Patent ID: 7002532

Claim:
A three-dimensional representation method, which generates a three-dimensional image by displaying two-dimensional images on each of a plurality of image planes at desired brightness levels, an object being presented as the two-dimensional images displayed on the image planes, and within an after image time of a human eye, the plurality of image planes being located at different depth positions, the three-dimensional representation method comprising the steps of: controlling a polarization direction of display light of the two-dimensional images; and passing the display light through an optical system that has different focusing positions according to the polarization direction of the passing display light so that the display light of the two-dimensional images is focused on the plurality of image planes located at different depth positions to display the two-dimensional images on the plurality of image planes located at different depth positions, wherein in synchronism with the successive switching of the polarization direction of the display light of the two-dimensional images, the brightness levels of the display light of the two-dimensional images are changed to the desired brightness levels.