April 24th marks the 9th "Chinese Space Day" in China. At this very moment, at an orbital altitude of 390 kilometers above the ground, our "Tiangong" space station is passing overhead at a speed of once every 90 minutes around the Earth, giving our gaze at the starry sky a different meaning, filled with concern and pride.

However, few people are aware that Chinese astronauts aboard the Tiangong space station experience 16 sunrises and sunsets each day. In such extreme conditions, how do the astronauts solve the lighting issue for their 180-day stay inside the space station? What is the difference between the lighting equipment used by astronauts in space and what we ordinary people use at home? If it is a unique solution of China's cutting-edge aerospace technology, then what changes will such technology bring to commercial and civilian lighting?

The answers to these questions have refreshed my traditional understanding of the lighting industry and the current development of technology, and are about to change every beam of light in our future life.

The reason for all this is the Symbiotic Adaptable Light Technology launched by the Opple Lighting Chinese Aerospace Lighting Laboratory. This technology has brought aerospace lighting technology into thousands of households and has also opened a new era of lighting.

From light to healthy lighting, it is the exploration and release of value.

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"God said, 'Let there be light,' and there was light."

What is light? The Book of Genesis in the Bible records that light is the creation of God on the first day of creation, which separated day from night, and then there were heaven and earth, all things and people. The growth of all animals and plants cannot be separated from the role of light, which is described in the classics and is also a fact.

Modern science tells us that light is essentially a series of electromagnetic waves of different wavelengths produced by thermal radiation. Electromagnetic waves with wavelengths between 380 nanometers and 780 nanometers are the visible light that the human eye can see. From violet light to red light, the wavelengths increase in order, the frequencies decrease in order, and the color temperatures decrease in order, forming a continuous spectrum. Different lights can have different effects on people's physiology and psychology. It is a recognized fact that 83% of the information humans obtain from the outside world comes from the vision brought by visible light, and light is also one of the three essential conditions for life and health (sunlight, air, water).What is lighting? In simple terms, it is the situation where humans have freed themselves from passively relying on natural light and have achieved the ability to actively use and control light sources. The history of the development of lighting technology is also a history of the survival and development of human society: from the era of natural light in primitive society to the lighting obtained by burning grass and wood, and then to the lighting obtained by fossil fuels, from the incandescent lamp of thermal radiation light source to the fluorescent lamp of gas discharge, and to the current rapid development of LED that has emerged in a short time.

In the development process of lighting, the value of light to people is also continuously enhanced: the luminous efficiency is getting higher and higher, the cost of acquisition is getting lower and lower, the convenience and controllability of use are getting stronger and stronger, and lighting technology has entered into a comprehensive impact on human physical and mental health from the simple visual lighting.

What is healthy light? In a word, the unity of heaven and man, the resonance of light waves and the human body.

For humans and natural organisms, natural light is undoubtedly the healthiest light. During the millions of years of evolution, humans have long been accustomed to the exposure of the solar spectrum, and the adaptation and dependence on sunlight are imprinted in the genes, forming our inherent physiological rhythm. For example, the color temperature of the light at sunrise is relatively low, about 2000-3500K, the color temperature rises to 4000-4500K in the early morning, and it will reach more than 5000K at noon (some high-latitude countries can even reach 8000K), and the color temperature will drop to similar levels as the morning and sunrise in the evening and at sunset. Under the appropriate lighting, doing the appropriate things, the eyes and body will be in the most appropriate healthy state, achieving a high degree of harmony between man and nature.

But it is particularly important to emphasize here that natural light is not equivalent to sunlight, but the sunlight after scattering and reflection by the sky and clouds, absorption by water molecules, and reflection by the ground environment such as plants and buildings, and finally entering our eyes is natural light. Natural light changes dynamically with time, place, and environment, and is difficult to capture and replicate.

And the solar spectrum is fixed and continuous, almost unchanged since ancient times. For the lighting industry, to truly replicate sunlight and dynamically restore natural light, it was previously a costly and uncertain thing.

From the battle of parameters to the return to human nature, true healthy lighting illuminates vision, physiology, and emotions.

Master of the mind, Wang Yangming, has a famous saying: "When you have not seen this flower, this flower and your heart are both in silence. When you come to see this flower, the color of this flower will suddenly become clear."Ancient people pointed out a new direction for modern lighting science in terms of concept, that is, humans are the subject of illumination. In other words, light does not illuminate the environment, but the sensory experience of people. Only when light is reflected from the environment into the eyes of the observer does the initial mission of lighting come to fruition, and the existence of light and the environment becomes meaningful. Light allows the world to be seen by people, and the existence of the world thus gains significance. Therefore, health must first meet the visual health needs of people.

No blue light, no flicker, non-injury to the eyes, and high color rendering index are only the most basic and lowest threshold requirements.

In accordance with the regular curve, let the eyes feel the same under artificial light sources as under natural light, which can be considered as healthy lighting for vision.

Secondly, light not only acts on vision but also has an undeniable impact on people's physiology and emotions. In 2002, scientists discovered a third type of photoreceptor cell in the eyes that is directly related to health, the intrinsically photosensitive retinal ganglion cells, abbreviated as ipRGCs, commonly known as melanopsin cells. It is they who dominate the non-visual pathway of the eyes, determine the secretion of melatonin in the brain, and thus affect our sleep and wakefulness. Moreover, melanopsin cells also affect our emotional regulation and cognitive functions, which are crucial for both physiological and emotional health.

Industry experts have found that low color temperature warm light makes people feel warm and comfortable, which is conducive to physical and mental relaxation. Neutral light has a soft light, giving people a natural, comfortable, and pleasant feeling. High color temperature cold light gives people a serious and cool feeling, which can improve the excitement of the brain, focus attention, enhance alertness and wakefulness, and is conducive to certain intense mental activities and exercise.

When the body is tired or needs rest, high color temperature light is obviously not favorable because it inhibits the production of melatonin, stimulates the brain, has a negative effect on sleep, and more seriously, it can even become a cause of anxiety, insomnia, and other diseases. Lower color temperature helps the secretion of melatonin, relaxes people, helps the body enter deep sleep, and obtains good functional recovery. This study shows that the physiological rhythm of the human body highly matches the rhythm of natural light changes, and healthy lighting must also be healthy in lighting physiology and emotions.

Looking back at the various lighting manufacturers in the current market, focusing on simulating sunlight, replicating fixed natural light, or fighting price wars when they cannot even meet the standards of healthy vision, is this the healthy lighting we want? Is it really in line with people-oriented value needs to serve parameters alone?NVC Lighting CEO Lin Liangqi believes: Whether the light is bright, whether the price is expensive, whether the appearance is good, and whether the technical parameters sound impressive have always been the main considerations for merchants to guide and consumers to make choices. There is a certain reason for this, but blindly rolling parameters and prices will inevitably deviate from the core value of lighting, causing the industry to fall into a red ocean, and the user value and experience are damaged.

Starting from the underlying technology, returning to humanism, choosing to meet the real needs of the human body with appropriate costs, and providing solutions centered on people around the three dimensions of vision, physiology, and emotion, always maintaining concern for the user's entire life cycle is the true meaning of healthy lighting. This is also the inspiration of aerospace lighting technology for civilian lighting.

From the development of underlying technology to open and independent innovation, NVC Lighting realizes arbitrary cutting of light waves.

After 26 years of technology and market accumulation, NVC Lighting, in conjunction with aerospace technology and top lighting design masters from all walks of life, has conducted in-depth research on natural light, and launched the first domestic and internationally leading symbiotic and suitable light technology, and based on this, found the most suitable natural light for human health - Clockwhite and MoodSwitch.

The former is a high-quality wide-area white light that matches the blackbody sunlight curve, which is more in line with human physiological rhythms and belongs to high-quality rhythmic light, providing assistance in illuminating the value of healthy physiology; the latter is a soft and comfortable light natural light, which is more suitable for emotional atmosphere adjustment and can meet different scene experiences, providing assistance in illuminating the value of healthy emotions.

"Symbiotic and suitable light technology" is not an empty concept. Unlike most lighting companies that mainly rely on the model of LED and electronic component suppliers, NVC Lighting goes deeper and further in the development of underlying technology. In addition to focusing on the design and development of the lighting and electrical system, strictly selecting the materials of the beads, it also starts from the analysis of the spectrum, considering the combination of fluorescent powders, and innovating and customizing in conjunction with the LED chip, while continuously researching user color preferences and psychology, and researching control module protocols and mixing algorithms. The color technology of neon light and curve fitting technology are two unique underlying technologies of NVC Lighting's independent innovation.

Based on LED spectral technology, it redefines the three basic colors of healthy lighting - bonfire red, bud green, and clear sky blue, and through the mixing algorithm, it can achieve countless spectral combinations.

Fudan University Professor, Doctoral Supervisor, and Healthy Lighting Expert Dai Qi said: "Spectral optimization is the cornerstone of further progress in lighting technology. Only by mastering this algorithm technology can we accurately achieve the 'intelligent cutting' of light like a tailor, meet the scene innovation design under different lighting needs, and achieve high-quality and efficient healthy rhythmic lighting."Vice President of R&D at Opple Lighting, Wang Hongbo, mentioned: "Companion Sui Ran Light achieves complex functions in a simple way, which is the natural light that harmoniously adapts to people and nature, and has unlimited imagination space. In nature, light is just right for people, not all light is the same, and not all lighting is a healthy cause. Companion Sui Ran Light is a dynamic healthy light technology we have developed based on the needs of healthy lighting, which will help us usher in a new era of healthy light environment.

Yes, truly healthy and suitable light is an astonishing creation, a wonderful blend, and an excellent tailoring, which is a masterpiece of the intersection of technology and humanities.

The mysterious double-slit interference experiment shows that light is a particle, a wave, and a spiritual spirit. The harmonious coexistence of people and light is the pursuit of health and quality of life, and it is also the exploration of the endless aesthetics of life. And Opple Lighting's redefinition of the value of light, and the breakthrough in intelligent, personalized, and environmentally friendly lighting technology, is becoming a model of new social productive forces, leading the industry to create a new era of Chinese lighting.