JPS56148742A - Optical information reproduction system - Google Patents
Optical information reproduction systemInfo
- 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
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.
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)
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. |
-
1980
- 1980-04-17 JP JP5091080A patent/JPS56148742A/en active Pending
Cited By (1)
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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