LENS AND OPTICAL NAVIGATION MODULE HAVING THE SAME

摘要

PURPOSE: An optical navigation module and an optical navigation module lens are provided to improve the better assembly and freedom degrees of design by using a lens including a light transmitting unit and a light receiving unit. CONSTITUTION: A lens includes a light transmitting unit(131) and a light receiving unit(132) for collecting and bending light discharged from an LED(150). A window(110) transmits light of the LED and the light is reflected by a subject. A sensor(160) receives the reflected light and detects the light to output a signal. A light transmitting unit includes a fresnel lens bending the light of the LED to deliver the same to the window. The light receiving unit is formed into an inclined shape to collect the light reflected from the window and to deliver the light to the sensor.