Optical Design Assignment 1

Use the triplet lens from Kidger, page 74-75 for this assignment.

  1. Generate a trigonometric raytrace at the edge of the f/4 aperture. Find the marginal ray error at paraxial focus and the focal shift to the marginal focus.

  2. Use OSLO EDU to calculate the Seidel wavefront aberrations. Check the match to the MATLAB analysis

  3. Calculate and plot an axial fan of rays using the trigonmetric raytrace in MATLAB. Compare to OSLO.

  4. Fit the ray fan data (at least 51) rays to polynomials of order 3, 5, 7, 9, and 11. List the coefficients. For each order, compare the fitted ray fan data to the actual ray fan.

  5. Generate on-axis OPD ray fan data using OSLO. Import the results into MATLAB. Generate tables of Taylor (Seidel), Zernike, and Chebyshev wavefront coefficients.

  6. Generate MATLAB ray fans for 18° and 22° half-fields of view. Compare to OSLO.

  7. Use polyfit with the lowest order polynomials that “adequately” fits the rayfan data above. Show the fitted ray fan and the actual rayfan.

  8. Integrate the fitted full-field ray fan and find W040 (4th order spherical aberration) and W131 (4th order coma). Compare to the Seidel aberration coefficients.

Maintained by John Loomis, last updated 13 Jan 2005