1
Chi Mun Ho, Chin Hin Oon, Kean Loo Kah: Optical generic switch panel. Avago Technologies ECBM IP, December 18, 2007: US07310090 (14 worldwide citation)

A switch panel having a touch plate, image generator, and imaging system. The touch plate includes an optically transparent layer having first and second sides. The optically transparent layer having an index of refraction greater than that of air. A light source generates a light signal that is ref ...


2
Chi Mun Ho, Chin Hin Oon, Kean Loo Kah: Optical generic switch panel. Agilent Technologies, September 29, 2005: US20050212774-A1

A switch panel having a touch plate, image generator, and imaging system. The touch plate includes an optically transparent layer having first and second sides. The optically transparent layer having an index of refraction greater than that of air. A light source generates a light signal that is ref ...