Patent ID: 8113692

Claim:
A light source module for generating polarized light, comprising: a light emitting element for generating a light ray; an optical element having a light splitting face and a reflection face, wherein the light splitting face receives the light ray, an incident angle provided for the light ray to be incident to the light splitting face is within a range from a Brewster's Angle (θ B )−15 degrees to θ B +15 degrees, the light ray is divided into a refraction light and a reflection light after the light ray is irradiated to the light splitting face, the reflection face reflects the refraction light, and the reflection face is substantially perpendicular to a path of the refraction light; and a reflector disposed on one side of the light emitting element, for reflecting the light ray towards the optical element, wherein the optical element is a strip element, a first plane passing through the light emitting element is perpendicular to a major axis of the strip element, an intersection line between the light splitting face and the first plane is an incident curve, an intersection line between the reflection face and the first plane is a reflection curve, an incident angle provided for the light ray to be incident to the incident curve is within a range from θ B −15 degrees to θ B +15 degrees, and the reflection curve is substantially perpendicular to a path of the refraction light.