Ray-Ban uses four different types of lenses with regard to their sunglasses. The B15 XLT lens, the cheap ray ban sale, polarized lenses and normal lenses, which we won’t discuss here because there’s nothing special on them (they only can be found in different colours).
Ray-Ban B15 XLT lenses are brownish in colour, block 100% of all Ultra violet rays and allow only 15% of your visible light to pass through through them (that’s an 85% reduction!). These brown lenses provide much more contrast by cutting down on the quantity of blue light, rather than a G15 lens (which is described over the following paragraph). Blue light is extremely easily captured through the eye and contains the outcome of softening other colours which are harsher to the vision. Put simply, by reduction of the volume of blue light, the differences between colours and brightness of objects are definitely more pronounced.
The G15 XLT lenses have the same properties because the B15 XLT lenses, however they’re of greyish/greenish colour. The G15 lens may be the original aviator lens that this military requested Ray-Ban to produce. The process was to design a lens that was “colour neutral”; in other words, a lens that filters light like the eye does. If you prefer a lens that gives a little less contrast between colours, then the G15 XLT lens is designed for you since it offers similar colour-sensitivity towards the eye. Having a lower contrast lens, the difference in colour and brightness of objects will be dampened. This means that the colours the truth is with these lenses will likely be natural and soft on the eyes.
Both B15 and G15 XLT lenses are created from impact resistant optical glass that is certainly naturally scratch resistant. Quality and stability are remarkable and also over time you will see basically no fading whatsoever inside the colour.
Polarized lenses essentially cut down the volume of glare created by reflective surfaces like water or any other semi-transparent objects, and also some metallic surfaces. Glare refers back to the difficulty of seeing in bright light.
Sunlight, for instance, bounces off surfaces in most directions (i.e. vertically, horizontally or diagonally). For folks who are active within the “horizontal plane”, it implies that the bright sunlight bounced horizontally enters the eye inside a similar fashion. This leads to the pupils to constrict and significantly reduce contrast. That’s why drivers have difficulty seeing the path prior to them if they’re driving in very sunny conditions (in the event the sun is prior to them).
Polarized lenses have got a laminated surface with vertical stripes that create a filter, which effectively omits the horizontally-polarized light and allows only vertically-polarized light in. Quite simply, should you be on a clear lake you can probably see within the surface or maybe if you’re driving, you may now see ray1ban road ahead.
Some limitations to polarized lenses are that LCD displays can get distorted or else you may notice a “rainbow” effect should your car’s windows are tinted.
All 3 lenses are extremely useful, particularly the polarized ones, but anticipate to pay a premium about the sunglasses.
The lens base simply means the base curve or perhaps the front curve of your lens measured in “diopters”, and that is a term that truly only matters to opticians. You’ll learn that many ray ban sale online have a “Lens Base 6”, which basically ensures that they’re sufficiently curved and made to to perform as sunglasses (i.e., they cover the eye area enough).
Lens dimension is measured in millimeters and signifies the length (or width) of just one lens. Bear that in mind when creating an order. Many Ray-Ban models can be found in a number of different sizes of lens. Make sure you obtain the size that suits your facial skin or you may end up with a kind of aviator shades that don’t fit properly.