1. Vogeley JH, Vogeley AW. Method and apparatus for interacting with a computer generated projected image. US Patent No. 5,235,363.
2. Hauck L. Computer input system and method of using same. US Patent No. 5,515,079.
3. Cheng K, Pulo K. Direct interaction with large-scale display systems using infrared laser tracking devices. Australasian Symosium on Information and Visualisation, Adelaide, Australia, 2003.
4. Kirstein C, Muller H. Interaction with a projection screen using a camera-tracked laser pointer. In: Proceedings of IEEE multimedia modeling, 1998. p. 191–2.
5. Olsen DR, Nielsen T. Laser pointer interaction. In: Proceedings of the SIGCHI conference on human factors in computing systems, Seattle, Washington, USA, 2001.