LED Cabinet Light The principle of light
LED is a light-emitting diode (Light Emitting Diode) is a solid-state semiconductor devices, can be directly converted into light. The heart of the LED is a semiconductor chip, one end of the chip attached to a bracket, one end is negative, the other end is connected to the power of the positive, so that the entire chip is encapsulated by epoxy resin. Semiconductor chip consists of two parts, part of the P-type semiconductor, which in its dominant position inside the hole, the other end is the N-type semiconductor, mainly electronic here. But when the two semiconductors are connected, they form a PN junction directly. When the current through the role of the wire in the form of energy, which is the principle of LED light. The wavelength of light is the color of light, which is determined by the material of the PN junction.
Light emitting diodes (LEDs) are made of Group III-IV compounds such as GaAs gallium arsenide, GaP gallium sulfide, GaAsP phosphorus gallium arsenide and the like, and the core is PN junction. As with ordinary diodes, there is a general PN junction of the one-way conductive characteristics, that is, forward, reverse cut and breakdown characteristics. In addition, under certain conditions, LED also has the characteristics of light. In addition, under certain conditions, LED also has light-emitting characteristics. At the forward bias voltage, electrons are injected from the N region into the P region, and the holes are injected into the N region from the P region. A fraction of the minority carriers entering the other region recombines with the majority carrier.
LED cabinet lighting design content and form of the main light, LED new light source to promote the design and development of lighting gradually reform, to a large extent changed the traditional concept of lighting, so that we from the traditional point, line light source limitations can be liberated Free to play and re-establish the language and concept of lighting design, lighting in the visual / perception and shape of the creative performance has a greater flexibility in the room lighting to more energy-efficient, healthy arts and the direction of human development.
(1) energy saving. LED is a cold light source and incandescent, fluorescent compared to its energy-saving efficiency can reach more than 80%. At the same brightness, its power consumption is only ordinary incandescent late fluorescent lamps and%. If you use LED to replace 50% of traditional lighting fixtures, the annual electricity savings in China is equivalent to a total generating capacity of the Three Gorges power station, the energy efficiency is very impressive.
(2) healthy. LED is a green light source. LED light DC drive without strobe; no infrared (IR) and ultraviolet (uV) components, no radiation pollution, high color and has a strong luminous direction; dimming performance, color temperature changes will not produce Visual error; cold light source heat is low, you can safely touch. It can provide a comfortable lighting space, but also very good to meet people's physical health needs, is to protect eyesight and environmental health light source.
(3) Artistic. Light color is the basic element of visual aesthetics, is an important means of beautifying the room. The choice of light source directly affects the artistic effect of lighting, LED in the light color display lighting art shows no unparalleled advantages. At present, the color LED products have covered the entire visible spectrum range, and the monochromaticity is good, the color purity is high, the combination of red, green and yellow LED makes the choice of color and grayscale have great flexibility.
(4) humanized. LED lighting small size, small quality, can choose different combinations of light color into a soft light of the various modules, installed in any position in the room, so the future of home lighting will not be limited to a single lamp, and will be a single lighting lighting conversion For the overall lighting effect, different light colors and brightness can have different effects on human physiology and psychology, and in many cases it may not need bright white light or other colors of light more suitable for physical and psychological needs.