Description

The Michelson/Fabry-Pérot Interferometer base consists of a substantial casting that supports a machined and ground lathe bed at a convenient height for observation. The lathe bed has a precise 1 millimeters pitch geared lead screw to adjust the movable mirror carriage. The large coarse adjustment knob sets the mirror position to within 0.01 millimeters, read on a 205 millimeters, divided steel scale and a numbered dial for fractions of a millimeter. A further graduated fine adjustment knob reads to 0.0001 millimeters, and is an excellent control for precise displacements and ring counting. The interferometer optics fixed parts are mounted on vertical steel plates.