Source code for example.refraction

# example/

import numpy as np

[docs]def snell(theta_inc, n1, n2): """ Compute the refraction angle using Snell's Law. See Parameters ---------- theta_inc : float Incident angle in radians. n1, n2 : float The refractive index of medium of origin and destination medium. Returns ------- theta : float refraction angle Examples -------- A ray enters an air--water boundary at pi/4 radians (45 degrees). Compute exit angle. >>> snell(np.pi/4, 1.00, 1.33) 0.5605584137424605 """ return np.arcsin(n1 / n2 * np.sin(theta_inc))