| 摘要 |
<p>A photographic reproportioning apparatus for changing one dimension of an image has a main travel board (29) supporting a sub-travel board (31) both moving linearly. The photosensitive member moves relative to an opaque mask (116, 117) having an exposure window (124). Motion transmitting structure (99, 111) moves both sub-travel board at the same speed or less, comprising adjustable control bar (68), connected to first drive (99) on main travel board, which drive drives second drive (111) on main travel board and sub-travel board. Speed of first drive depends on angular position of speed control bar (68) relative to path of main travel board and its speed. First drive rotates wheel (107), which is used to change linear image to arcuate image. A second tapered window (128) on mask (116, 117) diverges from axis of rotation of wheel providing even light exposure along length of exposure line, when wheel and main travel board are used to make an arcuate image.</p> |
