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Heat dissipation device and projector

A heat dissipation device and projector technology, applied in projection devices, lighting devices, lighting and heating equipment, etc., can solve problems such as system reliability decline and system life cannot be effectively improved

Pending Publication Date: 2020-05-12
YOUNG OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the motor moving parts used to rotate the fluorescent wheel and the color wheel will cause the reliability of the system to decrease, so that the life of the system cannot be effectively improved.

Method used

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  • Heat dissipation device and projector
  • Heat dissipation device and projector
  • Heat dissipation device and projector

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] figure 1 It is a schematic diagram of an optical path of a projector according to an embodiment of the present invention. For example, in the heat dissipation structure of the phosphor layer in the projector of an embodiment of the present invention, a cooling chip is used to help the heat dissipation of the phosphor layer, so that a good heat dissipation effect can be achieved and the heat dissipation of the phosphor layer can be reduced. Working temperature, thereby increasing the service life of the luminescent powder layer. In addition, since moving parts such as rotatable fluorescent wheels can be selectively omitted, the reliability and service life of the projector can be improved. The design of the projector of the present invention will be described below.

[0015] Please refer to figure 1 , the projector 500 of this embodiment includes an optical engine 400 , a light valve 510 and a projection lens 520 .

[0016] The optical machine 400 of this embodiment ...

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Abstract

A heat dissipation device includes two insulation layers, two metal layers, a semiconductor layer, and a phosphor layer. The semiconductor layer is disposed between the two metal layers, the whole ofthe semiconductor and the two metal layers is disposed between the two insulation layers, and the phosphor layer is disposed on one of the insulation layers. A projector is also provided.

Description

technical field [0001] The invention relates to an optical device, in particular to a cooling device and a projector. Background technique [0002] At present, the luminous efficiency of green light-emitting diodes (LEDs) is low. Therefore, in order to generate green light on the market, most of the short-wavelength light sources such as blue light or UV light are used as excitation light to irradiate the phosphor powder, so that the phosphor powder is excited. Green light. Usually, the conversion efficiency of the phosphor is directly proportional to the excitation light density it receives, and the higher the light density, the higher the temperature. However, phosphor lifetime is inversely proportional to its operating temperature. Most of the current methods are to first coat the phosphor layer on a substrate, then connect the substrate to the heat dissipation fins, and then blow air to the heat dissipation fins to remove the heat. However, due to the limited thermal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/16G03B21/20H10N10/17
CPCG03B21/16G03B21/204H01L33/642H10N10/17F21K9/64H01L33/645
Inventor 黄家斌
Owner YOUNG OPTICS