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Light source device

A light source device and solid-state lighting technology, which is applied to light sources, point light sources, lighting devices, etc., and can solve the problems of reducing the luminous efficiency of light-emitting elements 123 and heat cannot be eliminated.

Inactive Publication Date: 2010-03-03
FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat generated by the plurality of light emitting elements 123 cannot be removed from the casing 11 in a timely and effective manner, thereby reducing the luminous efficiency of the plurality of light emitting elements 123

Method used

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] See figure 2 , a light source device 20 provided by the first embodiment of the present invention includes a circuit board 21 , a solid-state light emitting element 22 , a reflector 23 , and a package 24 .

[0013] The circuit board 21 includes a first surface 210 and a second surface 212 opposite to the first surface 210 . A circuit layer 214 is disposed on the first surface 210 of the circuit board 21 . The base material of circuit board 21 can be selected Al2O3 (Al 2 o 3 ), aluminum nitride (AlN) beryllium oxide (BeO) and other ceramic materials or silicon materials. The circuit layer 214 can be a copper layer or a gold layer. It can be understood that the circuit board 21 can also be a metal core printed circuit board (Metal Core Printed Circuit Board, MCPCB).

[0014] In this embodiment, the solid-state light-emitting device 22 is a light-e...

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PUM

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Abstract

The invention relates to a light source device with higher heat dissipation efficiency, which comprises a circuit board, a solid light-emitting element and a hollow columnar metal reflecting shield, wherein the circuit board is provided with a circuit layer; the solid light-emitting element is arranged on the circuit board and electrically connected with the circuit layer; the metal reflecting shield is arranged on the circuit board and electrically insulated from the circuit layer; and the inner surface of the metal reflecting shield surrounds the solid light-emitting element to reflect a light ray emitted by the solid light-emitting element.

Description

technical field [0001] The invention relates to a light source device, in particular to a light source device with solid-state light-emitting elements such as light-emitting diode chips. Background technique [0002] Now, light-emitting diodes (Light Emitting Diode, LED) have been widely used in many fields. Here, a new type of light-emitting diode can be found in Daniel A. Steigerwald et al. in the document IEEE Journal on Selected Topics in Quantum Electronics, Vol.8, No. .2, Illumination With Solid State Lighting Technology in March / April 2002. LEDs can generally emit light of specific wavelengths, such as visible light, but most of the energy received by LEDs is converted into heat, and the rest of the energy is actually converted into light energy. Therefore, the heat generated by the light-emitting diodes must be dissipated to ensure the normal operation of the light-emitting diodes. [0003] Such as figure 1 As shown, a light source device 10 includes a housing 11 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/20F21V17/00F21V19/00F21Y101/02F21V29/505
CPCH01L33/54H01L33/642H01L33/647H01L33/60
Inventor 王君伟徐弘光
Owner FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC
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