Multilayer arrayed LED light engine

Abstract

A multilayer arrayed LED light engine at least comprises a substrate, a package, two lead frame pairs, LEDs and an optical lens group. The periphery of the substrate is covered with the package, while the package covers upper periphery and lower periphery of the periphery, so that the package and the substrate from an absolutely sealed structure. The multilayer arrayed LED light engine is applicable to an optical chamber of the package. A fluorescent layer is disposed between an optical glue layer and a silicone protective layer, so that another dampproof mechanism is formed to prevent damp degeneration of the fluorescent layer. The optical glue layer has refractive index in a specific range, so that chances for photons to emit from the optical chamber are increased. Therefore, the multilayer arrayed LED light engine is higher in luminous efficiency and is fully free of damping of optical modules.

Description

technical field [0001] The invention relates to a multi-layer array type light-emitting diode light engine, in particular to a multi-layer array type light-emitting diode light engine which can improve luminous efficiency and completely prevent optical components from getting wet. Background technique [0002] According to the light-emitting principle of LED, it uses the inherent characteristics of semiconductors. It is different from the discharge and heat-emitting principles of incandescent tubes in the past. Instead, it emits light when the current flows into the PN junction of the semiconductor in the forward direction, so LED is called cold. light source (cold light). Due to the advantages of high durability, long life, light weight, low power consumption, and no harmful substances such as mercury, LEDs can be widely used in the lighting equipment industry, and they are usually used in electronic billboards, LED array packaging, etc. Commercial fields such as traffic s...

AI Technical Summary

Problems solved by technology

[0004] However, the shortcoming of the existing technology is that it cannot be used in environments with high water and moisture content for a long time, and in harsh environments such as deep sea, space or military. This is because the layers of the package are not sealed and bonded. The overall airtightness is required, so moisture or moisture can easily penetrate into the packaging structure, resulting in deterioration or even damage to the light-emitting components and optical units. Therefore, it cannot be used in a humid environment, which will affect the overall structural strength, and the reflector It must be manufactured separately and then installed, resulting in low packaging efficiency. Therefore, it must be improved to provide a light-emitting diode packaging structure that completely prevents moisture from entering, is durable, and maintains the performance of optical components for a long time.

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