Augmented & mixed reality (AR/MR) refers to interactive experiences of a real-world environment, with overlaid computer-generated information. In more advanced cases, the interactive experiences also interact with the real-world environment. To create full AR/MR experiences, it is necessary to use a head-mounted display or glasses with integrated and advanced see-through displays that have depth mapping sensors to map the real-world environment. NILT offers masters and sub-masters for generating see-through displays, made of surface relief waveguides. More, we have optical elements, components, and modules for depth mapping, realized by advanced diffractive optical technologies.