ANGLE DETECTION SYSTEM, POSITION DETECTION SYSTEM, METHOD FOR DETECTING ANGLE, AND METHOD FOR DETECTING POSITION

摘要

To allow the detection of the direction of an infrared transmission source by an easier calculation.SOLUTION: An angle detection system includes: a distribution formation unit for receiving an infrared ray and making the infrared ray reach a light receiving surface in an illuminance distribution corresponding to the incident angle of the infrared ray; a sensor for outputting a sensor signal according to the distance between the illuminance gravity position of the infrared ray in the light receiving surface and a terminal from the terminal; and an angle detection unit for detecting the incident angle based on the sensor signal.SELECTED DRAWING: Figure 4