LED light source effective photoelectric technology parameters

According to the actual situation, we can use a variety of solutions to effectively split the color, can be automatically divided by a professional high-power LED spectrophotometer color separation machine, high efficiency, speed, can be achieved for each LED split light a This is a large amount of manual coordination from the measured voltage to the leakage current to the luminous flux to the spectral multi-channel process for quality control and binning.

1. Luminous flux binning: Luminous flux value is an indicator that LED users are very concerned about. LED application customers must know which range of LED luminous flux they are using in order to ensure the uniformity and consistency of their own product brightness.

2. Reverse leakage current test: The reverse leakage current is lower than the required value when loaded with a certain voltage. In the production process, due to static electricity, chip quality and other factors, the LED reverse leakage current is too high, which will bury the LED application product. Under the great hidden dangers, it is easy to cause LED dead lights after using for a period of time.

3. Forward voltage test: The range of forward voltage needs to be within the allowable range of circuit design. Many customers design the LED to light up. The forward voltage directly affects the change of the overall circuit parameters, which will give Product quality brings hidden dangers. In addition, for products where the power consumption of some circuits is required, it is desirable to ensure that the forward voltage at the same luminous efficiency is as low as possible.

4. Relative color temperature binning: For a white LED color temperature is a parameter used to characterize its color industry, this parameter can directly show whether the LED color is warm or cold or white.

5. Chromaticity coordinates x, y bin: For white light or monochromatic light, the chromaticity parameter can be used to express which color region the LED is in. Generally, four points x and y are required to define a chromaticity region. Must pass a certain test means to ensure that the LED actually falls within the required four-point x, y color area.

6. Main wavelength bin: For monochromatic LEDs, the dominant wavelength is an important measure of its color parameters, and the main wavelength directly reflects the human eye's visual perception of the LED's light.

7. Color rendering index bin: The color rendering index is directly related to the degree of discoloration of the object irradiated by light to the light. This parameter is very important for LED lighting products.