Why special yellow glasses for drivers?
A sudden flash of oncoming headlights may well disorient the driver, provoking temporary blindness . This significantly increases the likelihood of an emergency on the highway.
Glasses with yellow lenses perfectly block light from any headlights (halogen, xenon and with ordinary incandescent bulbs).
Types of yellow glasses
Glasses with yellow lenses, depending on the functional purpose, are of various types.
Produce such models of similar products:
- anti-glare;
- polarizing;
- photochromic;
- for night driving.
Each type of such glasses has its own distinctive features and features.
The principle of operation of polarizing yellow glasses
These products are intended for use in the daytime and are used, as a rule, when driving a vehicle in sunny weather.
The functioning of glasses with a similar effect is based on cutting off mainly polarized reflected radiation, which prevents the retina from perceiving the image . In addition to the usual bright light, drivers are very annoyed by glare, which is the light reflected from the roadway, snow, water, windows and roofs.
Polarizing glasses of this color help to effectively eliminate these unpleasant moments. The principle of operation of such products is that they do not transmit reflected rays with horizontal polarization. Thanks to this effect, the image is perceived more clearly than without the use of such glasses.
Protective properties of glasses with yellow glasses
Such products are inherent in such protective properties :
Each filter that reduces background illumination increases the contrast of the visible image and increases its clarity. For human eyes, it is very important to preserve or restore (fog, dark time) the yellow component of light, since in the daytime the maximum spectral visibility (perception by the eye) is equal to a wavelength of 555 nm. The main wavelength band of spectral visibility is 500-600 nm, therefore, it fully includes the yellow component 570-590 nm.
Poor weather conditions with poor visibility (rain, twilight and fog ). Nature provides for the maximum shift of spectral visibility to the blue-green region. It is required to deceive the eyes and brain of a person - to send color sensations to the yellow (daytime) area. Based on the spectral transmission of coatings for glass and plastic lenses, part of the blue-green region of the spectrum is not suppressed. Color loss is observed only in a small amount, despite the fact that there is a significant suppression of white-blue background illumination. When using such glasses, comfort significantly improves and image sharpness increases.
Halogen lamps have an impressive blue component of the emitted light. The yellow lenses simply filter out a substantial portion of the blue component.
Incandescent lamps. Yellow glasses not only pass, but also substantially reflect the yellow component, absorbing the blue. This is exactly how the effect of neutralizing the headlights of oncoming vehicles is manifested.
Intended use of yellow glasses for night driving
Drivers of various vehicles do not always have to drive exclusively during the day or in clear weather. Glasses with yellow lenses are simply indispensable on the night track. They help to clearly see the road in bad weather (during rain, snow or fog), as well as with insufficiently clear visibility during the hours of dawn or sunset.
These glasses help drivers better navigate the track, because:
- allow to improve the color difference, due to the fact that they perfectly transmit light in the yellow-green part of the spectrum;
- help optimize the perception of the environment in the yellow part of the spectrum;
- increase contrast due to partial absorption of the violet-blue part of the radiation spectrum;
- reduce drowsiness and reduce eye fatigue (you do not have to squint and strain your eyes again), protecting the driver from falling asleep prematurely.
Tips for choosing the right night goggles
When choosing products of this kind, it is necessary to pay attention to the quality of the glass. Yellow lenses should perfectly emphasize the contrast of objects .
As for the material from which the lenses are made, it is recommended to give preference to plastic or polymer options.
Important! Lenses made of glass are contraindicated for drivers. When hit, they can break into many fragments and seriously damage the face of the driver.
Certain models of such glasses provide for a change of lenses .
The convenience of such an accessory also plays an important role. The handle should be narrow and sit tight on the nose, but not crush . When using such glasses, there should not be a feeling of discomfort. But such products should not be too free either. If the glasses fall off all the time, the driver will be regularly distracted from the road to put them in place. This is especially undesirable at night in conditions of rather limited visibility.
