METHOD OF TESTING LENSE USING SHACK-HARTMANN WAVEFRONT SENSOR

摘要

A method for testing a lens using a Shack-Hartmann wavefront sensor is provided to measure the difference between a reference property and a measured property of the lens by precisely checking spots formed by micro-lenses. A wavefront to be transmitted through a lens to be inspected is calculated, based on a design data of the lens(S200). First spots are set by calculating the position of plural images which are detected by an image sensor when the calculated wavefront passes through a plurality of micro lenses(S300). The first spots correspond to lens sections of the micro lens. Second spots which are positions of images that are detected by the image sensor when the wavefront passes through the micro lenses after passing through the lens to be inspected, are measured(S500). The second spots correspond to the nearest neighboring first spots, respectively and it is determined that the second spots are formed by the micro-lens section corresponding to the first spots(S600). The displacement between the first and second spots is calculated(S800).