The efficiency of a Lyot stop in reducing diffraction effects in a simple optical system is analyzed. The transformation rules of Fourier optics are used to follow the optical signal through the system. This analysis reduces the problem to the evaluation of a two-dimensional integral. An approximate analytic technique for evaluating this integral is presented. The final result is a simple formula for calculating the diffraction-reduction efficiency of the Lyot stop. A comparison of this work with other published work is also presented.
© 1987 Optical Society of America
Original Manuscript: March 17, 1986
Manuscript Accepted: March 26, 1987
Published: August 1, 1987
B. R. Johnson, "Analysis of diffraction reduction by use of a Lyot stop," J. Opt. Soc. Am. A 4, 1376-1384 (1987)