Apparatus for three-dimensionally displaying object and method of doing the same

Abstract

There is provided an apparatus for three-dimensionally displaying an object, including (a) image-displaying devices which display images at an observer's eyes, (b) a beam scanner, (c) an area-identifier which detects a direction on which an observer turns at least one eye to thereby identify a display area at which the observer gazes, (d) a calculator which calculates, based on an image signal including parallax, a three-dimensional positional relation between the observer and an object to be observed, existing in the display area, (e) an image-position controller which controls positions of images so that the object is displayed in the display area at locations on lines connecting the object located at a three-dimensional position calculated by the calculator to centers of pupils of the observer, and (f) a convergence generator which generates a difference between first timing at which the beam scanner is driven and second timing at which images start being displayed in the image-displaying devices, in accordance with a degree of convergence, and varies positions of images to be displayed in the image-displaying devices, in accordance with the thus generated convergence. The apparatus can accomplish compatibility in parallax and convergence to thereby reduce fatigue in an observer's eyes.