Abstract: The present invention relates to a steering wheel control apparatus for a television game machine, that is used for a car race game, etc., that is structured compactly and simply, and that can be operated while the apparatus is fixed at an optimal position. The feature of the steering wheel control apparatus is that a plurality of button switches transmitting game control signal are provided on a surface of upper posts between a center portion of a steering wheel and hand grips on each side thereof, within a range to which a thumbs of player's hand holding the grip without departing from the grips. Further, at the reverse of the center portion of the steering wheel, shift levers having operation points near the respective grips are provided. The side face of a base casing rotatably supporting the steering wheel is extended perpendicularly and to the front and to the rear so that the player can securely hold the base case between the thighs.

Abstract: A head mounted display comprises a transmission-type display device for displaying prescribed images while transmitting outside light, a head mounted device for supporting the display device in front of the face, and a visor for reducing the quantity of outside light incident on the display device. The visor is installed in such a way that it can move between a position in which the outside front surface of the display device is covered and a position in which this surface is open. A living space or other external environment can be perceived without any impediment to viewing even when the images projected on the image display mechanism are being viewed.

Abstract: A head mounted display comprising: a display device 2 at the front; a front frame 12 surrounding the forehead; a back frame 14 surrounding the back portion of the head; connecting devices 30A and 30B for connecting the front frame 12 and the back frame 14 in a manner freely movable toward the back and front of the head; belts 16A and 16B placed on the inner surface of both the front frame 12 and the back frame 14 and around the temples; and a belt fastening and loosening device 20 for fastening the belts 16A and 16B and for releasing the fastened belts.

Abstract: A head-mounted image display comprising a housing for covering both the eyes of the user, a support for mounting the housing on the head of the user, an image light emitting unit provided at a predetermined position in the housing for emitting image light, a pair of right and left convex lenses provided at both the eyes in the housing for enlarging the image produced by the image light emitting means, and an optical system provided within the housing for guiding the image appearing on the image light emitting unit to the pair of right and left convex lenses.

Abstract: A head-mounted image display comprising a housing for covering both the eyes of the user, a support for mounting the housing on the head of the user, an image light emitting unit provided at a predetermined position in the housing for emitting image light, a pair of right and left convex lenses provided at both the eyes in the housing for enlarging the image produced by the image light emitting unit, and an optical system provided within the housing for guiding the image appearing on the image light emitting unit to the pair of right and left convex lenses.