How can “human-based lighting” help us improve?

Recently, micro-classroom published the article “From Lutron Mergers and Acquisitions KETRA to Talk about Natural Light, HCL, and Healthy Lighting” to brush up the circle of friends. With more than 2,600 words, I couldn't help but think about the chapter “Human Lighting”. In the book "Designing with Light," which was translated by Yun Zhiguang and the Translation Agency a few years ago, I was responsible for the "Humanistic Lighting" chapter in the "Light and Health" chapter. Topics are also discussed. So he went to read the pile of old papers, thinking of picking up some teeth, and doing some supplementary reading for the principal's article.

The concept of human illumination was first proposed by medical scientists in the 1970s, and was published by Stan Walerczyk (Stan Walczek) on July 7, 2012 in the Human Centric Lighting Society he founded. In the article "Introductory article on Human Centric Lighting", for the first time, the assumption of "human-based lighting" is systematic and theoretical (see above, the contents of the five small circles clockwise from 12 o'clock). The order is: circadian rhythm, mood, visual acuity, energy conservation and sustainability, productivity enhancement).

Since 2003, Stein has served as a principal in the "lighting wizards" service and currently serves as the principal's position. The Human Lighting Institute is the "secondary industry" he started in 2012. Over the past few years, the head of the bald head, who came out of Hawaii, gave a speech and peddled his theoretical hypothesis, replacing, expanding, and refining the five bubbles into six bubbles.

The picture above shows Varczek wearing his homeland iconic Hawaiian flower shirt to introduce his evolved theory of human illumination. Considering his name is garrulous and vivid, considering his name is garish and his bald head is vivid, we In the following, he honored him as the "Wai Stan Stewart" (I don't call "Standing Stein", respect and understanding, oh)

"Wizard Stan" himself once said in public that the "people-oriented lighting" can improve human health is a bold assumption. With this assumption, look for various examples and arguments to support the point of view. Can the tree of this theory be able to flourish, and whether it can yield fruit in the autumn? While we define and unfold some of the sub-concepts, we discuss them.

Next, while we define and unfold some of the sub-concepts, we discuss them.

Circadian Rhythms Physiological Rhythm:

Medically known as the Biological Rhythms biological rhythm, many functions of the human body operate cyclically. If sleep, it is a cycle of days. This is the so-called "circadian rhythm." There is a biological clock system in the body to keep these rhythms running, such as adjusting sleep, heart rate, blood pressure, body temperature and so on. The body's biological clock needs to be synchronized with the outside world. This synchronization process is called entrainment.

How did this happen?

In addition to rod and cone cells in the human eye, there is a third type of photoreceptor cells called autonomous photoreceptor ganglion cells (ipRGC). These "optical sensors," which are evenly distributed on the retina, seem to be unrelated to vision, but when stimulated by light they transmit non-visual information to the brain's main clock, the suprachiasmatic nucleus (SCN). Regulate and control all biological clock and hormone secretion. The peak response of autonomous photoreceptor ganglion cells is in the blue region of 460-480 nanometers (nm), including photopic and dark vision.

The information of autonomous photoreceptor ganglion cells has the strongest influence on the circadian rhythm. Insufficient daylight may disturb the body's biological clock. This is because there are three hormones that are particularly affected: The first hormone is serotonin, an emotional factor that causes our performance to peak for many times throughout the day—serotonin for many diseases such as depression and The regulation of anxiety is also very important; the second is melatonin, whose secretion will make us feel drowsy and slow down the body's function to sleep; the third is cortisol, which can participate in stress management and regulation. Blood pressure, glucose metabolism, and regulation of the immune system. Obviously, we need to keep our circadian rhythm entrainment.

Telling People: Artificial light emerged and even after large-scale use, it broke the balance of biological rhythms of “Sunrise and sunset and interest”, causing a series of physiological and psychological imbalances.

And how can “human-based lighting” help us improve?

It is not enough to simply receive the light. The time, duration, and wavelength of the light to receive the light are well-accepted for proper entrainment: the regulation of the suprachiasmatic nucleus seems to be in the morning with high brightness and short wavelength light (ie, Morning sun) to maintain, if there is no proper stimulation, the timing signal of hormone secretion will become asynchronous.

(The above content was obtained from the guidance and proofreading of a doctor of biology of an unnamed Chinese University of Medical Sciences)

From this we can see that with the light of "junk" and the light of "no humanity," it can be confirmed that there will only be slight effects on the human body, and more serious effects such as cancer will require a large number of clinical medicine verifications.

But many things people tend to explain with "metaphysics", such as "blood, blood, cold, wet" and so on of Chinese medicine, concept psychedelic + some mystery + some human beings whose IQ is not online, let me think that this world is a fool Too much, just throw a concept can have believers.

Such as "whether children can barefoot play"? This topic is reminiscent of traditional Chinese medicine concepts such as cold and imaginary, and then, after adding vinegar, many people can be taken care of.

â–² The above screenshot was taken from the micro-signal drpei@ Pediatric Surgeon Doctor

In fact, as long as the child does not feel cold and the ground is level and secure, he can rest assured that he can play with bare feet. There is no so-called cold intrusion problem.

And our wizard Washington, also in his theory, intentionally or unintentionally expanded the "human-based lighting" can improve the circadian rhythm, which attracted more people to eat the melon eye, expand their market.

We believe that it can play a positive role for the time being. Anyway, we still have to thank the leading scholars represented by the Washington Wizards for their theoretical contribution.

For these "bubbles", there have been excellent manufacturers in the industry to launch mature products, such as Thorne, launched C-VAS in 1988, later changed its name to Sensa, and evolved several generations of lighting control systems; for example, Galaxia There is also the Smart Cookie "smart cookie" product; for example, Philips, which published a 50-page white paper titled "City·people·light" in 2010, also contains such products and advanced concepts.

The implementation of products and technology solutions is not the focus of this article, but the purpose of each school is to achieve the same goal: to allow users to feel the comfortable and natural artificial light environment invisible while enjoying advanced technology and lower energy consumption. (The “energy-saving” bubble in the “human-based lighting” theory is cleverly matched).

A picture is worth a thousand words - the natural light's color temperature, luminous flux and other parameters change with changes in the environment, time, sensor technology and intelligent control blessing, allowing people to better let artificial light "return to humans."

Unfortunately, the names of such manufacturers and engineers are still in the engineer's thinking stage. The names are "Dynamic Light", "Smart Control", and so on. They are not integrated like the president of the Wizards Stan. Six bubbles and the idea of ​​"human-based lighting"

Here is a reaffirmation of the significance of sunlight (natural light): Human beings have evolved over millions of years, and the laws of daily life and body are deeply influenced by natural light. Edison's production of light bulbs has been more than a hundred years ago. Therefore, artificial lamps (light) must adapt to the human perception of sunlight and the basics, rather than put the cart before the end!

Reading the above chart shows that incandescent and halogen lamps have the best spectral range and fluorescent lamps are the most extreme. The color rendering index is one of the commonly used criteria for lighting the spectral quality and is not discussed here. LED can be superimposed by technology to achieve so-called "full-spectrum lighting."

The term full-spectrum illumination was first used by Dr. John Ott in the 1960s to describe electric light sources that were similar to natural light in the visible and ultraviolet spectrum. Since then, many luminaire manufacturers have developed various products to meet the various requirements of the full spectrum of advertising selling points, including better visibility, smaller color, reduce eye fatigue, improve mood, improve productivity, etc. to promote themselves High-end expensive lamps.

In full-spectrum lighting marketing, manufacturers claim that their light source is similar to or the same as daylight. The implication is that for those of us who know optics, these light sources produce a continuous spectrum of light that has no significant peaks or troughs in the spectral power distribution, and the color rendering is close to 100.

However, studies by institutions such as Rensselaer Polytechnic Institute Lighting Research Center, American Lighting Product Information Planning Committee (NLPIP) and National Research Council of Canada have confirmed that full-spectrum light sources do not provide the declared benefits. This is a bit embarrassing...

In summary, although the concept proposed by the Wizards-Stan Stan has been plagued with ingenuity, the concept of "human illumination" (hypothesis) itself is also an ability: it is as if "taking very unpredictable and unusual events, usually It will cause the market to react negatively or even to subvert it. This kind of obscure text simplifies into the "black swan event" (the swan was white before the first black swan appeared). In the coming period of time, the concept of “human-based lighting” will be the most appropriate entry point for the audience both inside and outside the industry to associate lighting with health.

"First light, then health." Just like "eat first, eat well later" is the stage of development that must be experienced. We believe that with the improvement of consumption upgrades and more and more advanced concepts are being perfected and accepted by the general public, the concept of "human lighting" and lighting The importance of design and the value of designers will be more respected and recognized. LED products will gradually get rid of the single "energy saving, cheap" impression. This year, Franck developed many brands and gave their own opinions and product solutions on major topics such as light and health, light and architecture. However, this road is heavy and far-reaching, and requires the joint efforts of both inside and outside the industry.

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