Abstract

The image quality produced by an array of radial gradient-index lenses is generally calculated using a geometrical model. In some cases, the performance of individual rods is limited primarily by diffraction. The ideal image formed by an array of aberration-free gradient-index rods is examined. An explanation of the theoretical model is given and graphical data are presented for point spread, line spread, and modulation transfer functions. Several field points are studied and the effect of changing the rod spacing is shown.

© 1985 Optical Society of America