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JPS5545171A - Track detection controller - Google Patents

Track detection controller

Info

Publication number
JPS5545171A
JPS5545171A JP11879078A JP11879078A JPS5545171A JP S5545171 A JPS5545171 A JP S5545171A JP 11879078 A JP11879078 A JP 11879078A JP 11879078 A JP11879078 A JP 11879078A JP S5545171 A JPS5545171 A JP S5545171A
Authority
JP
Japan
Prior art keywords
body tube
optical system
detection controller
track
adjustment
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
JP11879078A
Other languages
Japanese (ja)
Other versions
JPS6132732B2 (en
Inventor
Kenjiro Kime
Kazuo Okada
Mitsushige Kondo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11879078A priority Critical patent/JPS5545171A/en
Publication of JPS5545171A publication Critical patent/JPS5545171A/en
Publication of JPS6132732B2 publication Critical patent/JPS6132732B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To miniaturize a track detection controller with its adjustment and fabrication simplified by vibrating a light path by flexing part of a body tube, where an optical system is installed, by a piezoelectric element.
CONSTITUTION: An optical system consisting of semiconductor laser 1, condenser 2, photo detector 3, etc., is installed in body tube 7. Body tube 7 is flexed via piezoelectric element 8 provided to body tube 7 to shift lens 2. As a result, a light spot vibrates and shifts in a direction perpendicular to a track and then, the track position servo-detected by the detection signal of detector 3. This constitution simplifies the working manufacture of the body tube as well as adjustment and fabrication of the optical system installed in the body tube, and a detection controller is miniaturized.
COPYRIGHT: (C)1980,JPO&Japio
JP11879078A 1978-09-26 1978-09-26 Track detection controller Granted JPS5545171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11879078A JPS5545171A (en) 1978-09-26 1978-09-26 Track detection controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11879078A JPS5545171A (en) 1978-09-26 1978-09-26 Track detection controller

Publications (2)

Publication Number Publication Date
JPS5545171A true JPS5545171A (en) 1980-03-29
JPS6132732B2 JPS6132732B2 (en) 1986-07-29

Family

ID=14745150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11879078A Granted JPS5545171A (en) 1978-09-26 1978-09-26 Track detection controller

Country Status (1)

Country Link
JP (1) JPS5545171A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56163529A (en) * 1980-05-21 1981-12-16 Matsushita Electric Ind Co Ltd Controller for light converging position
US4334300A (en) * 1979-11-21 1982-06-08 Thomson-Csf Stigmatic optical device and an optical recording head equipped with said device
JPS57205834A (en) * 1981-06-12 1982-12-17 Matsushita Electric Ind Co Ltd Light focusing position controller
US4868821A (en) * 1983-07-06 1989-09-19 Matsushita Electric Industrial Co., Ltd. Optical pickup which includes a single objective lens having magnification equal to or greater than 3 and equal to or smaller than 5

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101103A (en) * 1972-02-29 1973-12-20
JPS5345204A (en) * 1976-10-06 1978-04-22 Olympus Optical Co Ltd Tracking method for disk-type recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101103A (en) * 1972-02-29 1973-12-20
JPS5345204A (en) * 1976-10-06 1978-04-22 Olympus Optical Co Ltd Tracking method for disk-type recording medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334300A (en) * 1979-11-21 1982-06-08 Thomson-Csf Stigmatic optical device and an optical recording head equipped with said device
JPS56163529A (en) * 1980-05-21 1981-12-16 Matsushita Electric Ind Co Ltd Controller for light converging position
JPS57205834A (en) * 1981-06-12 1982-12-17 Matsushita Electric Ind Co Ltd Light focusing position controller
US4868821A (en) * 1983-07-06 1989-09-19 Matsushita Electric Industrial Co., Ltd. Optical pickup which includes a single objective lens having magnification equal to or greater than 3 and equal to or smaller than 5

Also Published As

Publication number Publication date
JPS6132732B2 (en) 1986-07-29

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