A LED light source based on violet light chip excitation for reducing blue light hazards

Abstract

The invention discloses an LED light source for reducing the harm of blue light based on violet light chip excitation, which includes a lead frame, the inner surface of the lead frame is coated with a silver-plated layer, and the inner bottom end of the lead frame frame is provided with a violet light chip. And the inside of the lead bracket is filled with fluorescent glue, and the inside of the lead bracket bracket is coated with a vulcanization liquid layer on both sides and the bottom surface of the fluorescent glue; the present invention is based on a purple light chip excitation LED light source for reducing blue light hazards When the LED light source emits light, it can make the light source produce a continuous spectrum close to natural light, the spectrum is full, the color of the light source is soft, and the proportion of short-wave high-energy blue light of the LED light source is less than 50%, and the short-wave blue light is reduced through scientific spectrum adjustment. Play the role of protecting the eyes, while increasing long-wave blue light, effectively relieve visual fatigue, and keep people awake and alert. The entire LED light source has the characteristics of high color rendering, high color fidelity and high color saturation.

Description

technical field [0001] The invention belongs to the technical field of lighting, and in particular relates to an LED light source, and more specifically to an LED light source for reducing the harm of blue light based on violet light chip excitation. Background technique [0002] With the deepening of people's research on semiconductor light-emitting materials, the continuous progress of LED manufacturing technology and the development and application of new materials, breakthroughs have been made in ultra-high brightness LEDs of various colors, and their luminous efficiency has increased by nearly 1000 times. In terms of brightness, all colors in the visible light band have been realized, the most important of which is the emergence of ultra-high brightness white LEDs, making it possible for LED applications to leapfrog to the high-efficiency lighting source market, but there are still certain deficiencies in the use of LED light sources. It is believed that there will be f...

AI Technical Summary

Problems solved by technology

[0003] At present, the most common LED light source is to use the blue light emitted by the blue chip to excite the phosphor powder to emit yellow-green light or yellow-green, red light, and then mix with the remaining blue light of the chip to form white light. There will be a blue light peak below 500nm in the spectrum, usually at 445-455nm. Considerable power intensity, due to the high-energy blue light spectrum range of 415-455nm, such a light-emitting mechanism hides the problem of eye hazards. The traditional method is to reduce the color temperature of the light source. Although the blue light radiation energy of the low-color-temperature white LED light-emitting mechanism is very low, The harm of blue light is very small, but the color temperature is too low, the color temperature is too low, it will cause inattention, fatigue and sleepiness

Images