| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a calculation method capable of simply and accurately calculating reflectance of a transparent body and transmittance per unit thickness of a transparent body base material without actual measurement.SOLUTION: A beam is made incident on transparent plate-like bodies A and B, which constituted of the same base materials and having different thicknesses and rectangular parallelepiped shapes. As the transmittance of the beam, which transmitting and emitted from each plate-like bodies A and B, a first transmittance Tof the beam transmitting the plate-like body A and a second transmittance Tof the beam transmitting the plate-like body B are measured. When reflectances of front and rear surfaces of both plate-like bodies A and B are assumed as r, and base material transmittances of both plate-like bodies A and B are respectively assumed as tand t, a numerical value r obtained as a solution of following formula stands for a reflectance.</p> |
