Double-lamp illumination device and projection equipment

A lighting device and color wheel technology, applied in the field of projection, can solve the problems of inconvenient heat dissipation design, low utilization rate of light energy, etc., and achieve the effects of avoiding interference loss, improving projection brightness, and improving utilization rate

Inactive Publication Date: 2012-11-07
WUHU AMT MICRO DISPLAY TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a double-lamp lighting device, aiming to solve the problems of low light energy utilization rate and inconvenient heat dissipation design of the existing double-lamp lighting device

Method used

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  • Double-lamp illumination device and projection equipment
  • Double-lamp illumination device and projection equipment
  • Double-lamp illumination device and projection equipment

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Embodiment Construction

[0011] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0012] figure 1 A schematic structural diagram of an embodiment of a dual-lamp lighting device provided by the present invention is shown, and for convenience of description, only parts related to this embodiment are shown.

[0013] The double-lamp lighting device includes two white light sources arranged side by side, and a color wheel is respectively arranged on the output light path of each white light source, as shown in FIG. figure 1 , the two white light sources are the first light source 1 and the second light source 2, a first color wheel 3 is arranged on the output light path of the first...

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Abstract

The invention is applicable to the field of projection and provides a double-lamp illumination device and projection equipment. The double-lamp illumination device comprises two white light sources which are arranged in parallel, wherein a color wheel is arranged on an output light path of each of the two white light sources; the two color wheels have the same structure and synchronously rotate; and a light equalization system which can directly receive emergent light from the color wheels is arranged on the output light paths of the two color wheels. By the double-lamp illumination device, the light emitted from the two light sources is coupled to the light equalization system in a non-overlapped mode in different spaces, the interference loss generated by coupling two beams of light in the same narrow space is avoided, the problem that the light rays cannot fully enter an extremely small light entrance is solved, and the utilization rate of light energy is improved, so that the projection brightness is improved; and moreover, the light penetrating through the color wheels is not required to be strictly focused at the light entrance of the light equalization system, the positions of the first light source and the second light source are not strictly limited, and the thermal design of the device is improved.

Description

technical field [0001] The invention belongs to the technical field of projection, and in particular relates to a double-lamp illuminating device and projection equipment including the device. Background technique [0002] At present, digital light processing (DLP) dual-lamp projection lighting systems generally use light rods for uniform light shaping. The light emitted by the two light sources is coupled into the light rod through reflectors and other devices, and the color wheel is placed at the light outlet of the light rod. . The disadvantage of this system is that when the light emitted by the light source enters the light rod, due to the small size of the entrance area of ​​the light rod, which is usually smaller than the size of the incident spot, the light cannot fully enter the light rod, and different beams are Coupling in the same narrow space will also cause interference loss, so the optical coupling efficiency of this system is low, which will affect the proje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/00G02B27/09F21V13/02
Inventor 吴杰阳倪泽斌金建培
Owner WUHU AMT MICRO DISPLAY TECH
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