Difference between sunlight and artificial light

What is the difference between natural light and artificial light?


Natural light refers to sunlight that can be received outdoors.


Artificial light refers to the light emitted indoors from electronic devices such as light bulbs/lights, computers, and cell phones.



Natural light vs artificial light


A nanometer (nm) is a unit of measurement for the wavelength of light.


The light that can be seen is called visible light.

Light that is invisible to the eye is called invisible light.


Every color of natural light has a purpose and role.


Sunlight constantly fluctuates depending on the time of day, time of year, and location on Earth.


All of these changes and the harmony of light wavelengths play an important role in maintaining the circadian rhythm properly.

As you can see in the photo above,


During the day (noon), all wavelengths of light are highest. The reason is that this is the best time to be active and productive.


In the evening , as sunset approaches, the temperature of all light gradually decreases along with the intensity of blue light.


At night, until the invention of the light bulb in 1979, the only light source available to mankind was fire.


Red light (infrared ray), the main wavelength of fire, is a wavelength of light that minimizes inhibition of melatonin (sleep hormone) secretion and does not interfere with sleep.



However, as computers, smartphones, and indoor white lighting became popular,



Everything has changed .



Artificial light is light that is distorted and unbalanced when viewed from a natural perspective.


And distorted blue light, the main wavelength of artificial light, has a fatal effect on sleep .


All colors of light play a role in sending signals to the human body .

Blue Light - Awakening

Green Light - Activities

Yellow Light - Stable

Red Light Recovery



Blue light increases in the morning and afternoon when sunlight is the right time for us to concentrate and be active.


As the sunrise approaches, the blue light begins to gradually decrease, and as the sun sets, a change that is rarely seen is visible.


However, artificially looking at blue light at night tells the body that it is daytime, and this is an unsuitable wavelength for the night when one needs to relax.


In other words, blue light at night is no different from a stimulant that signals the body to be awake.


Blue light is not balanced with other colors of light ,

When exposed to nature in the evening , out of rhythm ,

This can have a detrimental effect on your health and sleep .

While sunlight varies in balance across the entire wavelength range, artificial light emits distorted wavelengths of light that do not change with time.


Everything in nature is in balance and harmony .


Living with distorted wavelengths of light and a biased perspective causes disease and pain.


During the day, indoor fluorescent lights emit excessive blue light, which is a major cause of chronic eye fatigue and lethargy.


Blue light emitted from cell phones and electronic devices at night is the cause of sleep disorders and insomnia.

However, in modern society, we cannot live without cell phones and fluorescent lights.


Lucid Eyes has developed day and night lenses to wisely protect unhealthy aspects while maintaining the convenience of modern life !

Day lenses block 100% of artificial blue light that causes retinal damage, vision loss, and macular disease, effectively protecting your eyes from artificial screen devices such as smartphones, computers, and TVs.

Night lenses block 100% of artificial blue light and green light that have a negative effect on sleep , promoting the secretion of sleep hormone (melatonin) for deep sleep and recovery. (How glasses work)

It's time to understand how much impact light has on our bodies.


A healthy life begins with creating a light environment.


Experience a new life with Lucid Eyes now ! 

Buy Lucid Eyes Glasses

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