Space omnidirectional light-emitting diode (LED)

Abstract

The invention provides a space omnidirectional light-emitting diode (LED), comprising a substrate, LED luminous wafers, a support body and a reflective blade surface, wherein the LED luminous wafers are distributed on the solid crystal positions of the substrate in an equal-angle circumference array manner; the reflective blade surface is designed to form multi-section angles with the horizontal direction; the substrate and the reflective blade surface are assembled into a stereo bracket via the support body; and the reflective blade surface is arranged on the substrate while the orthographic projection of the reflective blade surface on the substrate only covers a plurality of LED luminous wafers of the multiple LED luminous wafers. The invention adopts the front emitted light and reflective light of the reflective blade surface of the LED to irradiate light to the surrounding space and achieve evenly luminous effect in a stereo space.

Description

technical field [0001] The invention relates to the technical field of semiconductor lighting, and relates to a spatial omnidirectional light-emitting LED (LightEmitting Diode light-emitting diode). Background technique [0002] Most of the existing LED products are planar light emitting, it is difficult to achieve the effect of space light, which brings difficulties to lighting design. There are two types of LED devices that can achieve spatial lighting to a certain extent: [0003] 1) One technique is to weld multiple packaged LEDs on the aluminum substrate first, and then fix the aluminum substrate on the side of the heat sink to realize the LEDs emitting light to the surroundings. [0004] See Chinese patent 200820303374.0, such as figure 1 As shown, it discloses an LED multi-faceted lamp. The technical solution adopted is: the lamp includes a lamp holder and a lamp holder, wherein the lamp holder is a cylindrical body with one end open and the other end closed, and a ...

AI Technical Summary

Problems solved by technology

[0008] However, in this technology, this structure adopts the method of connecting all light-emitting chips in parallel, which requires very high consistency of chip voltage. If there is a difference in voltage, the current flowing through each branch will be different, and the branch with larger current will be different. , the life of the chip will be shortened, which will affect the life of the LED as a whole; and the chip is directly pasted on a certain electrode, and the electric heat will not be separated, which will greatly increase the design difficulty of LED application products; moreover, the polyhedral column bracket achieves high precision and high consistency The permanent production is very difficult, and the coating on the surface of the bracket is difficult to control, resulting in a very low yield rate, and it is difficult to stabilize large-scale production; in addition, the mature LED die-bonding, wire bonding, and fluorescent glue processes are all in a horizontal plane The above operation is completed, but the structure of the polyhedron makes it necessary to work on multiple vertical planes for die bonding, wire bonding, and fluorescent glue dispensing, making it difficult to realize automation and large-scale production; the front light intensity of this LED is very weak, Only 20% of the maximum light intensity, there will be a dark area on the front when used

[0009] To sum up, it can be seen that the existing LEDs have strong luminous directivity, and when they are used for lighting, the distribution of light intensity is uneven, and it is impossible to realize omnidirectional lighting in space. Therefore, a special structure LED lamp is designed to realize omnidirectional space. Uniform light emission and large-scale production have become an urgent problem to be solved in the industry

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