Night Coat
We are surrounded by various kinds of blue light, even when we go to bed.
A key factor in how human sleep is regulated is determined by exposure to light or darkness. Exposure to light stimulates a nerve pathway from the retina in the eye to to an area of the brain called the hypothalamus.
When it starts to get dark outside, the hypothalamus signals to the body that it’s time to start producing sleep hormones like melatonin and reduce body temperature to prepare for sleep.
Research has indicated that exposure to certain types of blue light, emitted by electronic devices, suppresses the production of melatonin more than any other source of light.
Tokai Night Coat, NTC coating, cuts out specific areas of blue light at around 480nm, which aids a better night’s sleep.
If you often use electronic devices at night, or right before trying to fall asleep, then Tokai night coat is for you.
"Feel yourself wake up when exposed to sunlight in the morning", "Hard to sleep after being in a room with strong, bright light.”
"Do You have these experiences?”
1.The "light", meaning blue light, plays an important role in activating the brain and preparing your body to fall asleep.
2. By using NTC coating, you can regulate your sleep patterns- keeping you healthy.
The relation between using smartphones and the quality of sleep.
Just like the exposure to the morning sun, the exposure to blue light from TV or smartphone affects your sleep cycle, as this affects the production of the sleep hormone "melatonin".
Cutting out blue light, more specifically around 480 nm, helps you to have a better night’s sleep.
Why not just use prescription glasses specially designed for a health condition?
Suitable for everyone, even for those who don't wear glasses.This special coating is designed for using before sleep to reduce the harmful effects of blue light emitted by electronic devices..
Note
The result of using NTC coating may differ as there are also many other factors that result in sleep disorders, even though NTC has the ability to assist in establishing a healthy sleep pattern.
Suitable for everyone, even for those don't wear glasses.This special coating is designed for using before sleep to reduce the harmful effects of blue light emitted by electronic devices.
Suitable for everyone, even for those don't wear glasses. This special coating is designed for using before sleep to reduce the harmful effects of blue light emitted by electronic devices.
Note
The result of using NTC coating may differ as there are also many other factors that result in sleep disorders, even though NTC has the ability to assist in establishing a healthy sleep pattern.
- Proguard Coating standard to prevent dust and stains
- It can also be used with LUTINA material
Structure of the NTC coating
The comparison of spectral transmittance
NB
- There may be a reflection of light on the back surface of the lens.
- Lenses may appear slightly coloured because of the coating cutting out blue light at 480 nm. In addition, the lens colour may look different, according to the source of light.
Sleep better by cutting out the harmful effects of blue light.
National Institutes of Natural Science Specially Appointed Prof.
Dr.
Doctor of medicine
Amane Koizumi
Engaging in a study of medical physiology and the cranial nerve science.
In particular, the vision physiology of the retina is his specialty.
There is "melanopsin-expressing retinal ganglion cell" in the retina that adjusts the circadian clock. This cell has a special photo-sensory pigment called melanopsin. This pigment sends an electrical signal to the suprachiasmatic nucleus in the brain. The centre of the circadian clock reacts to sunlight (especially blue light around 480 nm), restraining the creation of melatonin, which known as a sleep hormone. In response to sunlight and other light, telling your circadian clock that it is morning, after being exposed to enough amount of sunlight. In opposition, we can prepare for sleeping by restraining the "melanopsin-expressing retinal ganglion cell" and creating melatonin by cutting the blue light around 480 nm. Once the rhythm of the circadian clock goes wrong, it can not only cause a sleeping disorder, but also mood disorder.In conclusion, the NTC coating can be expected to support deeper sleep by helping your brain create melatonin and adjusting your circadian clock by cutting blue light around 480 nm, to which we tend to be frequently exposed to.
NTC coating helps the creation of melatonin
The creation of the sleep hormone "melatonin" is known to be restrained by the melanopsin stimulated by blue light. Recently, "the melano pick action (*1) spectrum of the melatonin secretion restraint" has been suggested as a tool of predicting the strength of the action. Concerned about the degree of the secretion restraint of the melatonin in the circumstance of normal LED light, we used the certain action spectrum(*2) in the inspection, which is the only spectrum that is proved to restrain the creation of melatonin. In addition, we used "the prediction model of quantity of action(DIN 5031-100) developed by the association of German standard standard" (*3).As a result, we found out that NTC has little secretion restraint stimulation of the melatonin.
*1 Melano pick action =the influence that light has on the physiologic and psychological process of the human body through ipRGC of the retina (ipRGC=Abbreviation of intrinsically photosensitive retinal ganglion cell)
*2 Quoted article
An action spectrum for human melatonin regulation
The melatonin restraint action spectrum in this article is on the right chart below
*3 The prediction model of quantity of action （DIN 5031-100）developed by the association of German standard
