公开(公告)号：DE2112199A1

公开(公告)日：1971-10-07

申请号：DE2112199

申请日：1971-03-13

Applicant: IBM

Inventor： KAZAN BENJAMIN

IPC: B41M5/42 ,  G03B15/00 ,  G03B27/30 ,  G03G5/153 ,  G03G13/22 ,  G03G19/00 ,  G03G15/00

Abstract: Photocopying and magnetic recording re enhanced by employing a recording medium, such as a heat-sensitive paper or a magnetic film adjacent to a semiconductor layer. When the semiconductor is exposed to a low level light image, a charge pattern is created in its surface which is retained and which produces a conductivity pattern in the semiconductor layer. The application of radio-frequency power to the semiconductor converts the conductivity pattern to a heat pattern which is recorded as a visible image on the heat-sensitive paper or as data on the magnetic film.