Glasses World

Who is not recommended to wear glasses with high refractive lenses

Who is not recommended to wear glasses with high refractive lenses:
As sales grow lenses of materials with high refractive index, some experts in the field of optical correction of vision expressed the view that designate these lenses should not everyone.Consider the case where the choice of high-refractive lenses are not recommended
You ametropia less than 2.5 diopters.
In this case, it is difficult to notice and appreciate such advantages of high-refractive lenses, the smaller weight and thickness, especially when building a frame with small sizes of skylights.At the same time, the choice of an aspherical lens and a-toric designs in small refractions can be fully justified, since these designs offer significant optical advantages,reducing the astigmatic error in the peripheral zones of lenses. (more…)

Improving appearance of points of high-refractive lenses

Highly-refractive lenses made of organic materials can significantly improve the appearance of spectacles.Using the lenses of materials with refractive indices from 1.60 to 1.74 can substantially reduce the thickness and weight of lenses and glasses to make a superficially more attractive, even at high degrees of ametropia.The variety range of high-refractive lenses in combination with optical coatings, which offer today, many manufacturers, often puts consumers in a quandary: what lens to choose?To make the right decision, we must understand the basic characteristics and features of the lens material with high and superhigh refractive index. (more…)

Sun lenses for balloonists

During the flight, the balloonists will wear quality sunglasses that provide complete protection from ultraviolet radiation up to 400 nm. In addition, ideally, these glasses, especially if you use their pilots flying non-motorized means, who have in-flight monitor changing weather by the movement of air currents, should provide a sharpness and contrast,what can not guarantee normal “solar” glasses. A new generation of sun protection lenses on the market today that fully meets these high standards. For many athletes the ideal solution became sun lenses Skylet from the company Carl Zeiss Vision. They are, for example, uses the national team in Germany for gliding. Name of the lenses – a marketing gag Manufacturer: after «sky» in translation from English means “sky” and, consequently, these lenses will attract the attention of those involved in air sports. Thanks to their optical properties of the lens Skylet filter the visible portion of the spectrum and reduce the degree of abstraction of the image. (more…)

Requirements for the glasses to practice air sports

During the flight, gliders and gliders are observed for the landmarks, and the clouds, and the instruments, and other pilots, and hence, their glasses should provide a wide field of view, including peripherals. A good solution in this case could be glasses Elevation from Adidas, which not only meets the above requirement, but also equipped with a proprietary company LST-filters, allowing to balance the change in illumination, while preserving image contrast.For pilots it is also important because they often fly in the bright sun, and sit in a shaded valley.In addition, it is good when glasses gliders have the reinforced protection of the nose, as if a hard landing “at three glasses (on the nose and a trapeze apparatus) met face an athlete to land is often inevitable. As paratroopers, even in their case, providing a wide field of view glasses is required: during the free fall they have to look up as controlling the disclosure of a parachute, and down when landing. (more…)

I see everything from above, you may as well know

For those involved in air sports, good vision is important from the standpoint not only of comfort, although it is important, but sometimes even basic security. Judge for yourself.To plant a glider, the pilot must be from a height of more than 200 meters to set the wind direction on wind indicator at the airfield, often quite faded and rather shabby, and therefore a great risk to go unnoticed.There are, however, and other proven methods of determining wind direction: the smoke from the chimneys, the movement of waves and ripples on the water bodies, etc. However, they presuppose the existence of sharp vision at the balloonist.Those who can not boast of such, to avoid unpleasant situations is to think about the means of its correction, namely, the glasses or contact lenses. Wearing corrective glasses during the flight, in principle, is not forbidden.In order to ensure their retention in high winds, many athletes wear over corrective glasses, plastic glasses parachute. (more…)

Glasses for aviators

At the beginning of XX century glasses were part of equipping airmen. Nothing was for the pioneers of aviation as important as good eyesight, and nothing is promised a bigger threat than in my eye pilot foreign body. And if the car is the beginning of XX century it was still possible in an emergency stop with my eyes closed, then the pilot’s loss was fraught with opportunities to see the plane crashing, but because good glasses are no less important for the flight than the fuel tank. On the aesthetic component of these glasses initially there was no question: the main thing that they have been reliable and functional, that is, protect the eyes from cold, glare, and even boiling water – if the sudden burst radiator.With the advent of closed cabins weather could no longer be afraid, and the main function of the Glasses was to ensure the pilot eyesight and eliminate the blinding effects of sunlight. In 1930 the company Bausch & Lomb, founded in 1853 by German immigrants John Jacob Bausch and Henry Lomb, launches in New York full-scale production of sun lenses based on lens Umbral firm Schott, and in 1934, saw the light of glasses brand Ray-Ban with green lenses dropsbecome an attribute of American pilots. (Literally, the brand name can be translated as “protection from the rays,” “obstruction to the passage of light.”) These Glasses were not created for the sake of fashion. Their form, is still relevant today, and was dictated solely anatomy of the human person.They provide maximum field of vision and thus missed a minimum of scattered light. (more…)

All is not gold that glitters

Ultraviolet radiation – invisible rays that can harm the lens and retina. All this ultimately can lead to cataracts – clouding of the lens. This affects the perception of the image.Only quality sunglasses are made in the technology, which protects the eyes from ultraviolet radiation. Do not buy cheap sunglasses at natural markets.Tinted windows do not protect these glasses, but for a better perception of the pupil expands, causing even more harmful effects of ultraviolet rays. If you can not afford high-quality glasses, better get along without them!
And yet, ophthalmologists recommend wearing sunglasses good quality that meet quality standards. In what it (more…)

Trim sunglasses

Despite the fact that the trend was the desire for moderation, finishing sunglasses still remains diverse and rich. As before, designers are not limited to the surface of ear hook and capture the lens and frame.Images are laid out stones, crystals, pearl, pearls, precious metals, etc. Also one of the trends are laced Temples are reminiscent of wrought iron designs in the style of Art Nouveau. Also, often laced medallions inserted into the middle ear hook.In the middle of the medallion is usually present brand logo. Also in decorating rims laced designs are widely used laser engraving. In still stylish applique made of metal.
Recent collections fall into two extremes: either too simple or luxurious enough to glasses resemble jewelry.

In the new season, manufacturers of sunglasses popularized the classic colours of lenses and frames. Mostly dominated by traditional colors: black, gray, shades of brown. Also in the new season, especially popular colours and textures of frames that mimic animal color, snake and crocodile leather, wood and other natural materials.
In general, moderation in everything – that’s the basic kit style.I can not say that print drawings receded into the background, but now they are not so bright and fanciful. Also in the collections of sunglasses taking the place of contrasts. But like many summer collections of fashionable homes.Remain relevant all kinds of jewelry monograms, stones, crystals and other decorative elements.

What's new in colours of sunglasses?

Materials and basic requirements for sunglasses

Today, sunglasses are one of the most stylish and essential everyday accessory. Accordingly, since their invention changed the requirements for this product.One of the most important requirement was the quality of the materials actually swim out of this requirement and the rest: hypo-hypo-allergenic, lightness, strength and protection.Today, for the production of glasses manufacturers use basically different alloys without the use of nickel, aluminium, titanium, cellulose acetate, stainless steel, etc. All this spiced finish of gold, precious wood, leather or other precious materials.
The most fashionable and stylish in the new season are sunglasses made from natural materials. Lenses should be chosen poryarization photo-chromic, with illuminating surface and shock surface.These parameters are important to protect your eyes from ultraviolet radiation, as well as against all sorts of scratches and cracks, which prolongs the life glasses.