LED and LED street lamp

A technology of LED street lamps and LED chips, which is applied in lighting devices, fixed lighting devices, electric light sources, etc., can solve the problems of street lighting efficiency decline, and achieve the effects of avoiding light loss, uniform illumination, and low cost

Inactive Publication Date: 2010-12-01
XIAMEN HUALIAN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the transmittance of the secondary lens used in this structure to visible light is only about 90%, which causes the decline of street lighting effect.

Method used

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Embodiment Construction

[0032] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0033] Referring to FIG. 1( a ), FIG. 1( b ) and FIG. 1( c ), the LED 2 of this embodiment includes an LED chip 22 , an LED bracket 21 , fluorescent glue 23 , silica gel 24 and packaging lens 25 . The LED chip 22 is fixed on the LED bracket 21 , and then leads from the LED chip 22 to the LED bracket 21 . Apply fluorescent glue 23 on the LED chip 22 , install the encapsulation lens 25 on the LED bracket 21 and cover the outside of the LED chip 22 , and then pour silica gel 24 into the encapsulation lens 25 . The silica gel 24 at the lower end of the encapsulating lens 25 is in close contact with the LED bracket 21 and other structures without an air layer, and its material can be transparent silica gel, transparent epoxy resin, etc. The encapsulated lens 25 is formed by splicing two spherical caps similar to ellipsoids, the height of the splicing par...

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Abstract

The invention relates to the fields of light-emitting diode (LED) structure and LED street lamp lighting. The LED is characterized in that an LED chip is fixed on an LED support and coated with fluorescent glue; a packaged lens is arranged above the LED support and outside the fluorescent glue, and silica gel is injected between the inner side of the packaged lens and the outside of the fluorescent glue, wherein the packaged lens is formed by splicing two spherical crown-shaped bodies which are approximately ellipsoid; and the packaged lens and the silica gel can replace an integral silica gel packaging structure having the packaged lens profile. The LED street lamp comprises the LEDs, a lamp socket and reflectors, wherein the reflectors comprise a plurality of U-shaped elongated slots; the LEDs are arranged at the bottom of the U-shaped elongated slots of the reflectors; and the reflectors are mounted on the lamp socket. The invention solves the problem that the white-light LED is prone to non-uniform illumination intensity when being used in the street lamp for lighting with simple structure and achieves the LED structure and the LED street lamp capable of realizing the uniform rectangular light spot lighting.

Description

technical field [0001] The invention relates to the field of light-emitting diodes (LEDs), in particular to a light-emitting diode (LED) capable of realizing rectangular light distribution and a street lamp lighting device composed of the light-emitting diodes (LEDs). Background technique [0002] Power-type white light LEDs are considered to be a new generation of solid-state lighting sources because of their energy-saving, environmental protection and many other advantages. They will gradually replace traditional lighting sources such as incandescent lamps and fluorescent lamps, and enter the field of general lighting. Ordinary LED street lights use ordinary packaged LEDs. Since the light emitted by the light-emitting chips and phosphors of ordinary packaged LEDs is not optically corrected, a circular spot (Lambertian light distribution) will be formed, so it irradiates the road surface The light distribution is a circular light spot with bright center and dark surrounding...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21S8/00F21V5/04F21V7/10
Inventor 李兴龙李小红柴储芬
Owner XIAMEN HUALIAN ELECTRONICS CO LTD
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