JPS6430028A - Optical head position detecting mechanism - Google Patents

Optical head position detecting mechanism

Info

Publication number
JPS6430028A
JPS6430028A JP18547487A JP18547487A JPS6430028A JP S6430028 A JPS6430028 A JP S6430028A JP 18547487 A JP18547487 A JP 18547487A JP 18547487 A JP18547487 A JP 18547487A JP S6430028 A JPS6430028 A JP S6430028A
Authority
JP
Japan
Prior art keywords
optical
beams
optical head
made incident
position detecting
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
JP18547487A
Other languages
Japanese (ja)
Inventor
Yasuo Kitada
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 JP18547487A priority Critical patent/JPS6430028A/en
Publication of JPS6430028A publication Critical patent/JPS6430028A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To reduce the size and weight of the titled mechanism by combining a part of beams projected from a light source for an optical head with an optical position detector for receiving the beams to detect a position. CONSTITUTION:A semiconductor laser is used as an optical source for a fixed optical system 1, beams are projected as parallel beams 8 and the parallel beams 8 are made incident upon an optical pickup 2 and focused on an optical disk by an objective lens 3 through a beam splitter 6. On the other hand, a part of the parallel beams 8 is separated by the beam splitter 6 and made incident upon an optical position detector 5 through a condenser lens 7. Since the separated beams are made incident upon the detector 5, the position of the optical head can be extracted as an electric signal and the position of the optical head can be detected. Consequently, the size and weight of the mechanism can be reduced.
JP18547487A 1987-07-27 1987-07-27 Optical head position detecting mechanism Pending JPS6430028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18547487A JPS6430028A (en) 1987-07-27 1987-07-27 Optical head position detecting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18547487A JPS6430028A (en) 1987-07-27 1987-07-27 Optical head position detecting mechanism

Publications (1)

Publication Number Publication Date
JPS6430028A true JPS6430028A (en) 1989-01-31

Family

ID=16171398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18547487A Pending JPS6430028A (en) 1987-07-27 1987-07-27 Optical head position detecting mechanism

Country Status (1)

Country Link
JP (1) JPS6430028A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280030A (en) * 1985-06-05 1986-12-10 Toshiba Corp Recording and reproducing device for optical disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280030A (en) * 1985-06-05 1986-12-10 Toshiba Corp Recording and reproducing device for optical disk

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