LED (light emitting diode) focus light-emitting device and manufacturing method thereof

Abstract

The invention relates to an LED (light emitting diode) focus light-emitting device and a manufacturing method thereof. The device is provided with a copper substrate of which the cross section is semicircular, a radiating aluminum substrate and a lampshade, wherein a plurality of rows of LED light bars are arranged along the side edge of the copper substrate; each LED light bar is formed by uniformly distributing a plurality of LED light beads at intervals along the same line; the copper substrate is arranged on the top end of the radiating aluminum substrate and a power access wire of the copper substrate is led out from the side end of the radiating aluminum substrate; and a reflector is arranged below the radiating aluminum substrate. According to the LED focus light-emitting device and the manufacturing method thereof, the LED light beads is pasted on the thin copper substrate, the copper substrate is adhered to the arc-shaped radiating aluminum substrate, a point light source environment is simulated, and the stability of heat dissipation and light effect is guaranteed at the same time, so that point light sources are combined one by one and arranged to form a linear luminous body, and the conversion of luminous point with low power into a luminous surface with high power is realized; and the manufacturing and the processing are convenient, development cost is greatly reduced, enormous social benefit is realized, and the traditional aesthetics of people is satisfied.

Description

technical field [0001] The invention relates to an LED focus lighting device and a manufacturing method thereof. Background technique [0002] In the known technical field, LED (Light Emitting Diode), light-emitting diode, is a solid-state semiconductor device that can convert electrical energy into visible light, and it can directly convert electricity into light. The heart of LED is the wafer of a semiconductor, and one end of wafer is attached on a bracket, and one end is negative pole, and the other end connects the positive pole of power supply, and whole wafer is encapsulated by epoxy resin. Semiconductor wafer is made up of two parts, and a part is P-type semiconductor, and hole occupies an leading position in it, and the other end is N-type semiconductor, and here mainly is electron. But time these two kinds of semiconductors couple together, between them, just form a P-N junction. When electric current acts on this chip by wire time, electron will be pushed to P d...

AI Technical Summary

Problems solved by technology

[0004] Generally, there are two types of existing LED lamps. The first one is to construct an LED lamp tube with single or multiple rows of LEDs. The lampshade is a diffuser or filled with astigmatism materials to ensure that the light is uniform. The disadvantages of this lamp tube are as follows : The lampshade affects the light efficiency of the LED tube. A single LED chip is welded on the PCB, and the whole PCB is then welded or screwed on the aluminum substrate or radiator, which is troublesome to manufacture

The second type is made of chip-on-board panel LED modules, and its cover is transparent and not filled with light-scattering materials. The disadvantage of this lamp structure is that: LED is a panel source, which cannot achieve the light distribution of traditional fluorescent lamps. The packaging board is welded or screwed to the aluminum substrate or heat sink, which is troublesome to manufacture. It is necessary to make the LED aluminum substrate and heat sink closely contact with screws. This kind of lamp has a complicated structure. The LED phosphor is some kind of soft silicone grease, which needs to be covered Protect the LED chip, affect the appearance, and also reduce the light efficiency

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