红宝石的色度学研究

Study on Colorimetry of Ruby

根据色度学原理，利用USB2000＋光纤光谱仪，量化红宝石颜色的主波长或补色波长、色调角以及颜色描述的分析可知：色调角屹在（0°，18°），补色波长A。为490—496nm时，红宝石色调为红色；色调角hab在（342°，360°），补色波长A。为497～509nm时，红宝石色调为粉红色；色调角^二在（324°，342°），补色波长λe为509—542nm时，红宝石色调为紫红色；色调角坛在（306。，324。），补色波长A。为542—570nm时，红宝石色调为紫色。因此，利用光纤光谱仪、适当的照明方式及光谱采集方法，应用色度学原理，可以客观、定量地描述红宝石的颜色，可作为评价红宝石颜色的适用技术。

According to the principle of colorimetry, the color parameter indexes of ruby are quantitated by the USB2000 ＋ fiber spectrometer. The color of ruby can be distinguished by means of the complementary wavelength and hue angle：When the hue angle in 0°-18° and the complementary wavelength is 490-496 nm, rubyg hue is red ;when the hue angle in 342°-360° and the complementary wavelength is 497-509 nm, mby hue is pink ;when the hue angle in 324°-342° and the complementary wavelength is 509-542 nm, rubyg hue is purple red; when the hue angle in 306°-324° and the complementary wavelength is 542-570 nm, ruby hue is purple. Therefore, it can objectively and quantitatively describe the color of ruby by using the fiber-optic spectrometer and the appropriate method of lighting and spectrum collection, and it also can be used as the adaptable technique of evaluating the color of ruby.