Abstract: An improved head-mounted visual display apparatus that may find particular use in a virtual reality system. The apparatus includes a shell that encases a pair of visual displays and is mounted to a headband, which adjusts to the user's head, with a mounting device that allows the shell to be slid towards and away from the user's face. The mounting device includes a mounting bracket that attaches to the headband and a support member that slides across the mounting bracket. The support member is attached to the shell allowing the shell to be moved towards and away from the headband. Additionally, the support member allows for the attachment of video display units.

Abstract: A head-mounted visual display apparatus for displaying an image generated by an image generator to a wearer of the apparatus. The visual display apparatus comprises a helmet (10) comprising a shell and a headband (66) engaged to an interior surface of the shell; an adjustment mechanism (90) mounted to an exterior surface of the helmet for adjusting the size of the headband; and a video display (18,20) housed within the helmet and connected to the image generator for displaying the image. In a preferred embodiment the adjustment mechanism includes a knob (90) mounted on an exterior surface of the shell and connected to the headband by a rotatable shaft (99) disposed through the shell between the knob and the headband.