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Comfortable and healthy into new consumer demand, LED lighting industry ushers in the era of healthy lighting
Sep 17, 2018

In October of this year, Guoxing Optoelectronics launched the Eyelove health lighting device products, including the DL natural light series and the EC healthy light series, which became the main force in the domestic health lighting market. Looking at the international market, Seoul Semiconductor, Philips, GE and other international lighting manufacturers have introduced corresponding health lighting products in the past or recently. With the continuous improvement of technology, LED manufacturers' pursuit of lighting trends has gradually changed from high light efficiency and long life to the current high-quality and healthier lighting products.

Natural light full spectrum LED into a new trend in lighting development

Comfortable and healthy lighting is a new demand for consumption. What kind of light source is a comfortable and healthy light source? Human beings have lived on Earth for millions of years and are constantly evolving with changes in living environment, but the only constant is the sun. Light dependence and adaptation. Therefore, it can be considered that natural light or sunlight is the most comfortable and healthy light source for human beings. Therefore, when manufacturers introduce health lighting products, they will almost always use the sun as a benchmark, which is similar to sunlight and even better than sunlight.

The spectrum of sunlight includes spectral curves of ultraviolet light, visible light, and infrared light, which can be called full spectrum. The natural light full spectrum LED light source means that the proportion of each band in the visible light portion of the LED light source is similar to that of sunlight, and the color rendering index is close to 100. The traditional LED light source, the main mode of illumination is about 450nm wavelength, the blue chip excites the phosphor to form white light, which causes the blue radiation to be too heavy, and lacks some blue-green and deep red light, especially some inferior light source products, which easily lead to vision. Eye diseases of varying degrees such as decline, cataract, and blindness. Therefore, high-quality natural light full spectrum LED light source has become a new trend in the development of healthy and comfortable lighting.

indoor lighting

Violet chip + phosphor technology route is more suitable for healthy lighting

The current LED full-spectrum light source mainly has two solutions. One is a method of exciting the phosphor by a 450-460 nm blue chip. Ra can improve the color rendering index and light efficiency by improving the phosphor, and Ra can reach 97 or more, but still exhibits higher performance. The blue peak of intensity is only that the coverage band of the phosphor is wider than ordinary LED to improve Ra and R9, the continuity of the spectrum is not perfect, and the intensity ratio of each band is very different from that of solar energy. Therefore, the advantage of this solution for health lighting is not obvious, it is mainly used in commercial lighting, and the high color rendering index is its main advantage.

Another solution is to excite RGB multi-color phosphors with a violet chip to achieve a continuous spectrum, unlike the lack of blue-green and deep red coverage like two-color phosphors. The light source of this scheme maximizes the proximity to the solar spectrum, achieving high reduction, high saturation, and avoiding the appearance of short-wave blue light. Although the light effect will be sacrificed, there is room for improvement.

Guoxing Optoelectronics leads the domestic health lighting market

The DL natural light series of Guoxing Optoelectronics' healthy lighting source adopts the purple light chip to stimulate the phosphor solution, which is closer to the solar spectrum. The comfort level of the human eye is greatly improved compared with the use of general LED light source, and the regulation of human circadian rhythm is adopted. Have a more positive effect.

Eyelove health lighting source DL natural light series mainly contains three specifications, 3528, 4014 and 3030, short wave (415-460nm) low blue, effectively reducing the harm of blue light to the retina; better spectrum, color fidelity index, color saturation High, light color quality is significantly improved.

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