Laser-Excited Phosphor Light Recycling using Parabolic Reflectors

摘要

This paper describes a patent pending system in which the configuration, utilizing a single parabolic reflector, could allowhigh power reflective phosphor mode of operation, accommodate multiple laser diodes, and recycles the high angle lightfor increased output with low NA. In addition, the reflective phosphor and the laser diodes are both mounted on the sameheat sink allowing a simple light module design with low cost. The parabolic reflector functions as the coupling opticsbetween the laser diodes and the phosphor plate and as part of the recycling optics. With an addition of another parabolicreflector, the system produces a focused output suitable for coupling light into a fiber optic or cable. Other related recyclingsystems are also described, which will be useful for various applications with different requirements.