Patent ID: 8289604
Filing Date: 2012-10-16
Classification: G02B

Abstract:
1. An optical path control device, comprising: a driving device, outputting a rotating power; a fixed reflective mirror, fixed on a first position, wherein an incident light is reflected on the fixed reflective mirror; a rotatable reflective mirror, which is flat, comprising a surface, wherein the rotatable reflective mirror is driven by the driving device and rotated on a fixed axle, the surface of the rotatable reflective mirror is perpendicular to the fixed axle, the fixed axle is disposed on a second position, a rotating path of the rotatable reflective mirror passes through the incident light reflected on the fixed reflective mirror, and a normal line of an incident point of the rotatable reflective mirror where the incident light enters, and a normal line of an incident point of the fixed reflective mirror where the incident light enters generates a predetermined included angle.