Abstract: A head-mounted display apparatus includes an image display device for displaying images, a first flat reflection mirror for reflecting light from the image display device, a first and a second lenses for controlling a size of the image from the first flat reflection mirror, a first beam splitter for partially transmitting and partially reflecting the light passing through the first and the second lenses, thereby splitting two light beams, a second flat reflection mirror for reflecting the transmitted light beam, a second beam splitter for partially transmitting and partially reflecting the light beam from the second flat reflection mirror, a first reflection mirror for reflecting the light beam reflected by the second beam splitter to one eye of a viewer, a third flat reflection mirror for reflecting the light beam reflected by the first beam splitter, a fourth flat reflection mirror for reflecting the light beam from the third flat reflection mirror, a third beam splitter for partially transmitting and parti

Abstract: A head-mounted display apparatus comprises an image display device, a beam splitter for partially transmitting and partially reflecting light from the image display device, a reflection mirror, and a first and a second magnifying lenses. The image display device is disposed in front of a right eye of an observer and displays images on the basis of video signals from a video signal source. The beam splitter, disposed between the image display device and the right eye, splits the light from the image display device into two light beams. The reflection mirror, disposed in front of a left eye, reflects the light from the beam splitter to the left eye. The first and the second magnifying lenses are respectively disposed between the beam splitter and the right eye and between the reflection mirror and the left eye, thereby enabling the observer to see enlarged virtual image formed at a certain distance from the eyes.

Abstract: A head-mounted display apparatus comprises an image display device for displaying images, a first beam splitter for partially transmitting and partially reflecting light from the image display device, a second beam splitter for partially transmitting and partially reflecting the light transmitted by the first beam splitter, and a first and a second concave reflection mirrors. The image display device, disposed on the right side of an observer, displays images on the basis of video signals from a video signal source. The first and the second beam splitters are disposed in front of the right and the left eyes of the observer, respectively. The first and the second concave reflection mirrors are disposed on the reflection side of the first and the second beam splitter, and reflect the light therefrom to the right and the left eyes of the observer, respectively.