MEASURING METHOD AND DEVICE OF RELATIVE REFRACTIVE INDEX

摘要

PROBLEM TO BE SOLVED: To measure a relative refractive index without measuring the actual thickness of a measuring object. SOLUTION: An optical distance between the first control point and the second control point in which a measuring object supported in a medium is sandwiched between the points, and an optical thickness of the measuring object on a line connected the control points are measured when the measuring object has the first geometrical thickness on the line, and measured when the measuring object has the second geometrical thickness. Using these 2 results, a relative refractive index of the measuring object in the medium can be obtained. COPYRIGHT: (C)2003,JPO