Experimental Study of Image-Forming Lens Based on Diffractive Lenses, Correcting Aberrations

The simplest lens, consisting of the refractive and diffractive lenses, in which the main geometric aberrations are compensated due to the shape of the diffractive lens, is considered. It is considered the way of calculation of this system based on minimization of a chromatic aberration. The results of the experiment, in which a frequency–contrast characteristic of a hybrid lens was directly determined, are presented.