作者: David S. Graham , Daniel A. Francis
DOI:
关键词: Light detector 、 User input 、 Computer science 、 Computer hardware 、 Light source 、 Grid
摘要: A user input device for an electronic is disclosed. The provides positional information using a grid of light. light produced from source and waveguides. also received processed waveguides detector. Optionally, optics may be used to enhance the operation device. particularly suited use as computer system or like.