JPS6433730A - Optical recording and reproducing device - Google Patents

Optical recording and reproducing device

Info

Publication number
JPS6433730A
JPS6433730A JP62188886A JP18888687A JPS6433730A JP S6433730 A JPS6433730 A JP S6433730A JP 62188886 A JP62188886 A JP 62188886A JP 18888687 A JP18888687 A JP 18888687A JP S6433730 A JPS6433730 A JP S6433730A
Authority
JP
Japan
Prior art keywords
signal
light
tracking
moving
objective lens
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
JP62188886A
Other languages
Japanese (ja)
Inventor
Kimiyuki Koyanagi
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 JP62188886A priority Critical patent/JPS6433730A/en
Publication of JPS6433730A publication Critical patent/JPS6433730A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To execute stable tracking control over a wide range by detecting the moving of an objective lens accompanied with the tracking control in a tracking direction and correcting a tracking error signal with the detecting signal. CONSTITUTION:A light from a light source 1 composed of a semiconductor laser, etc., is reflected from an information carrier 4 and light-received by a bisectional photodetector 5, an operation processing is executed by an operational amplifier 6 and the tracking error signal is outputted. On the other hand, a corner cube 92, which reflects a luminous flux from a second light source 92, is provided on a holding member 7 to hold an objective lens 3 and the light from a light source 91 is reflected by the corner cube 92 and led to a detecting device 93 to be the bisectional photodetector. Then, a signal corresponding moving quantity in the tracking direction of the objective lens 3 is sent from a moving detecting means 9 to a correcting circuit 10. The tracking error signal is sent from the operational amplifier 6 to the correcting circuit 10 and corrected here by an output signal from the moving detecting means 9. Then, the corrected signal is outputted to a servo circuit 11.
JP62188886A 1987-07-30 1987-07-30 Optical recording and reproducing device Pending JPS6433730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62188886A JPS6433730A (en) 1987-07-30 1987-07-30 Optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62188886A JPS6433730A (en) 1987-07-30 1987-07-30 Optical recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS6433730A true JPS6433730A (en) 1989-02-03

Family

ID=16231600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62188886A Pending JPS6433730A (en) 1987-07-30 1987-07-30 Optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6433730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220126173A1 (en) * 2013-03-13 2022-04-28 Karsten Manufacturing Corporation Ball striking device having a covering element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4625532Y1 (en) * 1968-04-15 1971-09-02
JPS5225329Y2 (en) * 1975-02-25 1977-06-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4625532Y1 (en) * 1968-04-15 1971-09-02
JPS5225329Y2 (en) * 1975-02-25 1977-06-09

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220126173A1 (en) * 2013-03-13 2022-04-28 Karsten Manufacturing Corporation Ball striking device having a covering element
US11931627B2 (en) * 2013-03-13 2024-03-19 Karsten Manufacturing Corporation Ball striking device having a covering element

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