People says the authentic ray ban is designed by Italy and made in U.S A. But it seems most rayban has made in Italy on the sunglasses.

LOL.....

Ray-Ban was founded by American company Bausch & Lomb in 1937 to create sunglasses for U.S. Army Air Service pilots. The original design for Ray-Ban sunglasses was created by Lieutenant John A. Macready, who worked closely with Bausch & Lomb to develop the iconic aviator style.

The tagline of Ray-Ban is "Never Hide."

You can differentiate by looking for the Ray-Ban logo on the lens, temple or nose pads. Originals also have a serial number engraved on the right lens. The quality of materials, design precision, and overall build quality will be superior in originals compared to copies.

The Ray-Ban Clubmaster RB3016 is a sunglasses model, while the RX5154 is an optical eyeglasses model. The RB3016 is designed for sun protection with tinted lenses, while the RX5154 is for vision correction with clear lenses that can be replaced with prescription lenses.

Nope!

Yes, all Ray Ban Sunglasses have UV Protection. Look for CE mark on Ray Ban Sunglasses which indicates 100% UV protection.

Ray-ban and most other manufacturers frames are made from Plastic compounds. Ray-ban used to make all its glasses out of 'glass'. Now it makes its sunglass products out of scratch resistent plastics. Often they will 'feel' like glass but are in fact most usually plastic production.

There are many places where one could purchase Rayban Aviator sunglasses online. The best place to purchase Rayban Aviator sunglasses would be places like Amazon.

1) First, take a look at the box that your Ray-Bans came in. A recycling logo should be clearly visible.

2) All Ray-Bans should carry a semi-permanent sticker. This sticker should outline details of: the serial number, manufacturer, distributor, lens and frame type and the sunglasses' model number.

3) On the case, there should be a gold, engraved logo which reads "Luxottica". If this logo is painted, transferred or missing, you could have a knock-off pair of Ray-Bans on your hands.

4) Hold up your Ray-Bans. Check the engraved logo (an interlocking "RB") under the nose-piece. When holding the glasses the right way up, this engraving should be upside down.

5) Check the right eye lens for the brand logo engraving. If it can be found above the hinge, the glasses should be legitimate.

6) Inspect the rubber quality of the earpieces, frames and any other rubber parts. Good quality rubber will have an, almost, chalky feel to its surface.

7) Consider the quality of the authenticity card that came with the glasses. It should be made from a high-standard material. The text on the card should be completely free of any spelling and grammar errors. The ink, itself, should be impossible to smudge. Try testing the ink with a wet finger.

With this being said, there is no foolproof formula for judging whether or not a fashion item is the Real McCoy. The techniques of organised criminals are becoming more advanced, as technology continues to develop. As such, it's vital for people who buy sunglasses online to have their wits about them.

You go to authorized store and buy the original Ray-Ban...

If you decide to buy them from someone use this tips...

http://www.socialphy.com/posts/off-topic/7800/How-to-identify-an-Aviator-Ray-Ban-from-a-fake_.html

From a RayBan customer service employee:
The B15 is a brown lens and the G15 is a grey/green lens. Both lenses allow 15% light through the lens. It also blocks the UV reds and UVB rays.

From the bottom of a website( http://www.bardoptical.com/html/sunglasses.html ):
G-15 Lenses Historical Perspective In 1951, in response to a Navy Air Corps requirement, Bausch & Lomb began developing a truly neutral sunglass lens, called the N-15. This lens was reformulated slightly to make it more suitable for prescription use and renamed the G-15. The military services were so impressed that they wrote a complete set of specifications around the characteristics of the G-15 lenses. How the Lens Works Human eyes do not respond equally to all colors in the visual spectrum. The eyes are more sensitive to green and yellow wavelengths and are less sensitive to red and blue. Based on this knowledge, the G-15 lens was formulated to emphasize the colors that our eyes see most easily and de-emphasize less useful colors. The G-15 lens absorbs 85% of visibile light, transmitting only 15%. The light transmission curve of the G-15 (showing the amount of light that is allowed to pass through the lens) is similar to the color sensitivity of the human eye. What this means is that the lens transmits colors in the same way tha tour eyes are sensitive to colors. This results in natural vision - true colors that are easy on the eye. The G-15 lens is made of impact resistant optical quality glass. It provides 100% Ultraviolet (UV) protection, is naturally scratch resistant, and has outstanding stability with virtually no time-related fading or alteration of the tint.

Anywhere.. but if you're the cheap type, just go to a cheap area where you live and do it there. Or if you're the expensive type, go to a local Sunglass Hut and they'll repair it for you. They even sell Ray-Bans.

They are made from a family of glass called "Crown Glass". It is mostly silica.

CR39 is the abbreviated name of the lens material. CR39 is a plastic optical lens material with a refractive index of 1.498 (usually rounded to 1.5). It is the most commonly used plastic lens material. CR39 has replaced glass lenses as it is much lighter in weight and is safer than glass as it won't shatter or smash if dropped. Like all plastic lenses, CR39 is softer than glass and will scratch easier but it is difficult to smash.

Usually when gucci glasses are real they will have a number on the inside and be made in Italy. Fake ones don't have a number and are made in China.

Yes. Within a year's warranty you can get your glasses repaired by Ray Ban for free. After this time they may do it for a charge.

Other websites exist that will perform the repairs, or you could buy the lenses and change them yourself. These are available on line and from sunglasshut stores.

or you can just visit any local ray-ban sunglasses dealer and they should have them in-stock... if still no luck, call LA.OPTICAL.BOUTIQUE. @ 626-403-2888, they stock the most popular ray-ban replacement lens range from $20-60 a pair

A great place to look for Ray Ban sunglasses is on line. You can find a great selection including Ray Ban aviators, wayfarer sunglasses and Ray Ban caravan. It just takes a bit of searching for the right price to suit you.

No, they are not polarized.

It depends on what model you're looking at and whether or not you want polarized lenses. They usually range anywhere from $120 to up to $300 dollars

In China Polarised Ray ban is made of Plastic Lens. If not polarised,than be glass lens.

Any way you may feel light when wearing polarised plastic lens and feel a little heavy in glass lens. But polarised is easy to be scratched. So should be careful when wearing .

Hope this can help you !!