Color-temperature-adjustable high-color-rendering light source module

Abstract

The invention discloses a color-temperature-adjustable high-color-rendering light source module, which comprises a base plate and an LED (light emitting diode) chip, wherein a solid crystal region and public circuits are arranged on the base plate, and the LED chip is fixedly arranged on the solid crystal region and is connected with the public circuits. The high-color-rendering light source module is characterized in that the solid crystal region is divided into at least two integral regions, the public circuits are integral metal plates and are in corresponding arrangement with the integral regions, the two adjacent public circuits are mutually insulated and have opposite electrodes, and the LED chip is connected onto the two adjacent public circuits. A fluorescent powder layer is arranged on the solid crystal region and is divided into at least one cold color temperature high-color-rendering light source region and at least one warm high-color-rendering light source region, according to the color addition principle, colors of two kinds or several kinds are added according to different distribution proportions, and an intermediate color is obtained. The light source color temperature regulation is realized through regulating and controlling the current of the cold color temperature high-color-rendering light source region and the warm high-color-rendering light source region, and the finally desired high-quality white light after the mixing of light sources at each color temperature section is realized.

Description

technical field [0001] The invention relates to the technical field of LED packaging, in particular to a high color rendering light source module with adjustable color temperature. Background technique [0002] As a new type of light source, LED has the characteristics of environmental protection and energy saving, high brightness, long life, fast start-up speed, and high chroma. It is widely used in outdoor advertising displays, indoor lighting, decorative lights, and emergency lights. [0003] As the performance and efficiency of LED solid-state lighting technology continues to surpass traditional lighting technology, this new technology has been widely used. LED lighting fixtures can not only replace white light lighting, but also realize new functions, and these functions are difficult to achieve with traditional lighting technology, such as changing the environment by adjusting the color temperature of white light to meet the needs of various places in different seasons...

AI Technical Summary

Problems solved by technology

Therefore, the device must use a combination of red, green, blue and amber or red, green, amber and natural white light, and need to supply power to multiple chips (three or more), the driving circuit is complex, and various The aging attenuation of the chip is inconsistent, and long-term work will cause the color temperature to shift, such as figure 1 As shown, 1 is the substrate, 2, 3, 4, 5 are red, green, blue and amber LED chips respectively

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