👉 Pseudoptics is a concept in optics that describes an optical system where light waves are reflected or refracted at a certain angle. It's named after the pseudorotation effect, which occurs when light waves are refracted by the surface of a medium. This phenomenon is crucial in many fields such as crystallography and engineering. In pseudoptics, the wave fronts that are formed around a mirror are not parallel to each other but instead rotate about a point on the mirror surface.