Method for producing high-quality light

A method for producing high-quality light, comprising steps of:

• (1) providing a plurality of lighting devices, and driving the lighting devices to emit a plurality of color lights;
• (2) verifying corresponding CIE coordinates of each of the color lights on a CIE 1931 color space chromaticity diagram, and then determining whether the CIE coordinates of the color lights enclose a Planckian Curve on the CIE 1931 color space chromaticity diagram;
• if yes, proceeding to step (3);
• otherwise, proceeding back to the step (1);
• (3) mixing the color lights to a mixed light having a specific CIE coordinate on the CIE 1931 color space chromaticity diagram;
• (4) determining whether the specific CIE coordinate of the mixed light positions above the Planckian Curve;
• if yes, proceeding to step (6);
• otherwise, proceeding to step (5);
• (5) driving the plurality of lighting devices to emit the color lights and simultaneously modulating corresponding light intensities of at least one of the color lights, and then proceeding back to the step (3);
• and
• (6) processing or integrating the plurality of lighting devices to a lighting unit or a lighting module, wherein the lighting unit or the lighting module is able to emit a high-quality light.