| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical element positioning device capable of easily performing changeover operation of an optical element while maintaining positioning accuracy of the optical element.SOLUTION: An optical element positioning device includes: a fixing unit 11 fixed to an optical device; a holding unit 12 that is provided to the fixing unit 11 movably along a given direction and holds an optical element 4b; a positioning mechanism 14 that performs positioning of the optical element 4b at a given position by acting a first force on the holding unit 12 to move along the given direction; and a guide mechanism 15 that guides the optical element 4b to the given position by acting a second force on the holding unit 12 to move along the given position, the second force being smaller than the first force and having an action range wider than that of the first force. |
