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Illuminating apparatus

A lighting device and heat dissipation device technology, which is applied in the direction of lighting devices, cooling/heating devices of lighting devices, lighting and heating equipment, etc., can solve the problems of shortened service life, easy attenuation of light-emitting diode luminous intensity, and poor stability of light-emitting diodes. Affected by the surrounding temperature and other issues, to achieve the best heat dissipation efficiency and ensure the effect of luminous characteristics

Inactive Publication Date: 2009-08-26
FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The stability of light-emitting diodes during use is easily affected by the surrounding temperature. For example, when the temperature is too high, the luminous intensity of light-emitting diodes is prone to attenuation, resulting in a shorter service life

Method used

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  • Illuminating apparatus
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Embodiment Construction

[0010] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0011] see figure 1 , a lighting device 10 with better heat dissipation efficiency provided by the first embodiment of the present invention includes at least one light source 11 , a thermoelectric cooler (Thermoelectric Cooler, TE Cooler) 13 and a heat dissipation device 15 .

[0012] Please refer to figure 2 , the at least one light source 11 can be at least one solid-state light source, such as a light emitting diode or the like. The number of the at least one light source 11 can be multiple, such as multiple light emitting diodes, and the multiple light emitting diodes can be white light emitting diodes or colored light emitting diodes, such as red, green, blue light emitting diodes and the like. In addition, the at least one light source 11 can be installed on a metal circuit board (Metal Core PCB, MCPCB) 12 , so as to form a therma...

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PUM

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Abstract

The invention relates to an illuminating apparatus, which comprises at least one light source, an electrothermal cooler, a radiator and a first metal thin film, wherein the electrothermal cooler comprises a cold end and a hot end, the cold end is thermally connected with the light source, the radiator is thermally connected with the hot end of the electrothermal cooler, and the first metal thin film is arranged between and to connect the hot end of the electrothermal cooler and the radiator. The first metal thin film is connected with the hot end of the electrothermal cooler and the radiator to form thermal connection between the electrothermal cooler and the radiator to allow the electrothermal cooler to conduct the heat of the at least one light source to the radiator for radiation with an optimal radiation efficiency, so the illuminating performance of the illuminating apparatus is guaranteed effectively.

Description

technical field [0001] The present invention relates to an illuminating device, in particular to an illuminating device capable of obtaining better heat dissipation efficiency. Background technique [0002] Currently, Light Emitting Diodes (LEDs) are gradually replacing Cold Cathode Fluorescent Lamps (CCFLs) as light-emitting elements in lighting devices due to their good light quality and high luminous efficiency. For details, please refer to Michael S. "Solid-State Lighting: Toward Superior Illumination" published by Shur et al. in Proceedings of the IEEE, Vol.93, No.10 (October 2005). [0003] The stability of the light-emitting diodes during use is easily affected by the surrounding temperature. For example, when the temperature is too high, the luminous intensity of the light-emitting diodes is likely to attenuate, resulting in a shortened service life. [0004] In view of this, it is necessary to provide a lighting device that can obtain better heat dissipation effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/00H01L23/36H01L23/38F21Y101/02F21V29/54F21V29/74F21Y115/10
Inventor 曹治中赖志铭
Owner FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC