Color wheel assembly, light source device and projection system

A light source device and component technology, applied in the optical field, can solve the problems of large outer diameter of the color wheel, increase the complexity of the light source, and the difficulty of miniaturization of the light source, and achieve the effect of simple drive control and reduced radial size

Active Publication Date: 2019-07-09
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two-color wheel structure refers to the two-color wheel system of fluorescent wheel + filter wheel. However, synchronous control of the fluorescent wheel and filter wheel is required, which increases the complexity of the light source.
In the single color wheel structure, the color wheel includes the inner ring as the fluorescent area and the outer ring as the filter area. In this structure, there is no need to consider the synchronization of the fluorescent area and the filter area. However, the width of the fluorescent area and the width of the filter area are different in color Superimposed on the radial direction of the color wheel, resulting in a large outer diameter of the color wheel, making it difficult to miniaturize the light source

Method used

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  • Color wheel assembly, light source device and projection system
  • Color wheel assembly, light source device and projection system
  • Color wheel assembly, light source device and projection system

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Embodiment Construction

[0028] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. Similar applications, therefore, the present invention is not limited by the specific embodiments disclosed below. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] see figure 1 , figure 1 It is a schematic structural diagram of the light source device 100 provided by the first embodiment of the present invention. The light source device 100 is applied to a projection device. The light source device 100 includes an excitation light source 120 , an adjustment device, a color wheel assembly 160 and a first homogenizing device 180 . The excitation light source 120 is used to ...

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Abstract

The invention provides a color wheel assembly. The color wheel assembly comprises a first bearing part, a wavelength conversion element, a second bearing part and a light filtering element, wherein the wavelength conversion element is fixed around the peripheral wall of the first bearing part, and is used for receiving the exciting light of a light source and generating excited light; the second bearing part is fixedly connected with one end of the first bearing part; and the light filtering element is fixed on the second bearing part and is used for receiving and filtering the excited light.The invention further provides a light source device and a projection system comprising the color wheel assembly. The color wheel assembly disclosed by the invention is simple in rotation control andrelatively small in size.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a color wheel assembly, a light source device and a projection system. Background technique [0002] At present, spatial light modulators are widely used in the field of projection display. Spatial light modulators generally include LCD, LCOS, DMD, etc. The single-chip spatial light modulator projection system realizes color projection display based on sequentially switched primary color light. Simple structure, low cost and other characteristics, widely used in the low-end market. Since the spectral bandwidth of the laser-excited phosphor is wide, a filter is usually added to the light source to intercept the required band, such as intercepting green or red light from yellow fluorescence. [0003] In an actual light source, a two-color wheel or a single-color wheel structure is generally used to filter the phosphor spectrum. The two-color wheel structure refers to the two-col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G02B26/00
CPCG03B21/204G02B26/008F21V14/08G02B26/00G03B21/20
Inventor 杜鹏郭祖强李屹
Owner APPOTRONICS CORP LTD
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