光波干渉による標準尺の測定法の研究於よび測定装置の試作

抄録

A brief description is given of an interferometric method for the direct evaluation of line standards in terms of wave-length of light, and its application to the practical measuring instrument for precision scales up to one meter.
In order to transfer the interval of the lines to be measured to the mechanical displacement of a reflecting mirror of interferometer by the application of Eppenstein's method, a photo-electric microscope is tested experimentally and the Eppenstein's principle is analysed theoretically. The characteristic of interferometers which have the right angle prisms or corner-cube prisms, is examined analytically in order to estimate the measuring accuracy of the mechanical displacement by the method of fringe counting.
The accuracy of the practical instrument is 0.05μ in the length of 1 meter.