| 摘要 |
<p>A projection imaging apparatus for producing a hard copy having a predetermined pattern includes a liquid crystal cell (16) having an image of the pattern, a source of radiation (30) directed to the cell for projecting the image, a substrate (40) which is sensitive to this radiation for receiving the projected image, and a controlling device (50) for controlling the duration of this radiation and the exposure of the substrate to the projected image.</p> |
