APPARATUS FOR REGULATING OPTICAL PATH OF INTERFERENCE SYSTEM AND OPTICAL PATH REGULATION METHOD USING THE SAME

摘要

PURPOSE: An optical path control device at the interference meter and an optical path control method using the same are provided to control an optical path by controlling an interference lens of a linnik structure. CONSTITUTION: A reference lens(110) guides light divided through a beam splitter(101) to a vertical direction. A relative lens(120) guides the light divided through the beam splitter to a horizontal direction. A guide unit(123) is inserted into a first horizontal position fixing unit(121) and slides the relative lens to the horizontal direction. A first horizontal position control unit(127) controls the location of the relative lens by controlling the location of the guide unit. A second horizontal position control unit(130) is fixed which can move to a third predetermined distance(130-1) based on an end portion of the relative lens through a second horizontal position fixing unit(133). [Reference numerals] (150) Camera unit; (AA) Signal processing unit; (BB) Light source