Optical interferometer for optical measurement, includes an optical part, e.g. a beam splitter divided between a piece fixed in the housing and a removable piece

摘要

The optical interferometer includes an optical part, e.g. a beam splitter or reflector, which is divided into two parts. One part (35) is fastened to the housing (40) and the other is movable optical part (36,37) which can be moved within the housing or removed from it.