| 摘要 |
A book edge copying system is enabled by providing a full rate/. half rate scanning system modified to tilt the system axis so as to move the start of scan location to a point coincident with the book edge location. A full rate mirror, in one embodiment, is tilted at an angle to the platen perpendicular thereby effectively tilting the system axis. The off-axis angle introduced at the scan mirror is compensated for by appropriate rotation of the projection lens and the image side optical elements. |
