Abstract: A system with automatic positioning controls for the holographic display of three-dimensional objects interacting in real time with objects of the real world. The person observing the screen (18) has the sensation that the objects are real, which is achieved thanks to a real time perspective correction system (1). The system is used in particular to simulate bowling pins (9). It is positioned on the lane required by means of a dolly (6). The system determines a relation between the information received from the sensors: video cameras (1) (3), dimensions (26), weight (14) (27) and the mathematical simulation models. When the ball is bowled, its physical features are measured and when it hits the pin deck, some holographic pins are displayed on the screen (19). The screen holographically arranges the projected objects over what the bowler (18) sees behind the screen (19).

Abstract: A miniature bowling alley game comprising a lane surface adjusted to such a height where at one end an individual could comfortably roll a miniature bowling ball towards the other end which contains a plurality of lamps backlighting a translucent panel which represents bowling pins. The game features a microcontroller and sensors which detect the speed and angle of the bowling ball as it enters the area of the pins; actual sound of the pins falling; an information panel; and more than 50 spares that can be set up for practice bowling.