Ray-Ban takes advantage of four differing types of lenses for his or her sunglasses. The B15 XLT lens, the G15 XLT lens, polarized lenses and regular lenses, which we won't focus on below for the reason that you can find almost nothing Unique about them (they just come in numerous colors).
B15 XLT Lens
Ray-Ban B15 XLT lenses are brownish in colour, block 100% of all UV rays and permit only fifteen% with the obvious mild to go through them (which is an 85% reduction!). These brown lenses also provide a little bit extra distinction by cutting down on the quantity of blue gentle, versus a G15 lens (that is described in the next paragraph). Blue mild is extremely simply captured by the eye and has the result of softening other colours which are harsher to our eyesight. In other words, by reducing the amount of blue light, the variations in between colors and brightness of objects tend to be more pronounced.
G15 XLT Lens
The G15 XLT lenses possess the exact same Attributes as being the B15 XLT lenses, however They are of greyish/greenish colour. The G15 lens is the initial aviator lens which the armed forces asked for Ray-Ban to produce. The obstacle was to design and style a lens which was "colour neutral"; To paraphrase, a lens that filters mild like the human eye does. If you need a lens which offers a little less contrast involving colors, then the G15 XLT lens is for yourself mainly because it gives similar colour-sensitivity for the human eye. Which has a reduce contrast lens, the primary difference in colour and brightness of objects will probably be dampened. Which means that the colours you see via these lenses will likely be all-natural and gentle about the eyes.
Both equally the B15 and G15 XLT lenses are made of effects resistant optical glass that is naturally scratch resistant. High quality and stability are remarkable and as time passes you'll see almost no fading in any way from the colour.
Polarized Lens
Polarized lenses primarily Slice down the amount of glare made by reflective surfaces like water or other semi-transparent objects, and perhaps some metallic surfaces. Glare refers to The issue of observing in bright light.
Sunlight, as an example, bounces off surfaces in all directions (i.e. vertically, horizontally or diagonally). For people who find themselves Energetic during the "horizontal aircraft", it implies that the bright daylight bounced horizontally enters the attention in an analogous fashion. This will cause the pupils to constrict and considerably reduce distinction. This is why drivers have difficulty looking at the street forward of these whenever they're driving in incredibly sunny disorders (If your Sunshine is ahead of these).
Polarized lenses have a laminated floor with vertical stripes that create a filter, which efficiently cuts out the horizontally-polarized light and allows only vertically-polarized gentle in. Quite simply, in the event you happen being on a transparent lake it is possible to most likely see under the surface area or should you be driving, you can now see the street in advance.
Some limitations to polarized lenses are that LCD displays could develop into distorted or you could detect a "rainbow" result if your vehicle's windows are tinted.
All three lenses are really practical, specifically the polarized types, but assume to pay a high quality over the sunglasses.
Lens Base
The lens foundation basically refers to the foundation curve or even the entrance curve of your lens calculated in "diopters", that's a phrase that basically only issues to opticians. You'll find that many Ray-Ban aviators Have got a "Lens Base six", which fundamentally indicates that they are adequately curved and made to to operate as sun shades (i.e., they include the eyes ample).
Lens Dimension
Lens measurement is calculated in millimeters and refers to the size (or width) of 1 lens. Bear that in your mind when making a acquire. Quite a few Ray-Ban products are available in numerous distinctive dimensions of lens. Ensure you get the size that fits your deal with or you may end up with a set of aviator shades that do not fit correctly.
Some Ray-Ban sunglasses have lens dimensions that are selected as further smaller, compact, etcetera. This is typical for models that don't resemble standard oneday colored contacts Eyeglasses with two lenses. These sunglasses have a "uni-lens" style and design, in which the lenses are connected seamlessly throughout the bridge. For this reason, common sizing is just not applicable. These shades are for your large manner search.