| 摘要 |
PURPOSE:To eliminate the necessity of movement of originals, by using a movable running mirror in a fixed direction along which a luminous flux reflected from the same place on an original statically placed on a plane is supplied to the lens after the flux is divided into, at least, two parts. CONSTITUTION:A luminous flux produced from a point P at the running starting end of an original glass 1, is supplied to a lens 9 after it is divided into two parts and reaches image sensors 10 and 11. That is to say, the luminous flux which advances along the optical axis ray reaches the image sensors 10 and 11 after it is reflected by running mirors 4, 6, and 7, and the flux which does not contain the optical axis ray reaches the image sensors 10 and 11 after it is reflected by running mirrors 4 and 8. As the running mirror 4 runs in the direction shown by an arrow 5, the three running mirrors 6-8 also run in the same direction at a speed which is a half of that of the running mirror 4, and the auxiliary scanning on an original 2 is performed while the point P moves on the original surface. The main scanning on the original 2 in the direction of width is peformed by the self-scanning of the image sensors 10 and 11. Signals of one line of the original 2 are fetched by combining each outputted signal. |
