| 摘要 |
A method of forming grey-scale images on a photosensitive imaging medium by means of an exposing apparatus comprising a pixellated array of exposure sources, e.g., an array of light emitting diodes or liquid crystal shutters, the imaging medium being capable of spatial resolution finer than the pixel dimensions of the exposing apparatus and developing a transmission density in imaged areas that varies non-linearly with the exposure energy received by said imaged areas, in which the exposure conditions are adjusted such that the variation in average transmission over a whole pixel area from image pixel to image pixel caused by spatial energy distribution variations is less than 5% for the same energy delivered to each pixel area. |
