| 摘要 |
An optical module for improving sensitivity of a mouse pen is provided to realize high recognition efficiency by rotating an object mirror according to a current pen state presumed from tilt after measuring the tile with a 3D(Dimensional) acceleration sensor. An image sensor(130) obtains digital image data inside of a case(100). A light source(110) lights a bottom side(200). An ocular mirror(120) has a hole for passing light(300) of the light source and a reflective surface for sending the light reflected from the bottom side to the image sensor. The object lens(140) has a function for adjusting an angle by centering on a rotation shaft(145) to adjust the angle between the light source and the bottom side. A collection lens(125) collects the reflected light(301). The acceleration sensor(150) provides tilt data to rotate the object mirror by measuring the tilt of the case. |
