For the National 863 High-Tech Research and Development Program "LED Non-Visual Lighting Technology Research LED Polar Lighting Technology and System" Not long ago, Professor Hao Luoxi, Vice President of Shanghai Lighting Society and Professor of Visual and Lighting Art Research Center of Tongji University, went to Antarctica. Completed her research project in the 29th Antarctic expedition.
The Antarctic expedition team often chooses to leave around November, because the Antarctic is in the summer and is convenient for scientific expeditions. The light environment in the Great Wall Station is not ideal for the color temperature and illumination of the light source, and the Great Wall Station on King George Island is the first Antarctic research station established in China. Due to the inconvenience of material transportation, the lamps lack maintenance, and many of them are Aging and damage have occurred. To this end, Hao Luosi applied for the 863 subject on the polar light environment, and went to Antarctica to continue his research projects, and also brought his research results to the expedition team members.
Designing light environment to cure "crazy"
"After many years of evolution, the most healthy light source is of course natural light, but in the special environment of the Antarctic continent, we can use LED lights to simulate natural light." Hao Luosi said.
Traditional luminaires are difficult to achieve automatic control, and the spectrum is difficult to change. The advent of LED luminaires made it possible to simulate natural light. For the expedition members in the Antarctic, "appropriate changes in the light environment" are important conditions for maintaining physical and mental health. Hao Luosi said that there are no high-rise buildings, no cars, sparsely populated, and even the same layout in the house. The life time is long, and the expedition team members are easily caught in a monotonous "crazy" state. Through the change of color temperature and illuminance of the light source, the mood of the human body can be adjusted and the psychological state of the players can be improved.
The color temperature is a measure of the spectral energy distribution of the light source, which is what we usually call a cold and warm light source. A low color temperature indicates that the light color is warmer, and a higher color temperature indicates that the light color is colder. The Great Wall Station has always used a cool color light source with a higher color temperature. The cool color light gives a feeling of tranquility and elegance, but it also gives people a feeling of coldness and emptiness. Some of the expedition team members always said that they were cold outside the station and still cold in the station.
One of the important tasks of Hao Luoxi's trip to the Antarctic was to replace the lamps at the Great Wall Station. When the expedition members felt the warm light from the new lamps, they all said that they felt "very good."
Change color temperature sleep
People's sleep is closely related to light. According to Hao Luoxi, the pineal gland in the human brain has extraordinary functions. When it needs to go to sleep at night, it will secrete a large amount of melatonin. This hormone can inhibit the excitability of the human sympathetic nerves, lowering blood pressure and heartbeat. The rate slows down and the heart rests. However, melatonin is very "sensitive" to light. As long as the eye is stimulated by light, melatonin is ordered to reduce secretion by the pineal gland, so sleeping in the daytime or under the light is not as good as sleeping at night.
Knowing that light is related to melatonin that affects sleep, another problem that Hao Luoxi has to do is to find a light environment that has less effect on melatonin, thereby minimizing the inhibitory effect of indoor light environment on melatonin secretion. To make the expedition team have a good quality of sleep.
How does the relationship between the spectral energy distribution of the LED light source and melatonin secretion, Hao Luoxi has a preliminary theoretical support. She told reporters that from the domestic experiments, the high color temperature light source inhibits the secretion of melatonin, and the continuous illumination affects the cycle of daily melatonin secretion. In this regard, she needs to wait for the experimental samples of the Antarctic to return to China, and further verify the correctness of the theory in the polar expedition team members.
The Antarctic expedition team often chooses to leave around November, because the Antarctic is in the summer and is convenient for scientific expeditions. The light environment in the Great Wall Station is not ideal for the color temperature and illumination of the light source, and the Great Wall Station on King George Island is the first Antarctic research station established in China. Due to the inconvenience of material transportation, the lamps lack maintenance, and many of them are Aging and damage have occurred. To this end, Hao Luosi applied for the 863 subject on the polar light environment, and went to Antarctica to continue his research projects, and also brought his research results to the expedition team members.
Designing light environment to cure "crazy"
"After many years of evolution, the most healthy light source is of course natural light, but in the special environment of the Antarctic continent, we can use LED lights to simulate natural light." Hao Luosi said.
Traditional luminaires are difficult to achieve automatic control, and the spectrum is difficult to change. The advent of LED luminaires made it possible to simulate natural light. For the expedition members in the Antarctic, "appropriate changes in the light environment" are important conditions for maintaining physical and mental health. Hao Luosi said that there are no high-rise buildings, no cars, sparsely populated, and even the same layout in the house. The life time is long, and the expedition team members are easily caught in a monotonous "crazy" state. Through the change of color temperature and illuminance of the light source, the mood of the human body can be adjusted and the psychological state of the players can be improved.
The color temperature is a measure of the spectral energy distribution of the light source, which is what we usually call a cold and warm light source. A low color temperature indicates that the light color is warmer, and a higher color temperature indicates that the light color is colder. The Great Wall Station has always used a cool color light source with a higher color temperature. The cool color light gives a feeling of tranquility and elegance, but it also gives people a feeling of coldness and emptiness. Some of the expedition team members always said that they were cold outside the station and still cold in the station.
One of the important tasks of Hao Luoxi's trip to the Antarctic was to replace the lamps at the Great Wall Station. When the expedition members felt the warm light from the new lamps, they all said that they felt "very good."
Change color temperature sleep
People's sleep is closely related to light. According to Hao Luoxi, the pineal gland in the human brain has extraordinary functions. When it needs to go to sleep at night, it will secrete a large amount of melatonin. This hormone can inhibit the excitability of the human sympathetic nerves, lowering blood pressure and heartbeat. The rate slows down and the heart rests. However, melatonin is very "sensitive" to light. As long as the eye is stimulated by light, melatonin is ordered to reduce secretion by the pineal gland, so sleeping in the daytime or under the light is not as good as sleeping at night.
Knowing that light is related to melatonin that affects sleep, another problem that Hao Luoxi has to do is to find a light environment that has less effect on melatonin, thereby minimizing the inhibitory effect of indoor light environment on melatonin secretion. To make the expedition team have a good quality of sleep.
How does the relationship between the spectral energy distribution of the LED light source and melatonin secretion, Hao Luoxi has a preliminary theoretical support. She told reporters that from the domestic experiments, the high color temperature light source inhibits the secretion of melatonin, and the continuous illumination affects the cycle of daily melatonin secretion. In this regard, she needs to wait for the experimental samples of the Antarctic to return to China, and further verify the correctness of the theory in the polar expedition team members.
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