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With the continuous development of LED technology, white point light source LED has become one of the mainstream in the lighting industry. Manufacturing white lightPoint light source LEDThere are various methods, and below we will introduce several common ways to manufacture white light point source LEDs.

Blue light point source LED yellow fluorescent powder

This is one of the most common methods for manufacturing white light point source LEDs. By using a blue point light source LED chip as the base light source, and then adding yellow fluorescent powder around the blue LED chip, white light will be produced when the blue light excites the yellow fluorescent powder. The white LED produced by this method can regulate color temperature and is suitable for different lighting scenarios.

Blue light point source LED red green fluorescent powder

In addition to using yellow fluorescent powder, white point light source LEDs can also be manufactured by separating blue point light source LEDs from red green fluorescent powder. This method can adjust different proportions of red and green phosphors to achieve the desired white light color temperature effect.

RGB Tri color Mixing

Another approach is to use red, green, and blue LED chips to stop the mixed emission of light. By controlling the brightness and color ratio of three types of LEDs, a relatively pure white light can be achieved, while also achieving the effect of adjusting color temperature.

Phosphor method

The phosphor method is a method of producing white light by exciting yellow phosphors with blue light. Unlike phosphors, phosphors do not directly emit light to produce white light, but rather emit light after being excited. This method can produce a more even and gentle white light effect.

Mixing of multiple color LEDs

In addition to the above methods, more color LED chips can be used to stop mixing, such as blue LED, green LED, and red LED, to achieve richer color expression and higher color restoration index.

summary

The methods mentioned above are common techniques for manufacturing white light point source LEDs. It is crucial to choose the appropriate manufacturing method based on different application scenarios and product requirements. The technology for manufacturing white LED is constantly improving and perfecting, whether it is through the excitation of fluorescent powder, the mixing of RGB three primary colors, the phosphor method, or the mixing of multiple color LEDs. The application prospects of white LED will become even broader in the future. As an important component of the LED lighting industry, white LED will continue to play a significant role in indoor lighting, outdoor lighting, automotive lighting, and other fields.