wavefront measurement techniques

Wavefront measurement techniques are methods used to analyze how light waves travel and interact with surfaces. They help assess the quality of optical systems, like lenses and mirrors, by measuring distortions in the wavefronts of light. Techniques include the Shack-Hartmann sensor, which uses an array of lenses to map wavefront shapes, and interferometry, which uses the interference of light waves to detect deviations. These measurements are crucial in applications such as improving vision correction in glasses and contact lenses, as well as in designing high-performance optical instruments.