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Light-emitting diode lamp

A technology of light-emitting diodes and lamps, which is applied to semiconductor devices, optics, and light guides of light-emitting elements. It can solve problems such as waste, light leakage, and inability to achieve lighting effects, and achieve the effects of reducing light leakage and improving light extraction efficiency.

Inactive Publication Date: 2015-01-21
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the high directivity of the light emitted by the LED, after the light enters from one end of the LED light guide rod, a large part of the light will directly pass through the light guide rod, and then exit from the opposite end of the light guide rod. Light leakage occurs
Obviously, the light emitted from the other end of the light guide rod cannot achieve any lighting effect and will be directly wasted, thus affecting the light output efficiency of the entire fluorescent lamp

Method used

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Examples

Experimental program
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Embodiment Construction

[0016] see figure 1 , shows the light emitting diode lamp 10 according to the first embodiment of the present invention. The LED lamp 10 is a LED fluorescent lamp. The LED lamp 10 includes a light guide portion 20 , and a light emitting diode 30 and a reflector 40 mounted on opposite ends of the light guide portion 20 .

[0017] The light guide part 20 is made of transparent or translucent materials, such as epoxy resin, polycarbonate, polymethyl methacrylate and the like. In this embodiment, the light guide part 20 is in the shape of a long rod or a strip, and its cross section is in a regular or irregular shape such as a circle, a rectangle, or a pentagon. The lower part of the light guide part 20 is a light emitting surface 22 , the upper part is a scattering surface 24 , and the left end is a light incident surface 26 . In this embodiment, the light incident surface 26 is a plane located between the light exit surface 22 and the scattering surface 24 . The LED 30 is at...

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PUM

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Abstract

A light-emitting diode lamp comprises a light guide portion and a light-emitting diode. The light guide portion comprises a light exiting surface and a light incoming surface close to the light exiting surface. The light incoming surface is located on one end of the light guide portion and faces the light-emitting diode. The other end of the light guide portion opposite to the light incoming surface is provided with a reflecting surface. A part of light emitted by the light-emitting diode enters the light guide portion from the light incoming surface, and is then reflected back to the light guide portion by the reflecting surface and emitted from the light exiting surface. The light-emitting diode lamp can return the light back to the light guide portion through reflection of the reflecting surface, thereby improving the luminous efficiency.

Description

technical field [0001] The invention relates to a lamp, in particular to a light emitting diode lamp. Background technique [0002] As an emerging light source, light emitting diodes have been widely used in various applications. At present, there are many lamps equipped with light-emitting diodes as light-emitting sources, such as street lamps, car lamps, fluorescent lamps, table lamps, bulb lamps, and the like. Existing light-emitting diode fluorescent lamps usually consist of a light-guiding rod and a light-emitting diode arranged at one end of the light-guiding rod. The light guide rod is equipped with a large number of microstructures on the back opposite to the light-emitting surface, which is used to refract or reflect the light input into the light guide rod by the light-emitting diode, so as to destroy the total reflection of the light in the light guide rod, so that the light can Emitted from the light emitting surface of the light guide rod. [0003] However, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V8/00F21V13/02F21Y101/02
CPCF21K9/27F21K9/61F21V13/02
Inventor 陈柏洲
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD