Design of the opto-mechatronic system for the LED projector

This paper propose a possible mechanism design of LED projector. The opto-mechatronic system was studied. The analytical scheme of optical path was described in detail. As compared with the other light sources, laser light usually has many advantages: higher brightness, higher directionality, pure monochromatism, and higher coherence. However, the LED device does not have these advantages. Therefore, this paper develop the mechanism to project LED light to target screen. Biconvex lens and hexahedral mirror are used to focus the LED light into one spot on the target screen. Brushless DC motor is used to rotate the mirror to provide the required projection.