Standard Spherical Lens Aided Alignment Technology Research

Reference lens, which can produce spherical wave front whose optical quality is better than λ/20 by peak-valley value in wavelength, is an important part of "95" defense system project in measurement and testing. Because it can be used in wide range of radii, the development of reference lens is becoming an urgent task to be solved. So a computer-aided alignment method for a series of reference lens is studied in detail in this paper.Based on analyzing the optical quality affecting factors and optical design, the folio wings are described in detail in this paper: (1) How to choose merit function of optical quality in terms of the specific reference lens, and sensitive structure parameters to optical quality would be determined according to their tolerance data; (2) Discussing the relationship between the aberrations and the misalignment of reference lens; (3) Building the mathematical model for the misalignment optical system, and then calculating the misalignment value by the alignment software compiled on ZEMAX and MATLAB platforms; (4) Experiments are made to examine the computer-aided alignment method. The theoretical and experimental data and plots are given in the paper.