| 摘要 |
<p>PROBLEM TO BE SOLVED: Not to make the switching function of color separation filters complicated and also make an entire device small and thin. SOLUTION: Even though a rotary shaft 17 is orthogonally arranged to the optical axis of optical path, this device does not need a broad space where a conventional disk like rotary filter, conventional flat plate-shaped mobile filter, etc., are arranged because the mounting plate 22 of the shaft 17 is provided with each color separation filter of three colors 16R, 16G and 16B which have the same distance from the rotational center and are placed in the same intervals. The entire device can be made small and thin, the filters 16R, 16G and 16B can easily be replaced because the shaft 17 is just rotated in synchronization with the image reading speed of an image pickup device 15. The device can be inexpensive and also an image can be read at a high speed.</p> |
