FROST IMAGE RECORDING MEDIUM AND METHOD AND APPARATUS FOR PREPARING AND READING FROST IMAGE

摘要

-JP- 311490, 312779,315957,342249)-The data recording medium (10) is mfd. by laminating an electrode (13) and a recording layer (11) of a pinene polymer having a molecular weight of 500-10,000 on a support (15). By thermal development, a thermally stable frost image can be produced without causing attenuation of data charge generated on the resin surface. Transmitted or reflected light can be accordingly used for reproduction of the frost image, without provision of a photoconductive layer coloration of which has bad influence. Since voltage impression exposure is made, the degree of unevenness of the frost image changes in accordance with the exposure value. Therefore, a tone wedge effect can be provided and high resolution can be obtained.