| 摘要 |
PURPOSE:To measure the spectral transmissivity to natural light of a substance having a polarization characteristic with one measuring operation, by making emitted light from a spectroscope incident to a light diffusion plate and making its reflected light incident to a sample. CONSTITUTION:Exit light of a spectroscope M which is made incident light from a light source L is reflected by a reflecting mirror MR and is made into parallel light flux and then, is made incident to a light diffusion plate D. A slit-shaped collimator C is arranged in front of a sample S and only the light flux in the direction vertical to the plate D is made incident to the sample S among the light flux reflected scatteringly by the plate D. And, the light transmitted the sample S is made incident to an integral globe I and exit light emitted from a window different from a sample transmitted light incidence window of the globe I is made incident to a photodetector DT and then, the spectral transmissivity is measured. Hereby, the spectral characteristic of the sample is measured by the light nearer to natural light than that in using a prism spectroscope without using an expensive apparatus such as the prism spectroscope. |
