top of page
iLIGHTING GLOBAL ENTERPRISE CO., LIMITED
智 能 環 球 企 業 有 限 公 司
The company is also a strategic OEM/ODM partner of many organization-wide lighting brands. The company devotes herself in the development, manufacturing and marketing of green, low-carbon and energy-saving lighting products. With continuous investment on R&D .
Standard deviation of color matching(sdcm)
1 sdcm actually refers to the distance the measured value deviates from the target value.
2 If you want to indicate the sdcm of the measured value, you must provide the target value and calculation formula.
3 In an ellipse with a sdcm of 5, the sdcm of a point on the curve is 5. The color coordinates of all points in the circle are less than 5.
4 These ellipses can be expressed by certain equations.
5 IEC stipulates that the color coordinate of the lamp shall not deviate from the rated value (x, y) by 5 sdcm. That is to say, the color coordinates of the lamp should all be within the prescribed ellipse.
1 色容差(sdcm) 實際是指測量值偏離目標值的距離。
5 IEC 規定燈具的色坐標不得偏離額定值（x,y）5個sdcm。 也就是說，燈的色坐標都應該在規定的橢圓內
bottom of page