JPS54107330A - Recording member - Google Patents
Recording memberInfo
- Publication number
- JPS54107330A JPS54107330A JP1428478A JP1428478A JPS54107330A JP S54107330 A JPS54107330 A JP S54107330A JP 1428478 A JP1428478 A JP 1428478A JP 1428478 A JP1428478 A JP 1428478A JP S54107330 A JPS54107330 A JP S54107330A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- recording
- radiated
- laser beam
- stylus electrode
- 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
Abstract
PURPOSE: To enable recording state to be electrically picked up by the use of stylus electrode by radiating a laser beam and changing the electric sound volume of a photochromic layer.
CONSTITUTION: A conductive layer 13 such as of Cr is provided on a base 12 such as of polished glass plate. On this are provided a recording layer 14 composed of such a photochromic layer as the one containing spiropyrane compound and further a reverse reaction inhibiting layer 15. When this recording disc 11 is placed on a turntable 10 and is fixed by means of a metallic screw 17, the layer 13 is electrically connected to a signal line 21 by way of a rotation drive shaft 16, conductive ring 19, contactor 20. The table 10 is rotated and the layer 14 is radiated over the entire surface to evenly form a color, after which it is radiated with the laser beam having been modulated by recording signals, whereby electric capacity contrast is formed in the radiated part and non-radiated part. This recording information is detected and reproduced with a stylus electrode.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1428478A JPS54107330A (en) | 1978-02-10 | 1978-02-10 | Recording member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1428478A JPS54107330A (en) | 1978-02-10 | 1978-02-10 | Recording member |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54107330A true JPS54107330A (en) | 1979-08-23 |
Family
ID=11856782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1428478A Pending JPS54107330A (en) | 1978-02-10 | 1978-02-10 | Recording member |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54107330A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62165653A (en) * | 1986-01-17 | 1987-07-22 | Sony Corp | Signal recording method |
JPH04153079A (en) * | 1990-10-18 | 1992-05-26 | Digital Sutoriimu:Kk | Erasable and rewritable paper, printing ink and printing apparatus and erasing apparatus using them |
-
1978
- 1978-02-10 JP JP1428478A patent/JPS54107330A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62165653A (en) * | 1986-01-17 | 1987-07-22 | Sony Corp | Signal recording method |
JPH04153079A (en) * | 1990-10-18 | 1992-05-26 | Digital Sutoriimu:Kk | Erasable and rewritable paper, printing ink and printing apparatus and erasing apparatus using them |
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