APPARATUS AND METHOD FOR MEASURING THICKNESS AND REFRACTIVE INDEX OF SAMPLE

摘要

PURPOSE: A device and a method for measuring the thickness and refractivity of a sample are provided to increase the measurement accuracy of the thickness and refractivity of a sample by using the migration phenomenon of the optical path length due to the refractivity of the sample. CONSTITUTION: A device for measuring the thickness and refractivity of a sample comprises an optical distribution part(20), a reference light reflecting body(30), a measurement light reflecting body(40) and optical detecting part(50). The optical distribution part distributes the light researched from a light source(10) into reference light and measured light. The measurement light reflecting body reflects the measurement light transmitting sample toward the optical distribution part.