| 释义 | extraordinary ray
 extraordinary rayn  (General Physics) optics the plane-polarized ray of light that does not obey the laws of refraction in a doubly refracting crystal. Compare double refraction, ordinary rayextraordinary ray
 extraordinary ray[ik′strȯr·dən‚er·ē ′rā]  (optics) One of two rays into which a ray incident on an anisotropic uniaxial crystal is split; its deviation at the crystal's surface depends on the orientation of the crystal, and it is deviated even in the case of normal incidence. MedicalSeebirefringence |