HP 10702A Linear Interferometer 1st Grade

This item is an HP 10702A Linear Interferometer with one HP 10703A Retroreflector attached. No converter window or second reflector is included. This is the basic interferometer in the 1.5� cube factor. It consists of a polarizing beam-splitter and the corner-cube reflector. One interferometer and one detector are required for each axis in the Hewlett-Packard Laser Interferometer Distance Measurement Apparatus.