Fluorescent wheel device and light source system

Abstract

The invention relates to a fluorescent wheel device, which comprises a fluorescent wheel substrate and multi-colored fluorescent powder, wherein the multi-colored fluorescent powder is sectionally attached to regions, irradiated by laser, of the fluorescent wheel substrate, and comprises blue fluorescent powder which emits blue excited light under the excitation of the laser. The invention further relates to a light source system comprising the fluorescent wheel device. The fluorescent wheel device and the light source system adopt a method of exciting all RGBY color light by using the fluorescent powder, do not need to design a special light path and structure for the blue light, so that the system is simple; and laser-free output can be realized, thereby achieving the purposes of being environmentally friendly and harmless.

Description

technical field [0001] The invention relates to an optical system, in particular to a fluorescent wheel device and a light source system. Background technique [0002] The light source of laser projectors currently uses blue light for excitation, such as figure 1 As shown, the light excited by the blue laser light source is converged onto the fluorescent wheel through the lens group, etc., and the fluorescent wheel is excited to produce red R, green G, and yellow Y colors of light, and the R, G, and Y colors of light pass through the lens group, color wheel, etc. focus to the entrance of the light pipe; the blue light of the laser itself passes through the gap on the fluorescent wheel or a transparent glass sheet, and then is reflected by the reflector, and finally focuses on the entrance of the light pipe and the color of R, G, and Y. Photosynthetic light. [0003] At present, R, G and Y colors of light are all excited by phosphors, and blue light is obtained by using an ...

AI Technical Summary

Problems solved by technology

Among them, the fluorescent wheel structure using AR film and reflective material has the following defects: the polarization characteristics of blue light laser cannot be eliminated, and the problem of blue light bias cannot be solved

[0005] 1. In terms of design, the light source needs to split and combine light, so the system is more complex, the composition structure is also relatively large, and additional adjustments are required for white uniformity

[0006] 2. The synthetic light contains laser components, which have slight damage to human eyes. At the same time, the high coherence of blue lasers leads to serious speckle effects, which affects image quality and perception

[0007] 3. At present, most of the blue laser bands used by laser projectors are around 440nm to 460nm. The color of this blue light is purple blue, which leads to the color distortion of the current laser projectors on many screens.

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