| 摘要 |
PURPOSE:To improve focus adjustment accuracy and operation efficiency by adjusting the relative positions of a light emitting element, a short-focus lens array, and a photosensitive body by a link mechanism. CONSTITUTION:The light emitting element of a light emitting unit 1 is turned in a pattern with which resolving power is checked effectively, and the 1st adjusting screw 8 is turned to move up and down the 2nd holding span 9 and move the short-focus lens array 3 and fixed where the best resolving power is obtained. Then the 1st adjusting screw 7 is turned to move up and down the light emitting element unit 1 and the short-focus lens array 3 is moved up and down through the link mechanism 10 according to the movement of the light emitting unit 1 to put an image in focus. Consequently, an accurate focus adjustment is made efficiently.
|
