Home – Home – Jornals – Avtometriya 2017 number 5

The problems and the possibility of using diffractive elements with a sawtooth relief-phase microstructure in imaging optical systems are analyzed. Particular attention is paid to minimizing the negative adverse effect of diffraction orders on the quality of the image formed by an optical system with a diffractive element due to the transition from single-layer microstructures to structure containing several layers and reliefs. Requirements to the design parameters of the microstructure and operating conditions of the diffractive element in the optical system are formulated that ensure the absence of the visually observable halo due to adverse diffraction orders. A number of examples have shown that incorporation of a diffractive element in a plastic-lens imaging optical system corrects chromatic aberration and provides high resolution in the generated image.