球形ドーム形の真珠分光特性測定器の基礎研究
1983 年 52 巻 8 号 p. 692-702
詳細
1983 年 52 巻 8 号 p. 692-702
An equipment for measuring the reflection spectrum of a pearl was constructed from theoretical consideration. The equipment consists of a spherical dome of radius 60mm, in which a pearl is held at the center of the dome and a detector for measuring the pearl reflection spectrum. By using the equipment, relative reflection spectra of silver, cream and black pearls (radius 4mm) were measured. The measured spectra were confirmed to be appropriate comparing with the already published experimental data.
Although an error of the spectrum owing to the deviation of the pearl holding-position was also checked, it was fairly small; such a property is of strong merit in the case of high speed-measurements.
