Fluorescent wheel and fluorescent conversion system

A fluorescent wheel and fluorescent technology, applied in the field of fluorescent conversion, can solve the problems of large size and complex structure, and achieve the effect of reducing the degree of coherence, simplifying the structure, and benefiting the overall size

Active Publication Date: 2016-05-04
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the embodiments of the present invention is to provide a fluorescent wheel and a fluorescent conversion system for solving the problems of complex structure and large size of the existing fluorescent conversion system

Method used

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  • Fluorescent wheel and fluorescent conversion system
  • Fluorescent wheel and fluorescent conversion system
  • Fluorescent wheel and fluorescent conversion system

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Experimental program
Comparison scheme
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Embodiment 1

[0048] like figure 2 As shown, the embodiment of the present invention provides a fluorescent wheel 2 for receiving laser irradiation, including a phosphor area 21 and a laser scattering area 22 located on a reflective substrate 20; wherein: the phosphor area 21 is used for Fluorescence is emitted under excitation and reflected; the laser scattering area 22 is used to scatter the incident laser light and reflect it;

[0049] Here, the reflective substrate 20 refers to a substrate having a reflective surface.

[0050]Wherein, the fluorescent light generated by the fluorescent powder area 21 diverges in all directions, and the fluorescent light diverging relative to the surface of the reflective substrate 20 is reflected, and then all the fluorescent light is emitted from the front of the fluorescent wheel 2 along an emission angle range of about 180 degrees.

[0051] In the embodiment of the present invention, because the fluorescent wheel 2 can reflect the incident laser lig...

Embodiment 2

[0059] An embodiment of the present invention provides a fluorescence conversion system, such as Figure 5 As shown, it includes an excitation light source 3, a fluorescent wheel 2 and a light collecting device 4; wherein:

[0060] The fluorescent wheel 2 is used to accept the irradiation of the laser emitted by the excitation light source, including a phosphor area 21 and a laser scattering area 22 located on the reflective substrate 20; wherein: the phosphor area 21 is used to emit fluorescence under the excitation of the incident laser light and Reflected; the laser scattering area 22 is used to scatter the incident laser light and reflect it;

[0061] The light collecting device 4 is used for receiving the fluorescent light reflected by the fluorescent wheel 2 and the laser light and then mixing and emitting it.

[0062] Figure 5 Among the light beams emitted by the light collecting device 4 shown in , the dotted line represents the emitted fluorescent light, and the so...

Embodiment 3

[0077] The fluorescent conversion system provided in this embodiment, such as Figure 7 As shown, in addition to the excitation light source 3, the fluorescent wheel 2 and the light collecting device 4, the fluorescent conversion system also includes a color filter wheel 5;

[0078] color filter wheel 5, such as Figure 8 As shown, it includes a fluorescence filter area 51 and a laser transmission area 52; wherein the fluorescence filter area 51 is used to filter the fluorescence emitted by the light collection device; the laser transmission area 52 is used to transmit the laser light emitted by the light collection device.

[0079] In this embodiment, the fluorescent light and laser light filtered by the color wheel 5 are the final required light source.

[0080] implementation, such as Figure 7 As shown, the fluorescent wheel 2 and the color filter wheel 5 can be arranged coaxially. In this way, the fluorescent wheel 2 and the color filter wheel 5 can be controlled at th...

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PUM

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Abstract

The embodiment of the invention discloses a fluorescent wheel and fluorescent conversion system. The fluorescent wheel is used for receiving irradiation of a laser and comprises a fluorescent powder region and a laser diffusion region located on a reflection base plate; the fluorescent powder region is used for emitting a fluorescent light under the excitation of an incident laser and reflecting out; the laser diffusion region is used for diffusing the incident laser and reflecting out. If the fluorescent wheel is applied in the fluorescent conversion system, the fluorescent light and the laser emitted by the fluorescent wheel can be directly collected by a same light collection device; compared with the mode of respectively carrying out corresponding alignment and convergence to the fluorescent light and the laser and the design of an optical path conversion part in the prior art, the fluorescent conversion system is simplified; the integrated size is reduced; and the fluorescent conversion system is minimized.

Description

technical field [0001] The invention relates to the technical field of fluorescence conversion, in particular to a fluorescence wheel and a fluorescence conversion system. Background technique [0002] At present, due to the low cost of obtaining fluorescence, the application of fluorescence is becoming more and more extensive. When obtaining fluorescence, the excitation light source is mainly used to excite the phosphor to emit fluorescence. [0003] An existing fluorescent conversion system is described below. [0004] figure 1 Shown is a fluorescent conversion system in the prior art, which includes: an excitation light source 11, a converging lens group 12 located in the light emitting direction of the excitation light source 11, located in the light emitting direction of the converging lens group 12 and at an angle of 45 degrees to the light emitting direction The light combining unit 13 (such as dichroic mirror) of angle, the fluorescent wheel 14 that is positioned a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20F21V9/10F21V9/40
CPCF21V9/40G03B21/204
Inventor 田有良李巍王艳辉
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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