Holographic optical element

Patent Pending H.O.E stands for Holographic optical element and it is a hologram that consists of a diffraction pattern rendered as a surface relief, or a thin film containing an index modulation throughout the thickness of the film. For our purposes, holograms can be divided into two categories: reflection holograms, in which incident and diffracted light are on the same side of the HOE, and transmission holograms, in which incident and diffracted light are on opposite sides.