 Reproducing stylus of variation detection type reproducing element for electrostatic capacity value Pending JPS5724045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9824980A JPS5724045A (en) 1980-07-18 1980-07-18 Reproducing stylus of variation detection type reproducing element for electrostatic capacity value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9824980A JPS5724045A (en) 1980-07-18 1980-07-18 Reproducing stylus of variation detection type reproducing element for electrostatic capacity value

Publications (1)

Publication Number Publication Date
JPS5724045A true JPS5724045A (en) 1982-02-08

Family

ID=14214675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9824980A Pending JPS5724045A (en) 1980-07-18 1980-07-18 Reproducing stylus of variation detection type reproducing element for electrostatic capacity value

Country Status (1)

Country Link
JP (1) JPS5724045A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150234A (en) * 1984-08-17 1986-03-12 Sanyo Electric Co Ltd Signal pickup device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966102A (en) * 1972-09-06 1974-06-26
JPS53105209A (en) * 1977-02-25 1978-09-13 Victor Co Of Japan Ltd Scanning stylus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966102A (en) * 1972-09-06 1974-06-26
JPS53105209A (en) * 1977-02-25 1978-09-13 Victor Co Of Japan Ltd Scanning stylus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150234A (en) * 1984-08-17 1986-03-12 Sanyo Electric Co Ltd Signal pickup device

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