Head-mounted type image display system

摘要

A head-mounted type image display system includes right and left image display devices, first and second projection optical systems projecting right and left images displayed on the first and second image display devices onto right and and left eyes of a user as virtual images, a movement detection device for detecting a direction and an amount of up and down or right and left or back and forth movement of the user's head to derive a displacement signal, and a driving device responding to the displacement signal to move the first and second image display devices in a direction opposite to the detected direction of the movement of the user's head by an amount which is 0.8 times to 1.2 times of the detected amount of the movement of the user's head such that virtual images can be perceived by the user to be remained substantially stationary within the space.