ULTRA-THIN OPTICAL INPUT DEVICE

摘要

PURPOSE: An ultra thin optical input device is provided to apply an ultra input device to various portable devices by reducing the thickness of an optical input device. CONSTITUTION: An optical function unit is inserted inside a cover and includes an optical filter(122) which selectively penetrates light according to wavelength. A lens structure(130) penetrates light which penetrating the optical filter and performs a light condensing function. A light blocking unit(140) blocks the light which penetrates the lens structure. The circuit board includes an optical sensor(152) sensing the light.