Wavefront sensing device for measuring optical aberrations with symmetry cilu00ecndrica

摘要

"The device sensor wavefront with symmetry cilu00ecndrica to measure optical aberrations.Remarkably, a technique with cylindrical symmetry to measure wavefront that emerges from optical systems, and determine through these aberrations present in such a system.The device which implements this technique is mainly based on a lens with this symmetry called concentric logs.And formed by successive rings of cylindrical lenses which close upon themselves forming circles.The basic principle of operation used in the project requires an optical system to focus the light emitted from a laser beam emitting source at the back of the eye, i.e., in the retina.The reflected light from a diffuse form from this point through the optical system, which is the eye, and then is projected through the lens concentric on a CCD sensor logs.The points raised in the sensor are processed mathematically in an algorithm adapted to cylindrical symmetry, and written in functions also adapted this symmetry.The results are the components of the aberrations present in the eye, written in polar coordinates in terms of the polynomials of Zernike.