Phosphor color wheel and its applicable light source system

Abstract

The invention relates to a fluorescent agent color wheel and a light source system used therefor. The fluorescent agent color wheel at least includes glass, a first fluorescent agent and a first filter. Wherein the glass has a first section, the first fluorescent agent is coated on the first section, and is configured to convert the light of the first wavelength band into light of the second wavelength band, and the first optical filter is adjacent to the first area of ​​the glass section, used to filter part of the first waveband light and the first light beam of the second waveband light, so that the second light beam of the second waveband light passes through the first filter and is emitted, the second waveband light is yellow light, and the first The fluorescent agent is a yellow fluorescent agent, and the first filter is a red light filter, so as to effectively reduce the manufacturing cost, increase the brightness of the red light and increase the brightness of the red light with the increase of the driving current, thereby improving the overall brightness of the light source system and Improve image quality, etc.

Description

technical field [0001] The invention relates to a color wheel, in particular to a fluorescent agent color wheel and an applicable light source system. Background technique [0002] In recent years, various projectors have been widely used in homes, schools, or various business occasions for amplifying and displaying an image signal provided by an image signal source on a screen. In order to save power consumption and reduce the size of the device, the current projector's light source system (Illumination System) has used solid-state light-emitting elements, such as light-emitting diodes or laser elements, to replace traditional high-density gas discharge lamps (HIDLamp) or high-pressure mercury lamps. [0003] The light source system of the projector needs to be able to emit three primary colors of light such as red light, green light, and blue light (R, G, B). However, the luminous efficiency of solid-state light-emitting elements is generally blue. The luminous efficiency ...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a fluorescent agent color wheel and its applicable light source system to solve the problem of increased manufacturing cost, red brightness or overall The luminance of white light is too low, and the luminance of red light attenuates when the driving current of the blue laser is large, which will affect the color performance and poor image quality.

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