| 摘要 |
PURPOSE:To make the optical element position adjusting work simple and efficient by providing the first narrow groove and the second wide groove in the peripheral direction on the outside peripheral surface of an optical element and inserting the first pin of a position adjusting tool to the first groove and fitting loosely the second pin to the second groove. CONSTITUTION:A position adjusting tool 13 is inserted and set into a vertical hole 16 so that a pin 21 is inserted to the first narrow groove 18 and a pin 22 is fitted loosely to the second wide groove 19. The position adjusting tool 13 is rotated counterclockwise in this state to slide right an optical element 12 through the pin 21. When the position adjusting tool 12 is rotated at about 90 deg., the pin 22 is brought into contact with a contacting face 20 make it impossible that the position adjusting tool 13 is rotated furthermore, and sliding of the optical element 12 is stopped. When the position adjusting tool 13 is rotated clockwise similarly, the optical element is slided left and is stopped when the tool 13 is rotated at about 90 deg.. Thus, the sliding direction of the optical element and the rotation direction of the position adjusting tool are equalized to adjust the position of the optical element easily and efficiently. |
