The most popular category today is LED. The scope of application is huge.
Today I will only start from our products to help you understand it
1. What is LED
LED is an abbreviation from the word Light Emitting Diode. As the name implies, LED is an electronic device that can convert electrical energy into Light energy and has the characteristics of a Diode.
2. How LEDs work
LEDs emit self-emitting light (incoherent light).Most of them adopt double heterojunction structure, sandwiching the active layer between the p-type and n-type confining layer, but there is no optical resonator, so there is no threshold.LEDs are divided into front luminescence and side luminescence. The side luminescence LED has a larger driving current, a smaller output light power, a smaller beam emission Angle and a higher coupling efficiency with the fiber, so the light power into the fiber is higher than the front luminescence LED.
3. Basic structure of LED
The first commercial diode was produced in 1960.Its basic structure is a piece of electroluminescent semiconductor material placed on a shelf with leads, then sealed around with epoxy resin to protect the inner core.
4. Characteristics of LED light source
Voltage: LED uses low voltage power supply. The single voltage is between 1.9-4V, which is safer than using high voltage power supply.
Efficiency: high light efficiency, the highest light efficiency in the laboratory has reached 208 LM/W (CREE), is the lighting product with the highest light efficiency at present.
5.Shock resistance: LED is a solid state light source, because of its particularity, with other light source products can not be compared with the shock resistance.
Stability: 100,000 hours, light decay of 70% of the initial
Response time: The response time of LED lights is nanosecond, which is the fastest response time of any light source.
Environmental protection: no metal mercury and other harmful substances to health.
6.Color: LED's band speed is quite narrow, the luminous color is pure, no noise light, covering the whole band of visible light, and can be combined into any desired visible light by R\G\B.
LED has rich colors
Due to the narrow bandwidth of LED and high color purity, the color of LED is much richer than that of other light sources.
According to the relevant expert calculation, LED color than other light source rich 30%, therefore, it can more accurately reflect the authenticity of the object, of course, also more favored by consumers!
