DEVICE POSITIONING OPTICAL CONSTITUTING MEMBER IN OPTICAL PATH

摘要

PROBLEM TO BE SOLVED: To constitute and improve a device to position an optical element in an optical path so that plural optical elements are easily, quickly and accurately exchanged. SOLUTION: A holder 3 is guided to a guide block 5 which is installed at the optical path 2 and possesses the path 4 of the optical path 2 as a magazine slider 3, and a constituting member 1 is provided with an optical activating surface 6 that is positioned within a plane 8 in parallel with the guide surface 7 of the magazine slider 3.