The possibility of multiple reductions of the distortion of high-resolution monochromats that consist of diffractive and radial gradient-index lenses is shown. The desirable effect is achieved by mutual compensation of various order members. Design parameters and the field performances of objectives that confirm the effectiveness of a method, are presented.
© 2005 Optical Society of America
Evgeniy G. Ezhov, Grigoriy I. Greisukh, and Sergei A. Stepanov, "Reduction of the distortion of diffractive-gradient-index high-resolution objectives," Appl. Opt. 44, 512-518 (2005)