A SMD Ellipse Concentrating Light Emitting Diode

Abstract

The invention relates to a surface mount type elliptical light concentrating LED. The surface mount type elliptical light concentrating LED comprises a substrate, a support, an infrared luminous chip and a packaging colloid. A plurality of stand columns which are symmetric relative to the center of the substrate are arranged inside the substrate and provided with conducting layers; the support is arranged in the center of the substrate through the stand columns, and the center of the support is provided with a round cup type hole; the infrared luminous chip is arranged in the center of the bottom of the round cup type hole and electrically connected with the conducting layers of the stand columns; the packaging colloid coats the luminous chip and comprises a top packaging colloid, a middle packaging colloid and side packaging colloids, wherein the top packaging colloid is in a semi-elliptical shape and covers the middle packaging colloid, the middle packaging colloid covers the support and fills up the round cup type hole of the support, and the side packaging colloids wrap the substrate. The surface mount type elliptical light concentrating LED has the advantages of being high in efficiency, large in angle range, good in light concentration and high in reliability.

Description

Technical field [0001] The invention relates to a patch type elliptical concentrating light emitting diode. Background technique [0002] At present, infrared electronic whiteboards and touch screens use infrared emission tubes as the size (over 50 inches), and the in-line emission tube is used as the emission light source, and the small size is the PCB patch type emission tube, but these two design methods are more obvious The defects, where: [0003] The advantages of in-line launch tube are: [0004] 1. Large emissivity, suitable for large size; [0005] 2. The bracket is designed with a cup for concentrating light; [0006] 3. Because of the in-line type, the glue encapsulation head can be designed with a larger condensing surface. [0007] The disadvantages of the in-line launch tube are: [0008] 1. The package size is large, unable to meet the thinner and thinner product design; [0009] 2. Because of the direct plug-in type, the generation operation requires more manual plug-ins,...

AI Technical Summary

Problems solved by technology

[0008] 1. The package size is large, which cannot meet the increasingly thinner product design;

[0009] 2. Because of the in-line type, the generation operation requires more manual plug-ins, which is not suitable for mass generation and has poor consistency;

[0010] 3. Glue-filled packaging, poor consistency and poor reliability

[0014] 1. PCB planar design, no light concentrating function, random power difference;

[0015] 2. Can only be applied to small size touch screen

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