An eye-protecting LED light source

Abstract

The invention discloses an eye-protecting LED light source, which comprises an LED bracket, a bowl, and a dispensing area. The bowl is arranged on the LED bracket, and a dispensing area is arranged inside the bowl. area, the crystal-fixing area is provided with LED chips, and the glue dispensing area is also covered with fluorescent glue, which completely wraps the LED chips, and the positive and negative poles of the LED bracket are connected by gold wires, which are characterized in that: The fluorescent glue is composed of fluorescent powder and silica gel, the ratio of the fluorescent powder to silica gel is 1:4, the fluorescent powder is 530nm green powder, 585nm yellow powder, 630nm red powder and 670nm red powder in mass ratio (14-18): (0.5‑1.5): (2‑4): (1‑3) mixture. The present invention minimizes the proportion of high-energy blue light, and basically does not change the proportion of beneficial blue light. At the same time, the CRI value is adjusted to more than 90, so that the color rendering of objects is more realistic, the restoration of irradiated objects is more realistic, and the eyes are more comfortable.

Description

technical field [0001] The invention relates to the field of LED manufacturing, in particular to an eye-protecting LED light source. Background technique [0002] Due to the rapid development of LED technology, new LED lighting sources are more and more used by people due to their energy saving, environmental protection, and durability, and are gradually replacing conventional lighting sources. But at the same time, the harm of LED light sources to the retina and the impact on the rhythm of biological daily life also remind us to clearly see the risks of LED lighting on human biological safety. [0003] Existing technical solution 1: Use high-energy blue light chips to excite phosphors, increase the CRI value, and achieve a high degree of color reproduction during actual irradiation. However, in order to improve the fidelity of color reproduction and light efficiency, a large proportion of high-energy blue light is used. However, high-energy blue light is the most harmful t...

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Problems solved by technology

But at the same time, the harm of LED light sources to the retina and the impact on the rhythm of biological daily life also remind us to clearly see the risks of LED lighting to human biological safety.

[0003] Existing technical solution 1: Use high-energy blue light chips to excite phosphors, increase the CRI value, and achieve a high degree of color reproduction during actual irradiation. However, in order to improve the fidelity of color reproduction and light efficiency, a large proportion of high-energy blue light is used. However, high-energy blue light is the most harmful to human eyes; technical solution two: use purple light chips to excite RGB phosphors, the blue light is relatively small, after proper adjustment, the CRI value is high, and the ultraviolet spectrum is introduced. At the same time, the cost is very high, and the market utilization rate is low; the third technical solution: OLED current injection type light-emitting display is used. Driven by the external voltage, holes and electrons are injected into the organic material from the positive and negative electrodes respectively, and the holes Meet and recombine with electrons in the organic layer, release energy, and transfer energy to molecules of organic light-emitting substances, causing them to transition from the ground state to the excited state. The excited state is very unstable, and the excited molecules return to the ground state from the excited state, radiating The phenomenon of luminescence occurs due to transition. This light source has low light efficiency and is easy to break. It is difficult to control during production. Due to its relatively large size, when using high-power lighting, the structure is greatly restricted, the defect rate is very high, the cost is expensive, and the life is short.

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