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Lateral light-emitting diode

A side-lighting and diode technology, applied in the field of optical components, can solve the problems of reducing the light-extraction efficiency and large light loss of the side-light-emitting diodes, and achieve the effect of improving the light-extracting efficiency and reducing the loss.

Inactive Publication Date: 2009-11-18
FU ZHUN PRECISION IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for the side LEDs obtained in this way, due to the multiple refractions or reflections of the light in the light-transmitting element, the loss of the light in the propagation process is relatively large, which reduces the light extraction efficiency of the side LEDs.

Method used

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  • Lateral light-emitting diode
  • Lateral light-emitting diode

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Experimental program
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Effect test

Embodiment Construction

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

[0011] see figure 1 and figure 2 , The side light-emitting diode 10 of the present invention includes a substrate 12 , a cup 14 , a light-emitting chip 16 and a package 18 .

[0012] Wherein, the substrate 12 is made of conductive and thermally conductive metal and other materials.

[0013] The bowl cup 14 is made of light-transmitting materials such as epoxy resin and glass, and is disposed above the base plate 12 to form a receiving space between the bowl cup 14 and the base plate 12 . The bowl cup 14 is roughly in the shape of a billiard table, and the diameter of its cross section gradually decreases upwards from the bottom of the bowl cup 14, so that the sides of the axial section of the bowl cup 14 are arc-shaped to reduce the impact on the side of the bowl cup 14. The incident angle of the light can reduce the occurrence of ...

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Abstract

The invention relates to a lateral light-emitting diode which comprises a baseplate, a luminescence chip and an encapsulation body. The luminescence chip is arranged on the baseplate and electrically connected with the baseplate; the encapsulation body is positioned at the periphery of the luminescence chip and encapsulates the luminescence chip on the baseplate; the top of the encapsulation body is provided with a concave, and a reflection layer is formed on the wall of the concave; and incident light on the top of the encapsulation body is reflected to the side surface of the encapsulation body by the reflection layer and then penetrates through the side surface of the encapsulation body. The lateral light-emitting diode utilizes the concave on the top of the encapsulation body and the reflection layer to reflect the incident light on the top of the encapsulation body to the side surface of the encapsulation body, thereby improving the light projection efficiency of the side surface.

Description

technical field [0001] The invention relates to an optical element, in particular to a side light emitting diode. Background technique [0002] In the application of light emitting diode (Light Emitting Diode, hereinafter referred to as LED), sometimes it is necessary to obtain the effect of side light emitting. The common method of obtaining side light emitting diode is to place a front light emitting diode on its side so that the light emitting surface is facing a light-transmitting element , when working, the light emitted by the front light-emitting diode is reflected or refracted by the light-transmitting element multiple times and emitted from one side of the light-transmitting element to obtain the effect of side light emission. [0003] However, for the side LEDs obtained in this way, since the light is refracted or reflected multiple times in the light-transmitting element, the light is greatly lost during propagation, which reduces the light extraction efficiency o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V19/00F21V7/04H01L23/28H01L33/00F21Y101/02H01L33/54H01L33/60
CPCH01L33/54H01L33/60H01L2224/48091H01L2224/45144H01L2924/00014H01L2924/00
Inventor 张家寿
Owner FU ZHUN PRECISION IND SHENZHEN