Light induced capacitance changes in donor polymers (or...

Details Light induced capacitance changes in donor polymers (or... Light induced capacitance changes in donor polymers (or...

G - Physics

11

B

96/219

G11B 11/05 (2006.01) G11B 7/244 (2006.01) G11B 7/245 (2006.01) G11B 9/06 (2006.01)

Patent

CA 1175706

YO980-049 LIGHT INDUCED CAPACITANCE CHANGES IN DONOR POLYMERS (OR SMALL MOLECULES) FILMS AND ITS USE FOR INFORMATION STORAGE IN VIDEO DISKS AND THE LIKE ABSTRACT A method for capacitatively storing data on a grooveless storage device is provided. The storage device is comprised of a conductive substrate having a layer of a photosensitive composition which dielectric constant is varied in the presence of irradiation. The method is carried out by exposing a layer of a photosensitive composition to irradiation in a predetermined pattern. The exposed'layer is fixed by heating. Video disks for recording and playing back video signals can be prepared in accordance with the present method.

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