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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: 2022-02-22
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

[0021] 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.

[0022] 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 generate excitation light of at least one color. The color wheel assembly 160 is used to convert the wavelength of the ...

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Abstract

The present invention provides a color wheel assembly, comprising: a carrier; a wavelength conversion element, fixed around the peripheral wall of the carrier, used to receive excitation light from a light source and generate stimulated light; and a filter element, fixed to the carrier One end face of the bearing part extends around the circumference of the carrier, and is used for receiving and filtering the received light. The present invention also provides a light source device and a projection system including the above-mentioned color wheel assembly. The rotation control of the color wheel assembly of the present invention is simple, and the size is small.

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 Patents(China)
IPC IPC(8): G03B21/20
CPCG03B21/204F21V9/00G03B21/20
Inventor 郭祖强杜鹏李屹
Owner APPOTRONICS CORP LTD
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