The optical performance of LED purification lamps mainly involves the performance requirements of brightness, spectrum and chromaticity. According to the new industry standard "Semiconductor Light Emitting Diode Test Method", there are mainly luminous peak wavelength, spectral radiation bandwidth, axial light intensity angle, luminous flux, radiant flux, light efficiency, chromaticity coordinates, correlated color temperature, color purity and dominant wavelength. parameters, such as the color rendering index. White LEDs are often used in LED purification lamps, and color temperature, color rendering index and illuminance are particularly important. It is an important indicator of lighting atmosphere and lighting effect, but generally does not require color purity and dominant wavelength.
The current mainstream practice in the LED industry is to package LED chips into light sources or light source modules, and then make light sources into lamps for light splitting. LED clean light This is the original traditional light source method, because the traditional light source emits 360° light. If you want to guide light to the application side, Philips' traditional lamps are currently the best, and the light loss can reach 40%. The optical parameters of lamps used by many domestic LED downstream manufacturers are actually the optical parameters of the chip or light source, not the overall optical parameters of the lamps.
How to better improve the light performance, the new technology in the world is to do light distribution on the chip package, output the light of the chip at one time, and maintain the max light output, so the light loss rate is only 5%-10%. With the continuous advancement of technology, the light loss rate will be lower and lower, and the light efficiency of the light source will be higher and higher. Lamps equipped with this kind of light source do not need to do light distribution, and the relative efficiency of lamps will be greatly improved, making them more widely used in functional lighting and forming a considerable market channel. Therefore, a good LED supplier is our top priority. We don't need to spend exorbitant prices to study how our LEDs are used for light distribution, nor do we need to spend a lot of time and experience getting engineers to use software simulations. The easy way is to get the LED white light supplier to cooperate. You know, if our engineers simulate in software, the necessary actions are inputs and outputs. The input is the previous data import, and the output is the simulation result, so the previous data must be accurate for the back-end simulation to be correct.
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