LED light source effective 'photoelectric technology parameters

According to the actual situation, we could use a variety of solutions for effective testing, you can through professional high-power LED testing machine for automatic step, high efficiency, fast speed, can be done for each single LED spectral color separation a from the measured voltage to the leakage current to the luminous flux to the spectrum of multi-channel process coordinated controls the quality of a lot of artificial and step.

　　1. Flux along the luminous flux value is an indicator of LED users are very concerned about, LED application client must want to know what they are using the LED luminous flux in which range, so as to ensure that their products brightness uniformity and consistency.

　　2. Reverse leakage current test in reverse leakage current, load under a certain voltage is lower than the required value, the production process caused by static electricity, the chip quality factors such as the LED reverse leakage flow is high, this will give great hidden trap LED application products, in use after a period of time is very easy to cause the LED lamp to death.

　　3. Forward voltage test of the forward voltage range should be within the scope of the circuit design of the license, many clients design drive light-emitting tube light with battery voltage mode, forward voltage size will directly affect the whole circuit parameters, which can bring hidden trouble to the product quality. In addition, for some of the circuit power consumption have requirement of products, wants to ensure that the same luminous efficiency under the lower forward voltage, the better.

　　4. Relative to divide class color temperature for white LED color temperature is its color industry in more of a parameter, this parameter can be directly presented LED color slants warm or cold or white.

　　5. Chromaticity coordinates x, y step for white or monochromatic light can be coloring product parameters which color to express the LED area, generally require 4 x, y, define a chromaticity areas. Must pass a certain test methods to ensure the LED whether fall of 4 x required, y chromaticity area.

　　6. Dominant wavelength step for monochromatic light LED, dominant wavelength is one of the important indicators to measure its color parameters, dominant wavelength directly reflect the human eye visual perception of the LED light.

　　7. Color rendering index step color rendering index closed S directly to the light to the object on the degree of color change, this parameter is very important for LED lighting products.

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