FULL COLOR HOLOGRAPHIC OPTICAL ELEMENT AND METHOD FOR FABRICATING THE SAME USING PHOTOPOLYMER WAVEGUIDE-TYPE HEAD MOUNTED DISPLAY

摘要

The present invention relates to a full color holographic optical element using a photopolymer, a method of manufacturing the same, and a display device. The display includes a microdisplay for outputting a source image, a collimator lens for collimating the microdisplay, Both sides of a light guide plate on which an incident side and an emission side of light are tapered and a light guide plate (glass plate) on which Couple in Optics and Couple out Optics are formed are tapered; For the wedge-shaped first prism, the photopolymer recording angle of incidence ( ), The object beam is incident on the port polymer, and the photopolymer recording angle of incidence with respect to the wedge- ), The reference beam is incident on the port polymer, and the photopolymer recording incident angle ( ) And photopolymer recording angle of incidence ( ) Is the total internal reflection angle of the light guide plate and is sequentially irradiated by adjusting the order of R (Red), G (Green), and B (Blue) to produce a full color holographic optical device. According to the present invention, a display device for an HMD formed of a waveguide type can reduce a light amount loss while ensuring a diffraction efficiency, and can reduce the thickness of a light guide plate, thereby making it easy to produce a spectacle type display with no resistance to wear.