Light source device and projection device using same

A technology of a light source device and a filter device, applied in the field of light sources, can solve the problems of difficulty in realizing, difficult to achieve precise synchronization of two color wheels, poor synchronization effect, etc.

Inactive Publication Date: 2012-06-27
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is difficult to achieve precise synchronization of the two color wheels with the above metho

Method used

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  • Light source device and projection device using same
  • Light source device and projection device using same
  • Light source device and projection device using same

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] See Figure 1 to Figure 2 , figure 1 It is a structural schematic diagram of the first embodiment of the light source device of the present invention. figure 2 It is a front view of the first embodiment of the wavelength switching device and the filter device in the light source device of the present invention. Such as figure 1 As shown, the light source device 100 of this embodiment mainly includes an excitation light source 101 , a rotating shaft 102 , a first light collecting device 109 , a wavelength converting device 106 , a filter device 107 , and a driving device 108 .

[0014] The excitation light source 101 is used for generating an excitation light. In the first embodiment of the wavelength conversion device and filter device of the light source device 100 in this embodiment, the excitation light source 101 is an ultraviolet or near ultraviolet laser or an ultraviolet or near ultraviolet light emitting diode to generate ultraviolet or near ultraviolet exci...

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Abstract

The invention provides a projection device, a light source device and a light source component. The light source device comprises an exciting light source, a wavelength conversion device, a light filtering device, a mechanical transmission device and a drive device, wherein the exciting light source is used for generating exciting light; the wavelength conversion device at least comprises a first wavelength conversion area; the light filtering device comprises at least one first light filtering area correspondingly arranged with the first wavelength conversion area; the wavelength conversion device is connected with the light filtering device together through the mechanical transmission device; and the drive device is used for driving one of the wavelength conversion device, the light filtering device and the mechanical transmission device to lead the first wavelength conversion area and the first light filtering area to synchronously move. In such a way, the light filtering device and the wavelength conversion device are connected with each other through the mechanical transmission device and are driven by the same drive device; and the light source device has the advantages of easiness for realization, high synchronism and the like.

Description

technical field [0001] The invention relates to the technical field of light sources for illumination and display, in particular to a light source device and a projection device using the light source device. Background technique [0002] At present, projectors are widely used in various applications such as movie playback, conferences, and publicity. As we all know, in the light source of a projector, a fluorescent color wheel is often used to provide a sequence of colored light. Wherein, different color segments of the fluorescent color wheel are alternately and periodically arranged on the propagation path of the excitation light, and then the excitation light is used to excite fluorescent materials on different color segments of the fluorescent color wheel to generate fluorescence of different colors. However, due to the wide spectral range produced by the fluorescent material, the color purity of some fluorescent materials is insufficient, resulting in an insufficient ...

Claims

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Application Information

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IPC IPC(8): G03B21/20G03B21/14G03B21/00F21V9/10F21V9/40G02B7/00
Inventor 杨毅
Owner APPOTRONICS CORP LTD
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