Patent ID: 11966033
Assignee: nan
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A system for generating white light in a laser phosphor projector, the system comprising:
a) a plate having a first side, a second side opposite the first side, and a hole therethrough;
b) a first plurality of laser diodes arranged on the first side of the plate, the plurality of laser diodes configured to emit blue light rays;
c) a concave reflector having a focal point, the concave reflector positioned to receive the blue light rays emitted from the first plurality of laser diodes and reflect the blue light rays toward the focal point; and
d) a rotatable phosphor wheel having a phosphor region, the phosphor region comprising cerium-doped yttrium aluminum garnet (YAG) to receive the blue light ray and emit broad band light rays with a peak in a yellow-green range, wherein when the phosphor region is hit with the blue light rays, the broad band light rays are emitted;
e) a collection lens to collect the broad band light rays; and
f) optical devices to direct the broad band light rays with a second set of blue light rays to create white light.