JPS54107330A - Recording member - Google Patents

Recording member

Info

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
Application number
JP1428478A
Other languages
Japanese (ja)
Inventor
Hajime Kobayashi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP1428478A priority Critical patent/JPS54107330A/en
Publication of JPS54107330A publication Critical patent/JPS54107330A/en
Pending legal-status Critical Current

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
JP1428478A 1978-02-10 1978-02-10 Recording member Pending JPS54107330A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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