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Projection device

A projection device and optical axis technology, applied in projection devices, optics, instruments, etc., can solve the problems of shortening the lifespan and affecting the performance of the projector, and achieve the effect of prolonging the lifespan and improving the heat dissipation effect.

Inactive Publication Date: 2018-10-16
QISDA OPTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Generally speaking, after a long time of use, the life of the light source will be shortened due to brightness attenuation, which will affect the performance of the projector.

Method used

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Embodiment Construction

[0029] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

[0030] see Figure 1 to Figure 3 , figure 1 It is a schematic diagram of the projection device 1 according to an embodiment of the present invention, wherein the reflector 16 is located at the first position, figure 2 for figure 1 A schematic diagram of the reflector 16 moving to the second position, image 3 for figure 1 A side view of the driving unit 14 and the reflector 16 in FIG.

[0031] Such as figure 1 and figure 2 As shown, the projection device 1 includes a first light source 10 , a second light source 12 , a driving unit 14 , a reflector 16 , a light pipe 18 , a first fan 20 , a second fan 22 and a third fan 24 . Wherein, the first fan 20 , the second fan 22 and the third fan 24 are optional components, which are determined by the designer accordin...

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PUM

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Abstract

The invention discloses a projection device. The projection device is provided with two light sources, and a reflecting part is driven to move between two positions by using a drive unit, so that light emitted from one of the two light sources passes through a light pipe. Therefore, the two light sources can emit light in turn to prolong the life of the light sources when the projection device disclosed by the invention is used; and furthermore, the heat dissipation effect of a fan can be effectively improved through the configuration relationship between the drive unit and the fan.

Description

technical field [0001] The invention relates to a projection device, in particular to a projection device capable of prolonging the life of a light source. Background technique [0002] Recently, projectors have been widely used. In addition to being used for conference reports in general offices, projectors are also often used in various seminars or academic courses due to their audio-visual playback capabilities. Generally speaking, a projector includes optical components such as a lens, a light source, and an optical-mechanical module. The light source is used to emit light beams, which are processed by the optical-mechanical module and then projected into images through the lens. Therefore, the light source is an extremely important optical component in a projector. Generally speaking, after a long time of use, the life of the light source will be shortened due to brightness attenuation, which will affect the performance of the projector. Therefore, how to effectively...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/16
CPCG03B21/16G03B21/2013G03B21/2066
Inventor 萧启宏吴宗训
Owner QISDA OPTRONICS (SUZHOU) CO LTD