LED lamp for improving lighting effect and reducing light attenuation

Abstract

The invention discloses an LED lamp for improving the lighting effect and reducing the light attenuation. The LED lamp comprises an LED lamp body, a downwards-concave groove is formed in the middle of the LED lamp body, an LED light source is installed in the groove and comprises an LED chip and a metal substrate, the LED chip is arranged on the upper surface of the metal substrate, an insulation layer is paved on the metal substrate, a circuit layer is arranged on the insulation layer, a packaging glue limiting layer made of insulation materials is paved on the circuit layer, a fluorescence glue limiting layer made of insulation materials is paved on the packaging glue limiting layer, packaging glue is poured into the packaging glue limiting layer, and fluorescence glue is poured into the fluorescence glue limiting layer. The LED lamp for improving the lighting effect and reducing the light attenuation has the advantages that the direct contact between the fluorescence glue and a wafer is avoided, transfer efficiency of fluorescent powder is reduced due to the heating effect to the fluorescent powder by heat emitted when the wafer is lighted, the radiating efficiency of the whole LED streetlamp is improved, accordingly, the service life of the whole LED lamp is prolonged, and the retention rate of light quantity is improved.

Description

technical field [0001] The invention relates to an LED lamp, in particular to an LED lamp with improved light efficiency and reduced light decay. Background technique [0002] The current research direction in China mainly focuses on the improvement of luminous efficiency, and some foreign and domestic companies have proposed that the luminous efficiency should be increased to 150lm / W by 2015, but they have not elaborated on the detailed plan. There is a goal to solve the problem of LED color drift other than light efficiency. Our company is now setting the goal to solve the problem of color drift and light effect at the same time according to the higher standards of the peers, so as to enhance product competitiveness. At present, the packaging level of mainstream LED integrated forms in China, the main technical parameters that can be mass-produced are basically between 100-110LM / W, and according to the current product packaging structure and packaging process, the 2000-hou...

AI Technical Summary

Problems solved by technology

At present, the packaging level of mainstream LED integrated forms in China, the main technical parameters that can be mass-produced are basically between 100-110LM / W, and according to the current product packaging structure and packaging process, the 2000-hour light decay level is basically 10% About, after the 2000-hour lighting life is over, in addition to the 10% attenuation of the light decay, there is another key indicator, the color will change, but domestic manufacturers have not paid enough attention to this point, based on the LED light source. The core components of LED street lamps, if the above two points are not improved, the overall efficiency and reliability of LED street lamps cannot be effectively improved

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