Optical mouse has a light source and a light sensor mounted in slanting elements, the surfaces of which are arranged at an obtuse angle, so that reflected modulated light is directly detected by the sensor

摘要

Module unit (2) for an optical mouse has a first slanting element (222) containing an illumination element (4) and a second slanting element (224) in which a light sensor (5) is contained. The sloping surfaces of the two slanting elements form an obtuse angle. Light from the illumination element is reflected and modulated by a reflection plane before being directly received by the light sensor.