Glasses with yellow lenses. Production technologies Models that are necessary for driving in poor visibility

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Anti-glare glasses are an accessory necessary for drivers, not only to preserve vision.

They also help to avoid accidents on the road.

Such glasses give a person the opportunity to simply not notice bright glare from reflective surfaces.

Operating principle

To prevent your eyes from being blinded by bright sun glare on reflective surfaces, used in anti-glare glasses polarized lenses . Their action is to filter out the irritant - reflected light. Respectively, by the human eye it is also not captured.

Another direction of action of this technology is the absorption of rays of the blue spectrum, which is harmful to the eyes. Anti-glare glasses absorb them, and a person perceives only rays of the yellow, safe spectrum.

The advantage of such glasses for vision is that they protect the eyes from ultraviolet radiation . They also help relax the eye muscles, which allows a person to see with more contrast and clarity. These properties are important for eye health.

The result of glasses with polarized lenses is a clearer picture of what is happening on the road. Light glare on wet asphalt, snow, car windows, blinding light from headlights and lanterns are swept away. The likelihood of emergency situations is reduced, which is extremely important.

Who needs it and in what cases?

Anti-glare glasses are created primarily for drivers. They will also be useful for athletes, climbers, fishermen and sailors. When working in any conditions where sharp vision is required, and there are interfering reflective surfaces, anti-glare glasses will be appropriate.

Every driver has to experience discomfort, catching blinding glare.

At any time of the day, irritating factors are present. During the day - reflected sunlight, at night - headlights of oncoming cars and street lights.

An irritating factor around the clock can also be reflected in windshield dashboard. Properly selected anti-glare glasses successfully cope with all these problems.

How to choose the right anti-glare glasses

To choose the right anti-glare glasses, you need to analyze the conditions in which you most often drive. Depending on this factor, you will have to decide on the type of glasses.

Glasses with polarized lenses. Fully polarized lenses will be appropriate when driving at night in order to eliminate glare from artificial lighting.

Anti-glare glasses. These glasses have a special strip ( upper part lenses) that neutralize glare. For example, seeing an oncoming car or in bright sunlight, the driver should tilt his head slightly to protect his vision. Suitable for daytime driving.

Glasses with dark lenses provide the greatest protection.. They neutralize light glare and allow you to relax as much as possible. eye muscles, protect from ultraviolet rays. When there is fog, they make the picture contrast and help you distinguish objects better.

Glasses with yellow lenses are universal. They protect against UV radiation, reduce the intensity of glare from snow and headlights of oncoming cars, and give rest to the eyesight. Can be used in any weather and at any time of the day.

Glasses with brown lenses also provide eye protection from ultraviolet rays, dissipate glare from wet surfaces, car headlights, and relieve eye strain.

Suitable for driving in fog, twilight, and bright sunlight.

The frame of anti-glare glasses for drivers should be comfortable so that there is no need to correct them. To do this, you need to pay attention to the quality of nose pads and temples. It is advisable to choose thin ones so that they do not interfere with your view.

Polymer lenses weigh the least and do not break.

Well-chosen, comfortable anti-glare glasses will preserve the driver’s vision and protect him from accidents. You just need to correctly analyze the conditions for which they are required and carefully monitor the quality of the lenses and frames when purchasing.

It's no secret that spectacle lenses there may be almost any color. Have you ever seen a person wearing colored glasses on the street and wondered why he wears them - is it just fashionable or do they still have some practical function?

Yes, sometimes it can be a tribute to fashion, but most often colored lenses have unique properties . Unfortunately, very few people have knowledge on this topic. But we will help you figure it out. Let's start with this article, in which we will look at glasses with yellow lenses - what they are for and who is recommended to wear them.

How do yellow glasses work and what are they for?

Glasses with yellow lenses have the ability cut off the rays of the blue part of the spectrum, which are responsible for the appearance of “flares” on the retina from sudden sources of bright light or, in other words, short-term partial blindness.

Also, when using them, the contrast of the image decreases. As a result, bright light becomes dimmer, and in low light The “picture” becomes more legible.

It is important that the workmanship is of the highest quality top level: simply colored lenses – bad option, since although they will improve contrast, there will remain a high light transmittance of the yellow spectrum, which can have a depressing effect on the psyche.

Panacea for drivers

The first people who should know why yellow glasses are needed are, in particular, those who often drive in the dark.

For night driving you need lighter ones yellow shades. For twilight and fog conditions, yellow-orange shades of lenses will be convenient.

In addition to making driving more comfortable by improving image clarity and relieving eye strain, yellow spectacle lenses help avoid being dazzled by the headlights of oncoming cars.

In the daytime, excessive contrast can only make life more difficult for the driver. Therefore, yellow glasses are harmful to wear during the day, especially in bright sunshine.

Alternative for geeks

To protect the eyesight of people who spend a lot of time in front of computer monitors, there are special glasses whose lenses are usually clear or have a slight greenish/pink tint.

But if you take quality glasses with yellow lenses for drivers, or even better - designed specifically for pilots with additional protection from harmful radiation, they will also be convenient for computer geeks. Increased contrast relieving eye strain and protection from the radiation produced by the monitor - exactly what you need when you spend many hours at the computer.

This, of course, is not an ideal option, but it is quite appropriate if you do not have yellow ones on hand, which are used for driving.

In general, this is all the information about why yellow glasses are worn. Although you still need to tell us one more nuance: to avoid misunderstandings when purchasing in a store/ordering online, remember that the description of glasses usually indicates not the literal translation of the word “yellow” into English – “yellow”, but “amber” , which is also the designation yellow or amber color.

Enjoy your driving and comfortable work at the computer!

Operating principle polarized glasses.

Polarized glasses are designed to be worn during the daytime and are mainly used when driving a car in sunny weather.

A wave in which there is a preferred direction of oscillation is called polarization. Polarization itself is possible only in transverse waves, and oscillations occur only in directions perpendicular to the direction of propagation of radiation. The operating principle of polarized glasses is based on cutting off predominantly polarized reflected radiation. When driving a car, radiation reflected from the surface of other cars, as well as from the wet surface of the roadway, is cut off. When fishing, radiation reflected from the surface of the water is cut off.

How polarized glasses with yellow lenses work

In order to understand the principle of operation of glasses with yellow lenses, it is necessary to remember the spectral characteristics of radiation sources. The color change occurs continuously and contains many halftones, so the distribution of the color spectrum is conditional.

In particular, spectral colors correspond to the following wavelengths (nm):

Radiation emitted by heated solids and liquids, has a continuous spectrum, i.e. contains all wavelengths in the visible range. The maximum is located at around 555 nm.

As can be easily seen from the graph when applying sunglasses with a transmittance of 50% (for example, polarized ones), the maximum relative visibility will simply drop to around 0.5, and when using glasses with transmission of the yellow component, it will remain almost at the same level. Therefore, the use of such glasses in cloudy weather and at night does not lead to significant loss of visibility.

The glow spectrum of atomic gases and vapors is a set of individual lines with characteristic wavelengths determined by the structure of the shells of the atoms of a given element. In particular, with halogen sources (car headlights), the main brightness is shifted to the blue region.

Let's move on to incandescent headlights. Radiation emitted by heated solids has a continuous spectrum, i.e. contains all wavelengths without exception, including the UV range. The characteristic color of incandescent lamps is “yellowish-white”.

Halogen headlight bulbs emit a "blue-white" color. The glow spectrum of atomic gases and vapors is a set of individual lines with characteristic wavelengths determined by the structure electron shells atoms of a given element. For example, the main spectral lines of helium atoms in the visible range are 447, 492, 587, 667, and 706 nm. Halogen lamps also have spectral lines in the UV range.

Now let's look at the yellow lenses in the glasses.

The overwhelming majority of people believe that to get yellow lenses you just need to paint transparent glass or plastic yellow. But that's not true.

Option #1. Make light filters with a narrow bandwidth (570-590 nm). In this case, they will transmit only the yellow component of light. All surrounding objects will turn yellow - some darker, others lighter. A sort of “gray-yellow movie”. It is unlikely that you can work at a computer or drive a car wearing such glasses. The color loss is simply terrible.

Option #2. Using the laws of color composition. It is known that if from white remove the blue component, it will turn yellow. Thus. If glass or plastic is coated with a coating that reflects the blue component of light, the transmitted white radiation will turn yellow. The same thing will happen if a dye is introduced into a mass of glass or plastic, which will absorb and (or) reflect the blue component.

Protective properties of glasses with yellow lenses

1. Any filter that reduces background light improves contrast visible image and therefore improves its clarity. The main thing for the human eye is to preserve or restore (cloudy, twilight, fog) the yellow component of light, because in the daytime, the maximum spectral visibility (perception by the eye) corresponds to a wavelength of 555 nm. The main wavelength band of spectral visibility is 500-600 nm, i.e. completely includes the yellow component 570-590 nm.

2. Cloudy weather, fog, twilight. The maximum spectral visibility shifts to the blue-green region (as intended by nature!). It is necessary to deceive the human brain and eyes - change color perception to yellow - the daytime region. At the same time, judging by the spectral transmittance of coatings for glass and plastics, part of the blue-green region of the spectrum is not suppressed. Of course, there are color losses, but they are not drastic. In this case, the blue-white background light is significantly suppressed. The improvements in comfort and image sharpness are enormous - put on your glasses and all doubts will go away!

3. Night driving - polarized lenses yellow. Color perception - see point 2.

A. Incandescent lamps. Yellow lenses not only transmit, but also largely reflect the yellow component (they absorb the blue). This is the effect of protection from oncoming headlights.

B. Halogen lamps have a significant blue component of the emitted light. Yellow glass they simply filter out a significant portion of the blue component.

From the picture you can already guess: 1) for drivers, 2) and of course, for computer scientists! 3) and more
And now some text from the author Ursego , from which we learn a lot of interesting things “If you watched “Pereshilton Spotlight” with Ivan Okhlobystin, you probably noticed that he came wearing glasses with yellow lenses:

About what yellow filters do not allow harmful rays of the blue part of the spectrum to pass through, I didn’t read it on the Internet right away, but it all started when a few years ago I started working as a taxi driver, and at night. What is night driving? This is a generally dark picture outside the window (as a result of which the pupils dilate compared to daytime), but when the headlights of an oncoming car come into view, they simply burn out the retina (in the daytime, it doesn’t matter - the pupils are Already!). And while driving, this joy is generally constant, and not once an hour... But a colleague (a seasoned wolf of the taxi business) saved me - he advised me to drive in yellow glasses(and due to the fact that I’m already a bespectacled person, I bought an overhead filter on a clothespin for 6 bucks). The mechanism is simple - the contrast decreases. Bright things become dimmer, but black things do not become blacker, i.e. the difference between the extreme points decreases. The result was amazing - my eyes stopped getting tired! By the way, a very interesting effect (or illusion?) was discovered - you put on yellow filters at night and suddenly it seems that the picture has become clearly lighter. I don’t know why - either the pupils are dilating, or it’s psychological... In short, if you are a professional driver (or just sometimes drive at night), then buy without hesitation - well, just without hesitation at all! By the way, if you’re a killer, then too - these glasses are given out at the shooting range so that the picture is clearer and more contrasty (I saw it when I took a kid to shoot with a real pistol somewhere on the northern outskirts).

But there is another use - for those who spend many hours at the computer. I specially ordered a pair (I have diopters) and keep them at work (by the way, this color is called amber in English, otherwise you will, like me, rub the poor saleswoman about yellow...) - sitting down in the morning to workplace, I put them on instead of the usual ones (with the same diopters, but made of transparent glass). But sometimes I forget to change my glasses, but then after a few hours an automatic reminder comes and my eyes hurt. I change it and the pain goes away. In short, if you also spend whole days with your face buried in a computer screen, then buy without hesitation - well, just without hesitation at all!