This application presents advantages of Shack-Hartmann technology in optimizing and measuring assembled lenses. Featuring a choice of several operating wavelengths within a single instrument, the 2X Pass offers wavelength agility unmatched by interferometers and autocollimator products. Fast measurement speed of 1 to 50 Hz and a large dynamic range of more than 100 waves enables rapid convergence of lens optimization using Modular Transfer Function (MTF), Zernike bar plots, and Seidel aberration polar plots through 360-degree rotation and off-axis measurement up to 50 degrees.
This application describes measurement of a 50 mm focal length camera lens at various lens speeds. An example of an infinity corrected configuration, wavefront, MTF, and Strehl ratios are reported at several apertures ranging from f/1.8 to f/4. Standard wavefront sensors are available for the UV visible-NIR, and infrared spectrum.