A method to evaluate wave-front aberrations in optical telescopes that is based on the method of curvature sensing but that solves the irradiance transport equation by variable separation is presented. This technique is simpler for processing than are previously released techniques and can perform more efficiently, as is required by active and adaptive optics. Testing for consistency of the method by evaluation of several sets of out-of-focus images obtained with the 2-m telescope at the Universidad Nacional Autónoma de México was carried out, and a stability of 10% for the derived values of Zernike coefficients was found.
© 1996 Optical Society of America
Luis Salas, "Variable Separation In Curvature Sensing: Fast Method For Solving The Irradiance Transport Equation In The Context Of Optical Telescopes," Appl. Opt. 35, 1593-1596 (1996)