a foreign team has developed a magical "film", which can be pasted on glasses to have "night vision ability"

introduction: I believe that for most people, night represents fear and darkness of the unknown. Being able to see things clearly in the night is the ability everyone wants to have. With the advancement of science and technology, seeing objects in the dark will no longer be a fantasy, just wear a pair of glasses.

a foreign scientific research team has developed a "crystal film". After covering it on the surface of ordinary glasses, the glasses will becomemagic glasses with "night vision"! Before we go into more detail, let's learn more about night vision goggles.

Night Vision Goggles

in the early days, night vision goggles belongeda kind of military supplies, but with the advancement of technology in recent years, night vision goggles have gradually becomePopularizationup, now you can have a night vision goggles that you can make do with for thousands of dollars.

The common imaging principles of night vision goggles in the market are these two:

1. Infrared night vision device

its specific principle is based onCCD with a wide range of light sensitivity or CCD specially used to sense infrared band, extremely sensitive CCD to receive infrared, after taking office, you can understand the scene ahead by watching the screen (in the early days, it was an active infrared night vision device that can actively emit infrared).

in fact, as long as the object'stemperature is higher than absolute zero, there will be "light", but the human eye ishave no way to perceive this band of light., so we can only see black at night, but we can wear it.perceives CCD in infrared band, at night, we can see the same weird world as camera negatives.

2. Low-light-level night vision device

even if it is dark at night, there is still light., whether it is the distant light or the starlight in the sky, the low-light night vision device receives the light reflected by the object and then amplifies it thousands of times,can display the scene that can be observed on the screen..

actually has another kindpure passive infrared night vision equipment, but this kind of equipment is usually used in the military field, whichimaging is similar to that of infrared night vision apparatus., only due to the refrigeration of photoreceptors and the use of gaze imaging, their clarity and sensitivity will be greatly improved, so the quality is better and the cost is higher.

what is the "crystal membrane"

According to research data, its imaging principle is completely different from the above three. It isis purely passive, you don't need any energy to be ableconverts visible light through infrared rays. However, there is no detailed explanation of the specific principles in the data, but we can "forcibly explain" a wave according to the original text to see how this technology can be realized.

must first choose materials that can "transmit light", but regarding light transmission, inquantum mechanics is particularly complex, so there will be no detailed explanation today. In short,photons are absorbed, electron energy level transitions, and photons are emittedis light transmission.

and in this process, there are many possibilities, but theoretically, electrons will absorb photonstransition to high energy level, then the photon will be released when it falls back to the original energy level, but accordingenergy, there will be some energy loss in this process, then the photon energy level emitted again will belower than the original infrared, the wavelength will be longer.

but under normal circumstances,the wavelength of visible light is shorter than that of infrared light, the energy of photons is lower.. So this is also untenable. Unless this "crystal film" can emit after absorbing multiple infrared photonsvisible photons at higher energy levels, if this material really exists, it is very simple to convert infrared into visible light.

but there is a particularly serious problem, that is, this material may transfer visible lightconverted into ultraviolet rays or even more serious X-rays, if this material is really found, it is still necessary to set one.the best conversion range, otherwise a lot of trouble will arise.

: According to the interview records published by the scientific research team, the materials they said to make the "crystal film" are most likely to work according to this principle, but the specific technology is stillis not yet mature. It is estimated that mature technology will come out soon., then its imaging principle will be made public.

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