LEDs-LUX Opto & Illumination Technology Co., Ltd is a professional manufacturer who specializes in research, development, manufacturing of commercial LED Lighting. Our LED Panel Light series have specialized product Patents. Since 2008, we have focused on R & D and manufacturing of Architectural LED Panel Lighting, specially designed for high-end commercial applications.
Our factory consists more than 400,000SF of manufacturing space and over,40,000SF off office and show room area. Ecolite designs and manufactures PWM, 0/1-10V and DALI dimmable LED Driver, specialized private molds, LED light guide plate (LGP) and diffuser is supplied and self-produced by SMT machine, wave-soldering machine, CNC cut machine, LGP design software and 3D-V-Cut machine, ERP system, lab test and online test equipments and ISO9001:2008 quality control system.
LED (Light Emitting Diode), light-emitting diode, is a solid-state semiconductor device that can convert electrical energy into visible light. It can directly convert electricity into light. The heart of the LED is a semiconductor chip. One end of the chip is attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the entire chip is encapsulated by epoxy resin.
The semiconductor wafer is composed of two parts, one part is a P-type semiconductor, in which holes are dominant, and the other end is an N-type semiconductor, where mainly electrons. But when these two semiconductors are connected, a P-N junction is formed between them. When electric current acts on the chip through the wire, the electrons will be pushed to the P region, where the electrons recombine with holes, and then emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light, that is, the color of light, is determined by the material forming the P-N junction.
At first, LEDs were used as indicator light sources for instruments and meters. Later, LEDs of various light colors were widely used in traffic lights and large-area display screens, resulting in good economic and social benefits. Take the 12-inch red traffic signal as an example. In the United States, a 140-watt incandescent lamp with long life and low light viewing efficiency was used as the light source. It produces 2000 lumens of white light. After passing through the red filter, the light loss is 90%, leaving only 200 lumens of red light. In the newly designed lamp, Lumileds uses 18 red LED light sources, including circuit losses, and consumes a total of 14 watts to produce the same light effect. Automobile signal light is also an important field of LED light source application.
For general lighting, people need a white light source. In 1998, the white LED was successfully developed. This LED is made by encapsulating a GaN chip and yttrium aluminum garnet (YAG). The GaN chip emits blue light (λp=465nm, Wd=30nm), and the Ce3+-containing YAG phosphor produced by high-temperature sintering emits yellow light after being excited by this blue light, with a peak value of 550n LED lamp m. The blue LED substrate is installed in a bowl-shaped reflective cavity, covered with a thin layer of resin mixed with YAG, about 200-500nm. The blue light emitted by the LED substrate is partially absorbed by the phosphor, and the other part of the blue light is mixed with the yellow light emitted by the phosphor to obtain white light.