JPS56148742A - Optical information reproduction system - Google Patents

Optical information reproduction system

Info

Publication number
JPS56148742A
JPS56148742A JP5091080A JP5091080A JPS56148742A JP S56148742 A JPS56148742 A JP S56148742A JP 5091080 A JP5091080 A JP 5091080A JP 5091080 A JP5091080 A JP 5091080A JP S56148742 A JPS56148742 A JP S56148742A
Authority
JP
Japan
Prior art keywords
information
medium
width
control signal
radiation 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
JP5091080A
Other languages
Japanese (ja)
Inventor
Takafumi Sugano
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 JP5091080A priority Critical patent/JPS56148742A/en
Publication of JPS56148742A publication Critical patent/JPS56148742A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To simplify the device by obtaining the tracking control signal indispensable for optical reproduction simultaneously with optical reproduction of the information from an information structural medium by scannable radiation detecting elements consisting of plural pieces. CONSTITUTION:The light beam 20 from a light source is derived to an objective lens system voice coil 22 by a tracking mirror 21, and is converged onto an information structural medium 23. The light transmitted through the medium 23 is conducted to a radiation detector 24, by the output whereof the information from the medium 23 and the tracking system control signal are obtained. In the figure viewing the detector 24 from an X direction, radiation detecting elements 25 and a track locus 26 are shown. The width B of the radiation detecting element 24 group is a minimum information signal width and is a maximum track pitch width and it is necessary to select a suitable width between these. The number of the elements 25 is determined by the size of each element, and the accuracy of the tracking control signal.
JP5091080A 1980-04-17 1980-04-17 Optical information reproduction system Pending JPS56148742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5091080A JPS56148742A (en) 1980-04-17 1980-04-17 Optical information reproduction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5091080A JPS56148742A (en) 1980-04-17 1980-04-17 Optical information reproduction system

Publications (1)

Publication Number Publication Date
JPS56148742A true JPS56148742A (en) 1981-11-18

Family

ID=12871927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5091080A Pending JPS56148742A (en) 1980-04-17 1980-04-17 Optical information reproduction system

Country Status (1)

Country Link
JP (1) JPS56148742A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112790A (en) * 1993-10-16 1995-05-02 Daishin:Kk Noise preventive device for flowing in water of water storage tank, etc.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112790A (en) * 1993-10-16 1995-05-02 Daishin:Kk Noise preventive device for flowing in water of water storage tank, etc.

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