偏光による宝石研究の基礎-1-
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概要
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The basic knowledge on the optical crystallograghy is introduced as a basis of investigation of gemstone. In crystals, various kinds of surfaces of reference can be considered, and they are derived from one to another. The relationships between these surfaces are discussed. In anisotropic media, behaviour of reflection and refraction of light is somewhat different from that in isotropic media, thus, in general, Snell's law does not hold for rays. Various types of optical orientation and its dispersion are also explained. In anisotropic crystals, absorption coefficient as well as its spectral distribution vary with vibration direction (pleochroism).
- 宝石学会(日本)の論文
- 1976-10-15