…The most common type of dispersion prism is one with an A = 60°. Constant deviation prisms (such as Abbe prisms) that have a constant minimum deviation angle for all wavelengths are also used. As for materials, flint glass, which has a large dispersion, is used for visible light, quartz or fluorite for ultraviolet light, and rock salt or potassium bromide crystals for infrared light. … *Some of the terminology explanations that mention "Abbe prism" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…分散用のプリズムにはA=60゜のものがもっとも多い。すべての波長に対して一定の最小偏角をもつ定偏角プリズム(アッベのプリズムなど)も用いられる。材料としては,可視光に対しては分散の大きいフリントガラス,紫外線に対しては水晶や蛍石,赤外線には岩塩や臭化カリウムなどの結晶が用いられる。… ※「アッベのプリズム」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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