公开(公告)号：US20040008346A1

公开(公告)日：2004-01-15

申请号：US10255940

申请日：2002-09-27

Applicant: National Inst. of Advanced Ind. Science and Tech.

Inventor： Etsuo Kawate

IPC: G01J003/42

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/08 ,  G01N21/41 ,  G01N21/55 ,  G01N21/59 ,  G01N2021/558

Abstract: There is provided an optical system for measurement of optical constant capable of measuring the absolute reflectance and the absolute transmittance for determining the optical constant of a substance with excellent accuracy without replacing the optical system during the measurement by using a different system for measuring the absolute reflectance and the absolute transmittance of the sample, comprising an incoming side beam switching mirror for selectively switching the direction of the light from a light source to a first or second converged light reflecting means side, first and second converged light reflecting means for projecting the light from the beam switching mirror so as to be converged in an intersecting manner at the position of a sample holder, the sample bolder capable of selectively positioning a sample fitting hole or a through hole at the converging position by the converged light reflecting means by advancing/retracting the sample fitting hole or the through hole, first and second received light reflecting means which are disposed on the optical path of the light reflected by or transmitted through a sample set in the sample fitting hole on the sample holder or the through hole, and direct the light toward a single exiting side beam switching mirror, and the exiting side beam switching mirror capable of switching the direction of the light projected via the received light reflecting means toward a single detector, and the absolute reflectance and the absolute transmittance for the face side incidence and the back side incidence of the sample.

Abstract translation: 提供了一种用于测量绝对反射率和绝对透射率的光学常数的光学系统，其用于确定物质的光学常数，而不用在测量期间使用不同的系统来测量绝对反射率 以及样品的绝对透射率，包括用于选择性地将来自光源的光的方向切换到第一或第二会聚光反射装置侧的入射侧光束切换镜，第一和第二会聚光反射装置，用于将光从 所述光束切换镜以在所述样品保持器的位置处相交的方式会聚，所述样品检测器能够通过所述会聚光反射装置通过前进/后退选择性地定位在会聚位置的样品嵌合孔或通孔 样品安装孔或通孔， 第一和第二接收光反射装置，其设置在由样本保持器或通孔上的样本装配孔中反射或透过的样本的光路上，并将光引导到单个离开侧光束切换 反射镜和能够将经由接收的光反射装置投射的光的方向朝向单个检测器切换的出射侧光束切换镜，以及样品的正面入射和背面入射的绝对反射率和绝对透射率 。