| 摘要 |
<p>A document imager has a flat imaging surface (16) comprising an LCD matrix (42), and control means (52) to cause the parts of the matrix corresponding to a document placed on the surface (16) to be transparent, so that a camera (24) within the imager can record an image of the document through the LCD matrix. Either the imaging surface (16) carries the outlines of a number of standard document sizes, or the LCD matrix is provided with a spaced array of permanently-transparent areas; the camera (24) detects which transparent area are covered by a document, and the control means (52) activates the LCD matrix (42) accordingly. <IMAGE></p> |
