Moving image projection system, video projection device, optical element for displaying optical diffraction, helmet, and image projection method

摘要

It is an object of the present invention to provide a video projection system for a moving body in which the head mounting portion is made compact and / or lightened.This technique is an image projection apparatus (101) attached to a moving object, and an image display optical diffraction optical element (103) disposed in front of a person moving with the moving object and diffracted by the image display light projected from the video projector (101) to reach the human eye, and A moving image projection system (100) is provided.This technique also provides a component of the video projection system and a video projection method in the video projection system.