WAVEGUIDE FOR OPTICAL MULTI-DIMENSIONAL INPUT UNIT HAVING UNIFORM RECEIVED LIGHT INTENSITY

摘要

PROBLEM TO BE SOLVED: To provide a waveguide used for receiving light of a multi-input device through optical space transmission that can obtain a difference from a wide visual field and a small received light intensity. SOLUTION: The waveguides to enhance the light receiving sensitivity are combined like a honeycomb or compound eyes of insects to obtain a required visual field angle and also to change a light collection gain through the adjustment of an aperture area of each waveguide thereby decreasing received light intensity differences caused by remote and near distances depending on a direction of a light emission source.