Speaking of LED lighting, have to mention the professional key words, light performance, thermal properties, electrical properties. These in the end? Why is the LED lighting had to master the technology? Xiaobian quickly took a look at it!
Optical performance (with light): LED optical performance is mainly related to the performance requirements of the spectrum, luminosity and chroma. According to new industry standards set by the semiconductor light-emitting diode test method \", the main luminescence peak wavelength, spectral radiation bandwidth, axial light-emitting angle intensity, luminous flux, radiant flux, luminous efficiency, chromaticity coordinates, color temperature, color purity and the main wavelength, the color rendering index. Display the LED mainly visual and intuitive effect, therefore the relevant color index does not make the requirements, but the lighting of the white light the LED, color temperature, color rendering index and illumination on the particularly important, an important indicator of lighting atmosphere and the effect of, rather color purity and dominant wavelength is generally not required.
The thermal properties (structure): the lighting of the LED luminous efficiency and power is one of the keys of the LED industry, in the meantime, LED PN junction temperature and shell heat issues is particularly important. PN junction, the greater the temperature difference of temperature and light body, then the thermal resistance of the greater, followed by light can be converted into heat energy consumed in vain, and in severe damage to the LED. A good structural engineer must consider not only the structure of the lamp and LED thermal resistance, but also consider the shape of the lamp is reasonable, fashion, new, of course, reliability and maintainability, as well as practicality, that is, to stand designers perspective to think about, but also from the user point of view to consider the products.
The electrical properties (electronic): If a lighting metaphor of a young girl, then with just her content, the structure is her looks, electronics is her heart. (Catches the eye always looks beautiful, fashion beauties, the product is also true). There is no heart there is no life, lighting electronics is not a power, a good drive power to determine a product\\ s life. Electronic standards and parameters are often much more complex than the structure of the early R & D effort into. Current technology trends and updated with each passing day, one day a kind ... the engineers have to spend a lot of energy to learn, absorption, decomposition, application of new technologies. The electronic design of the pre-planned, mid-term implementation, the latter part of molding the entire process need to document the formation of the data in the design of the most tedious things. For example: a pre-program a power supply design, pr oduct descriptions, standards basis, the basis of the safety requirements, electrical performance expectations, technology requirements, raw material evaluation, test methods, and so must form a system file ...
After the introduction of the above, we have a certain understanding of the technology of LED lighting. Only mastered these key core technology of LED lighting can be developed in order to go farther and farther!
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