| 摘要 |
PURPOSE:To increase the picture reading speed driving simultaneously and in parallel the liquid crystal cells corresponding to plural photoelectric transducers provided on a single long-size photodetecting surface. CONSTITUTION:For a photoelectric transducer 8, the independent photoelectric transducers 10 are bonded close to each other on an insulated substrate 9 with a back electrode used as a conductor. The organic photoconductive matters are attached the transducers 10. Then the lead wires 11, 11... are led out from each back electrode. An optical shutter 12 using liquid crystal is put between the element 8 and an image forming optical system. The shutter 12 contains many liquid crystal segments 13 having a minute width respectively which are distributed close to each other along the image forming line of the image forming optical system. Then independent driving circuits 14 are provided every width corresponding to the width of each group 10 of the transducer 8. Then the segments 13, 13... are driven from an end to the other side simultaneously, in parallel and in series. |
