What is SDCM?

Color tolerance SDCM refers to the difference in color between different beams emitted by the same color light source within the color range perceived by the human eye, usually expressed by numerical values, also known as color difference. Color tolerance SDCM is one of the important indicators to measure the color consistency of LED lighting products. In LED lighting applications, the size of the color tolerance SDCM directly affects the quality and stability of the lighting effect.

The calculation method of color tolerance SDCM is to convert the coordinate difference between the tested light source and the standard light source to the SDCM value according to the CIE 1931 chromaticity diagram. The smaller the SDCM value, the better the color consistency, and the greater the color difference. Under normal circumstances, products with SDCM values within 3 are considered to be products with good color consistency, while those greater than 3 need to be further improved.

In LED lighting applications, color consistency has an important impact on the stability and comfort of the lighting effect. If the color consistency of LED lighting products is poor, the color of different areas in the same scene will be significantly different, affecting the user’s visual experience. At the same time, products with poor color consistency may also cause problems such as visual fatigue and color distortion.

In order to improve the color consistency of LED lighting products, it is necessary to start from many aspects. First of all, the quality of the LED chip needs to be strictly controlled to ensure the color consistency of the LED chip. Secondly, strict quality control is required for LED lighting products to ensure that the color consistency of each product is the same. Finally, the LED lighting system needs to be debugged and optimized to ensure color consistency between various light sources.

In short, color tolerance SDCM is one of the important indicators to measure the color consistency of LED lighting products, which plays an important role in improving the quality and stability of the lighting effect of LED lighting products. To improve the color consistency of LED lighting products, it is necessary to start from many aspects to ensure that the quality of LED chips, the quality of LED lighting products and the debugging of LED lighting systems meet the standard.