JPS57130267A - Arm leading device of rotary recording medium reproducing device - Google Patents

Arm leading device of rotary recording medium reproducing device

Info

Publication number
JPS57130267A
JPS57130267A JP1433681A JP1433681A JPS57130267A JP S57130267 A JPS57130267 A JP S57130267A JP 1433681 A JP1433681 A JP 1433681A JP 1433681 A JP1433681 A JP 1433681A JP S57130267 A JPS57130267 A JP S57130267A
Authority
JP
Japan
Prior art keywords
cantilever
light
photodetecting elements
arrow
arm leading
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
JP1433681A
Other languages
Japanese (ja)
Inventor
Masayuki Inoue
Yoshio Miura
Katsunobu Takeda
Kichizaemon Okazaki
Toshihiko 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.)
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 JP1433681A priority Critical patent/JPS57130267A/en
Publication of JPS57130267A publication Critical patent/JPS57130267A/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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/38—Guiding, e.g. constructions or arrangements providing linear or other special tracking characteristics

Abstract

PURPOSE:To control the speed and direction of rotation by comparing the outputs of a cantilever made of a light-transmissive member, a light emitting element provided to the base of the cantilever, and two photodetecting elements provided opposite the tip of the cantilever. CONSTITUTION:A video disk 1 rotates and a scanning stylus 13 moves as shown by an arrow A. A light-transmissive cantilever 11 slants around a damper 12 as shown by an arrow A through a chip holder 14. Light from a light emitting element 15 is projected on two pieces 23a at right angles, transmitted in the cantilever 11 by repeated nearly-total reflection, and emitted from two pieces of a wedge 23b to reach photodetecting elements 16a and 16b. When the cantilever 11 slants as shown by the arrow A as the video disk 1 rotates, the quantity of light incident to the photodetecting elements 16a and 16b varies. The output voltages of the photodetecting elements 16a and 16b are applied to a comparator 17, and their difference in output voltage is applied through a low-pass filter 18 and a hysteresis comparator 19 to a motor driving circuit 20 which controls the turning speed, etc., of an arm leading motor 21.
JP1433681A 1981-02-04 1981-02-04 Arm leading device of rotary recording medium reproducing device Pending JPS57130267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1433681A JPS57130267A (en) 1981-02-04 1981-02-04 Arm leading device of rotary recording medium reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1433681A JPS57130267A (en) 1981-02-04 1981-02-04 Arm leading device of rotary recording medium reproducing device

Publications (1)

Publication Number Publication Date
JPS57130267A true JPS57130267A (en) 1982-08-12

Family

ID=11858218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1433681A Pending JPS57130267A (en) 1981-02-04 1981-02-04 Arm leading device of rotary recording medium reproducing device

Country Status (1)

Country Link
JP (1) JPS57130267A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2013094238A1 (en) * 2011-12-22 2015-04-27 株式会社島津製作所 Container installation mechanism and autosampler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2013094238A1 (en) * 2011-12-22 2015-04-27 株式会社島津製作所 Container installation mechanism and autosampler

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