Light control assembly and LED lamp

Abstract

The invention relates to a light control assembly and an LED (Light-Emitting Diode) lamp. The LED lamp comprises a printed circuit board, a plurality of groups of radiating fins, a Fresnel lens set and a frame, wherein one side of the printed circuit board is used for being electrically connected with a plurality of LED chips; a primary lens and a secondary lens are sequentially arranged on each LED chip in the light outgoing direction; the plurality of groups of radiating fins are arranged on the other side of the printed circuit board in a heat conducting manner; the Fresnel lens set comprises a plurality of Fresnel lenses; each Fresnel lens independently corresponds to one LED chip; the printed circuit board and the Fresnel lens set are respectively embedded on both sides of the frame; the light control assembly is formed by the primary lenses, the secondary lenses and the Fresnel lenses. In the light control assembly, the primary lenses, the secondary lenses and the Fresnel lenses are sequentially arranged on the axis. According to the light control assembly and the LED lamp which are disclosed by the invention, light is stable and uniform, long-range light illumination meets the illumination standard, the light emitting efficiency is high, and the lamp has a compact structure and a small size and is convenient to maintain.

Description

technical field [0001] The invention relates to a light control component and an LED lamp in the field of LED lighting, in particular to a light control component with a narrow beam and an LED lamp. Background technique [0002] With the continuous development of semiconductor light-emitting materials and processes, light-emitting diodes (LEDs) are gradually replacing traditional light sources and becoming a new generation of light sources. They are widely used in projection lamps, reading lights, car headlights, etc. Advantages, but its outgoing light intensity has a roughly cosine distribution, so it is generally considered to be an approximate Lambertian radiator. If such spatial light intensity distribution is directly applied without proper optical system processing, it will be difficult to meet the performance indicators of lighting fixtures and devices in most cases, and it will also greatly reduce the system performance due to the existence of a large amount of inval...

AI Technical Summary

Problems solved by technology

At present, low-power LED narrow-beam lamps mainly control light through reflectors, but their light control ability is limited, and the main disadvantages are as follows: 1. It is easy to generate stray light, which reduces the efficiency of the light source; 2. The volume of the lamp increases. Short service life and short maintenance cycle; 3. The cost of the reflective cup is relatively high

Because the size of the LED power is proportional to its chip size, high-power LEDs have a larger chip size, so the traditional narrow light control has certain limitations when applied to high-power LEDs, and there are short lighting distances, non-adjustable illuminance, and low efficiency. , Inconvenient maintenance and other disadvantages

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