With the maturity of LED technology, led research and development has become the mainstream direction of lighting design. The knowledge of LED lighting is an indispensable part of knowledge.
I. COLOUR AND TECHNOLOGY
The led tri-element luminescent tube is due to the use of gallium, arsenic and phosphorus in the manufacturing process. GaN (GaN) led, GaP green LED and GaAs infrared LED are called elemental light emitting tubes. At present, the latest LED process is to mix four elements of aluminum (Al), calcium (Ca), indium (In) and nitrogen (N) to form a four-element material led, which includes all visible and part of the ultraviolet spectrum.
2. Luminescence intensity
The units to measure the luminous intensity of LED lighting lamps are illumination unit, luminous flux unit and luminous intensity unit.
3. Luminescent Life
For the life of LED lighting fixtures, the general manufacturers will mark more than 100,000 hours. Nevertheless, don't forget the brightness attenuation period of led, which has a lot to do with the material technology. If economic conditions permit, it is suggested to select four elements led with slow brightness attenuation.
IV. Colour Matching and White Balance
As we all know, white is made up of red, green and blue in proportion to brightness. When the brightness of green is 69%, the brightness of red is 21%, and the brightness of blue is 10%, the human eye will feel white for this color mixing. However, the red, green and blue color coordinates of LED can not achieve the full chromatographic effect due to the process and other factors. Before color matching for full-color LED display, in order to achieve the best brightness and the lowest cost, we should try to select the constituent pixels whose luminous intensity is about 3:6:1 ratio of the three primary colors.
Five, advantages
The cups of LED lighting fixtures are all imported components, which are novel in design, energy-saving and power-saving. They are also very convenient to use. They are not easy to cause leakage accidents and have a long service life. At present, LED lamps have become the most environmentally friendly and energy-saving lighting source in modern times. Compared with incandescent lamps, each LED lamp can save about 101.52 degrees of electricity per year.