Wide-color-gamut dimming and light mixing method and atmosphere lamp

Abstract

The invention relates to a brand-new wide-color-gamut dimming and light mixing method and an atmosphere lamp. The method comprises the steps that a user provides target brightness and chromaticity (color or color temperature) parameters, a color gamut is divided by five kinds of light of red, green, blue, cold white and warm white (RGBCW) in the light mixing design, corresponding light mixing light sources are determined according to the color separation gamut where target light color coordinates are located, and the light mixing design is finally completed according to the Grassmann color mixing law. The method has the advantages that cold white light and warm white light are added on the basis of RGB light mixing, spectrum is continuous, gaps among color bands are reduced, color mixing uniformity and color rendering are improved, and the method is closer to natural light. Based on the established dimming and light mixing model, it can be achieved that the light intensity parameter value is not changed basically when the color temperature is adjusted, the color coordinate is not changed when the light intensity is adjusted, and color distortion is not caused when the color is adjusted.

Description

technical field [0001] The invention relates to the lighting field, in particular to a wide color gamut light adjusting and mixing method and an ambient light. Background technique [0002] Vision is an important means for human beings to perceive the world. The quality of lighting will directly affect people's quality of life and physical and mental health. With the development and progress of society, people's demand for lighting has increased from the pursuit of illuminance in the past to the emphasis on light color and comfort. Comprehensive factors including photopsychological and photophysiological effects such as photobiological safety. [0003] In solid-state lighting or LED display applications, some occasions require the light source to have the characteristics of adjustable color or color temperature. The traditional method is usually to use red, green and blue mixed light, or four kinds of red, green, blue and white LEDs to mix light. Taking the mixture of red, ...

AI Technical Summary

Problems solved by technology

Taking red, green and blue as an example, by changing the ratio of each color, although the color temperature can be changed, but because of its single spectral component, the color rendering of the light is low when displaying white light (CRI=20~60), and the display When the color is unsaturated, the spectral components are single, and it is impossible to achieve a soft transition from white light to colored light

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