Ray-Ban Sizing You’ll see three numbers on most models, a bit like a sort code (eg, 50-20-150). The first is the lens diameter, the second is the width of the bridge across your nose and the third, if there is one, is the length of the temples (or arms) – all in millimetres.Click to see full answer. Keeping this in view, what does 3n on Ray Bans mean? Ray-ban lens code categories The number is for one of five categories from 0 to 4. 0 is for cloudy conditions; 1 is for partly sunny; 2 is for medium brightness; 3 for high intensity and 4 is for exceptional brightness. Thus, the code 3N will mean they have standard lenses for use in high brightness environments.Likewise, what do the numbers mean on sunglasses? Answer: They’re size measurements in millimeters. They’re measurements. The first number (e.g. 52), is the width of the lenses. The second number (e.g. 20) is the distance between the lenses. And the third number (e.g. 135) is the complete length of the temple arm, which includes the portion that goes behind your ear. Considering this, how do I read my Ray Ban serial number? Look For the Model Number One of the most reliable methods for spotting genuine Ray-Bans is to look for the serial number. This can be found on the inside of the left arm of the sunglasses, unless they’re aviators, in which case the arms are too thin to fit a number.Why are Ray Bans so expensive?High demand, good branding, and Luxottica’s monopoly on the glasses market make Ray-Ban sunglasses so expensive in the market. Their price does not signalize superiority in quality in any way. Ray Bans became widely popular because they were worn by Tom Cruise and JFK and in several movies.
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