Standardization of a 5-meter Standard Scale in Terms of Wave Length of Light, (I)

Abstract

An interference comparator is constructed for the standardization of a 5-meter standard scale in terms of wave length of light . The interferometer consists of three FabryPerot etalons: 5 cm., 50 cm. and 5 m. ones . Optical multiplication of lengths is executed by spectroscopic method under normally incident ray . Interference rings and fringes are photographed by spectrographs. The present report gives the general description of the apparatus.