JPS5698722A - Optical device - Google Patents

Optical device

Info

Publication number
JPS5698722A
JPS5698722A JP17199679A JP17199679A JPS5698722A JP S5698722 A JPS5698722 A JP S5698722A JP 17199679 A JP17199679 A JP 17199679A JP 17199679 A JP17199679 A JP 17199679A JP S5698722 A JPS5698722 A JP S5698722A
Authority
JP
Japan
Prior art keywords
shaft
lock member
optical
compression spring
activated
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
JP17199679A
Other languages
Japanese (ja)
Inventor
Akifumi Nakada
Sadao Mizuno
Yoshikazu Goto
Yasuhisa Fukushima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP17199679A priority Critical patent/JPS5698722A/en
Publication of JPS5698722A publication Critical patent/JPS5698722A/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To prevent the optical units of an photodisk device from vibrating during recording, by fixing the optical unit at every track pitch. CONSTITUTION:Rod 25 for fixation is fitted to optical table 8. Further, lock member 27 is arranged rotatably around shaft 28. Furthermore, lock member 27 is activated around shaft 28 by compression spring 29 normally clockwise. As solenoid 33 is activated, shaft 30 is pulled down against the force of compression spring 29 and lock member 27 rotates on shaft 28 counterclockwise. Consequently, fixation rod 25 is fixed by being sandwiched in between lock members 26 and 27 to stop the movement of the optical unit moving in the radius direction of the disk.
JP17199679A 1979-12-29 1979-12-29 Optical device Pending JPS5698722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17199679A JPS5698722A (en) 1979-12-29 1979-12-29 Optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17199679A JPS5698722A (en) 1979-12-29 1979-12-29 Optical device

Publications (1)

Publication Number Publication Date
JPS5698722A true JPS5698722A (en) 1981-08-08

Family

ID=15933587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17199679A Pending JPS5698722A (en) 1979-12-29 1979-12-29 Optical device

Country Status (1)

Country Link
JP (1) JPS5698722A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539543A1 (en) * 1983-01-18 1984-07-20 Staar Sa LOCKING DEVICE FOR TURNKEY APPARATUS
FR2548424A1 (en) * 1983-06-30 1985-01-04 Staar Sa MEMORY DEVICE FOR RECORDING MACHINES, ESPECIALLY OPTICAL READING
NL8402018A (en) * 1983-06-30 1985-01-16 Staar Sa POSITION MEMORY FOR A LASER DISPLAY.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539543A1 (en) * 1983-01-18 1984-07-20 Staar Sa LOCKING DEVICE FOR TURNKEY APPARATUS
FR2548424A1 (en) * 1983-06-30 1985-01-04 Staar Sa MEMORY DEVICE FOR RECORDING MACHINES, ESPECIALLY OPTICAL READING
NL8402018A (en) * 1983-06-30 1985-01-16 Staar Sa POSITION MEMORY FOR A LASER DISPLAY.

Similar Documents

Publication Publication Date Title
MY123588A (en) Recording and / or reproducing apparatus for recording medium and damper mechanism employed in such apparatus.
JPS6435125A (en) Torsion damping device
JPS5698722A (en) Optical device
BR7706758A (en) IMPROVEMENT IN REGULATING DEVICE FOR SPRING BRAKE ACTUATOR
EP0107853A3 (en) Magnetic disk drive apparatus
ES278226U (en) Damping device for a drum brake, brake support plate incorporating the same and a drum brake with support plate provided with such a device.
KR920002102A (en) Disc straightener
FR2346541A1 (en) Barrier with pivoting arm - has springs attached to rail clear of axis to absorb weight when moving
FR2538485B1 (en) DEVICE FOR ADJUSTING THE ADJUSTMENT OF THE LININGS OF A FRICTION BRAKE, IN PARTICULAR OF A DRUM BRAKE
JPS55100540A (en) Original pressure contact apparatus
JPS52153073A (en) Spring device for preventing vibration of friction pad in disc brake
JPS56107266A (en) Pressure-plate opening-closing device of copying machine or the like
JPS56105351A (en) Reel drive disc device
JPS5425407A (en) Fixing device for motor
JPS5438141A (en) Magnetic disc apparatus
JPS56135835A (en) Screen winding braking device
Dengel et al. New Device for the Mechanical Testing of Materials
JPS53134177A (en) Noise prevention mechanism in brake device
SU616201A1 (en) Braking device for gravity conveyer rollers
JPS5263552A (en) Adjustable bracket fastening device employing elastic body
JPS5443709A (en) Flexible magnetic disc device
JPS52113746A (en) Mounting/demounting device
JPS5597585A (en) Indicating mechanism for opening and shuting of valve
JPS6475383A (en) Emergency stop device for elevator
JPS541527A (en) Seat belt taking-up motion