Fluorescent powder color wheel and projector applying same

Abstract

The invention provides a fluorescent powder color wheel and a projector applying the same. The fluorescent powder color wheel comprises a substrate, fluorescent parts and condensation parts, wherein the fluorescent parts are annularly arranged on the substrate; and the condensation parts are adjacent to the fluorescent parts and are used for converging the light generated after excitation of the fluorescent parts. The light source utilization efficiency of the whole projector system can be improved by the fluorescent powder color wheel provided by the invention.

Description

technical field [0001] The present invention relates to a fluorescent pink wheel, in particular to a fluorescent pink wheel that can improve light-receiving efficiency and a projector using the fluorescent pink wheel. Background technique [0002] Nowadays, more and more projectors use LED (light Emitting Diode, light emitting diode) as a light source, one of which is to use an excitation light source to excite phosphors to emit light of different wavelengths such as red, green or blue as a light source. The color wheel used in this kind of projector is generally coated with phosphor powder that can be excited by LED to emit red, green or blue light on the annular area. When the color wheel is working, the LED light illuminates the fluorescent pink wheel to excite red, green and blue light. , the projector uses the excited light to work. [0003] See Figure 1A and Figure 1B , Figure 1A and Figure 1B is a schematic structural diagram of a traditional reflective fluores...

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned prior art, the light generated by the excitation of the fluorescent part will be scattered at a large angle, resulting in poor light collection efficiency in the entire projection optical system

Images