Projecting the parallel rays, to the image grant manner and the image

摘要

PROBLEM TO BE SOLVED: To provide an image applying method and image applying device capable of applying a clear image to an eye diseased person. SOLUTION: An image projector device 11 is provided with a laser light source 11a, a collimator lens 11b for making light emitted from the laser light source 11a to be parallel light, a liquid crystal display panel 11c as a spatial light modulating element, a spatial filter 11d and a hologram converging element 11e as a converging element. When the focal distance f of the hologram converging element 11e is taken as f, the hologram converging element 11e is disposed at a distance f from the center of an observer's pupil, and the observer A observes the image by Maxwell view. Even in the case where the diseased part Ad is existent in the substantially center of retina of the eye Ae, the optical axis of projection is set obliquely to the central axis of the eye ball, whereby image light is guided to the non-diseased part outside the central area of the retina so that the eye diseased person having the diseased part Ad can clearly see the image.