Examination of the developed scanning system for red-green-blue laser projector with a feedback control

The galvanometric scanning system is widely used in laser material processing and laser shows. The scanner is a broadband component, damped sufficiently to operate over a wide range of frequencies, from zero to a higher value related to its mechanical resonance. Developing a galvanometric scanner is an important issue in the design of optical systems. This study focuses on the development of the scanning system for a laser projector using red, green, and blue diode lasers. The performance of the laser projector, which consists of the scanning control system, color control system, and position detector, is also discussed.