DESIGN OF NEW HYBRID OPTICAL SYSTEM OF LED CAP LAMP

摘要

A new hybrid optical system of LED cap lamp was designed for demand of luminous intensity distribution ， which is made up of freeform refractor and freeform reflector. Simulation results show that the optical system has a better condensing performance than others, and the center illuminance of light spot is up to the requirement of national standards. The illumination uniformity of the optical system was greater than 0.8, and the radius of light spot of this optical system is125 mm. The simulation results confirm that the cap lamp meets the requirements of mine.