Pocket-sized DLP projector module design with high power LED illumination

The paper proposes an optical design for a miniature DLP projector characterized by a high-power LED source and lens with Digital Signal Processing (Digital Signal Processing). Uniformity, brightness and module size play a significant part in the DLP projector module and, consequently, two methods are proposed in this research. First, a "U-Type integrator" working with high power LED not only causes rays to make a "U-Turn" but also controls output uniformity well. Second, a projection lens with DSP design efficiently reduces the overall length of the actual lens. The whole design is simulated and then illustrated on the following page. Finally, the optimization work is done by Taguchi methods. It is concluded that the newly developed design achieves good results in performance and compactness in the size of the module.