Patent ID: 7839553

Claim:
A light source module, for being applied to a scanning projection apparatus, comprising: a plurality of point light sources, wherein each of the point light sources is capable of providing a color light beam, and the color light beams are combined into a combined light beam, the point light sources comprises: a first point light source, capable of providing a first color light beam; a second point light source, capable of providing a second color light beam; and a third point light source, capable of providing a third color light beam; a light combination unit, capable of combining the first color light beam, the second color light beam, and the third color light beam into the combined light beam; and a light blocking unit, disposed adjacent to a transmission path of the first color light beam, and capable of being inserted into the transmission path of the first color light beam at a fixed frequency to block a portion of the first color light beam, wherein the light blocking unit comprises: at least one light blocking element; and at least one actuator, connected to the light blocking element, for being in control of inserting the light blocking element into or moving the light blocking element away from a transmission path of the first color light beam at the fixed frequency to block a portion of the first color light beam, wherein the light blocking element has a moving stroke for being inserted into and moved away from the transmission path of the first color light beam, the fixed frequency refers to an image refresh frequency multiplied by an image resolution, distance of the moving stroke is capable of being adjusted at the fixed frequency for adjusting the proportion of the first color light beam blocked by the light blocking unit, and the second color light beam and the third color light beam are emitted to the light combination unit directly without being blocked.