The present invention relates to an image input device including a substrate, a light sensor, a light emitter, and a light guide. The light sensor, the light emitter, and the light guide are provided on the substrate. The light emitted from the light emitter is guided to a position above the light sensor...http://www.google.com/patents/US7630523?utm_source=gb-gplus-sharePatent US7630523 - Image input device that generates an image of an object
