| 释义 |
stress-optic law stress-optic law[′stres ′äp·tik ‚lȯ] (optics) In a transparent, isotropic plate subjected to a biaxial stress field, the relative retardation Rt between the two components produced by temporary double refraction is equal to Ct (p-q), which in turn is equal to n λ; C is the stress-optic coefficient, t the plate thickness, p and q the principal stresses, n the number of fringes which have passed the point during application of the load, and λ the wavelength of the light. |