Optical systems of holographic collimator sights

Abstract

This paper discusses the layouts of the optical systems that have been published for holographic collimator sights. Special attention is paid to the layout of a sight based on the use of a multifunction holographic optical element of a relief–phase reflective holographic grating constructed on a concave spherical surface. The requirements imposed on the spatial carrier frequencies of the grating and the hologram that forms the image of a stationary sighting mark are formulated. The results of a study of a laboratory prototype of a sight are presented. High transmittance of the sight, exceeding 85% in the visible region of the spectrum, has been achieved in the target-observation channel.