Patent ID: 8451111

Claim:
An image display apparatus comprising: an image generation unit configured to generate a plurality of images to indicate a route to an observer; and a projector configured to project a light beam to form the plurality of images onto a first eye of the observer by reflecting at a reflection member so that the plurality of images is superimposed on positions along the route in a background observed through the reflection member, the projector configured not to project the light beam onto a second eye of the observer different from the first eye to eliminate an effect of binocular disparity, an image of the background being incident on the first and second eyes, the projector including a projection range controller configured to control a divergence angle of the light beam to project the light beam onto the first eye of the observer and not to project the light beam onto the second eye, wherein the projector projects the light beam to form the plurality of images at a single position, the image generation unit generates the plurality of images to be arranged along the route when observed by the first eye of the observer and changes at least one of a shape and a direction of the plurality of images along the route, and the image generation unit generates the plurality of images with different figure sizes being sequentially decreased in a direction away from a position of the observer so that perceived positions of the plurality of images are sequentially located in the direction away from the position of the observer along the route when the plurality of images are observed by the first eye of the observer.