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What is so unique about Polycarbonate Lenses?

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Polycarbonate lenses are the most-used alternative material for modern ophthalmic lenses. Consumer interest in thinner, more attractive spectacle lenses led to the development of special lens materials that would bend light differently than conventional plastic lenses. These materials are called "hi-index".
Among the high index materials developed for eyeglasses is one material that has a number of very unique properties and that also provides special benefits to eyeglass wearers. It carries the generic name "polycarbonate" but is sometimes called something different by other manufacturer trade names.
Great for sports protective eyewear
A "must" for kids
Comes with FREE Scratch and UV Protection
Impact Resistant - Polycarbonate Surpass AR lenses are 10 times more impact resistant than plastic lenses.
Lighter - Polycarbonate Surpass AR lenses are up to 35% lighter and thinner than standard plastic lenses for greater comfort.
UV Protection - Polycarbonate Surpass AR lenses shield your eyes from virtually 100% of the sun's harmful UV rays.
Scratch Resistant - PolyCarbonate Surpass AR lenses are hardcoated for excellent durability and scratch resistance.
Easy Care - PENTAX EasyClean™ treatment resists dust and smudges, making your Polycarbonate Surpass AR lenses easy to clean.
Polycarbonate was the first plastic high index lens and still has one of the highest index ratings (1.59). High index advantages are included with every polycarbonate lens so there is never any extra charge for high index when polycarbonate lenses are ordered. Originally used primarily for industrial safety glasses, now used for children, sports wearers, or anyone requesting greater impact resistance in their lenses.

Posted on Nov 07, 2010

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How to clean the headlight lens


This is a most unusual question as almost everyone knows how to clean one of the earlier glass headlights which like the later polycarbonate lens just needs washing with water and detergent and perhaps a brief polish with a glass cleaner or polish.

I therefore suspect your headlamp lenses are not dirty but have become scratched and sandblasted and in the case of the polycarbonate ones, discoloured.

If this is the case then the only solution is replacement though polycarbonate lenses can be improved and given a longer service life if not too seriously discoloured by polishing with an abrasive compound - the sort of cutting compound used on dull and rough auto paintwork and then finished with a finer compound. It is extremely long and hard work by hand but the careful use of a polishing machine will shorten the task considerably.

I suggest you ask for help and/or advice at your local car sprayshop.

Jun 08, 2016 | Cars & Trucks

1 Answer

How do you fix scratches on tom ford lens


Hi Tracy,

Despite what you read on the internet, scratches can not be removed out of polycarbonate lenses. Your best option is to have them replaced. Depending the type of frame you have new lenses cut be cut and installed for as low as $29.00. If you want a quote for repair go to www.sunglassreplacementlenses.com and send them a message using the contact for. Make sure you include the model # or name so they can give you a quote.


Thanks

Apr 21, 2014 | Tom Ford Miranda Sunglasses

1 Answer

My spy sun glasses displays rainbow colours when played


Polarized Sunglassessunglasses.lovetoknow.com > ... > Sunglasses > Types of SunglassesCached - SimilarShareShared on Google+. View the post.You +1'd this publicly. UndoHow polarized sunglasses are made • What colors are available? ... Polycarbonate lenses are created in a different manner, since polycarbonate lenses ... display appears black when you look at it through your polarized sunglasses, tilt your ... Acies, Anarchy, Bolle, Kaenon, Maui Jim, Oakley, Ray-Ban, Serengeti, and Spy.

Nov 26, 2012 | Televison & Video

1 Answer

Are impact-resistant lenses necessary?


The FDA requires all sunglass lenses to be impact-resistant. If you play sports or wear sunglasses on the job, you might want to consider ultra-impact-resistant polycarbonate lenses for even greater eye safety.

Nov 07, 2010 | Clothing Accessories

1 Answer

What are the differences between lenses? I know some are made of plastic and some from glass..Thanks!


There are couple of materials in which sunglassess are made of. 1. Glass Lenses
- it's has number of advantages: -Exceptional scratch resistance (don't need scratch resistant coating).
-Excellent optical clarity.
-Anti-reflective (AR) coating adheres to glass very well.Disadvantages are:-At least twice the weight of plastic or polycarbonate lenses.
-About 25 to 40 percent thicker than polycarbonate and high index plastic lenses.
-Can shatter or chip easier than lenses made of other materials.
-Require a special coating to provide 100% UV protection Second type is Plastic Lenses:Advantages:

Lightweight - About half the weight of glass lenses.
Plastic lenses accept tints easily.
More shatter - resistant than glass lenses.


Disadvantages:

About 20 to 35 percent thicker than polycarbonate or high index plastic lenses.
Require scratch-resistant coating for added durability.
Require a special coating to provide 100% UV protection.
Another type is Polycarbonate Lenses:Advantages:
Safest lens material - 10 times more impact resistant than other lenses.
Thin - About 20 to 25 percent thinner than plastic or glass lenses.
Lightweight - About 20 percent lighter than plastic lenses.
Blocks 100 percent UV rays without needing a special coating.
Disadvantages:
Requires scratch-resistant coating for durability.
Peripheral vision may be slightly less clear in strong prescription powers.
More lens reflections than glass or plastic lenses (AR coating recommended). High Index Plastic Lenses-Advantages:

Lightweight - Between plastic and polycarbonate lenses in weight.
Thin - About 15 to 30 percent thinner than plastic lenses.
Better peripheral optics than polycarbonate lenses (for prescription sunglasses).
Disadvantages:
Requires scratch-resistant coating for durability.
More lens reflections than glass or plastic lenses (AR coating recommended)

Nov 07, 2010 | Clothing Accessories

1 Answer

Which Features I need to look for when purchasing a pair of tennis sunglasses?


Here are some important features: 1.Competivision is a term created by Bolle Eyewear, one of the best manufacturers of sports sunglasses. Competivision is the first lens technology created specifically for tennis. The concept behind this type of lens technology is simple muting all light except optic yellow allows the ball to pop out of the background so you can see it more clearly. This is a must-have feature for all tennis players. 2.Polycarbonate Lenses-Tennis sunglasses, like other types of sports sunglasses, require polycarbonate lenses for impact and scratch resistance. Tennis players need these types of lenses more for impact and shatter resistance than anything else. 3.Polarized Lenses-Polarized lenses are extremely important in most sports - tennis is no exception. This type of lens technology is important to reduce glare. Glare from the rackets, the net or the court can hinder your performance so its important to choose sunglasses with polarized lenses. 4.Tight-Fitting-You're going to want to choose a pair of sunglasses that fit snug to your face. A huge part of your performance as a tennis player is agility. You can't stop between every hit to stabilize your sunglasses or pick them up if theyve fallen off. You need a pair that's going to move with you, fitting tight and comfortably on your face.
5. UV Protection-UV protection is a very important element in any outdoor sport. It's not enough to simply have UV protection anymore, you have to make sure the sunglasses you choose provide 100 percent UVA, UVB and UVC protection.

esigner-sunglasses/oakley.aspx">Oakley is the original designer of specific sports-related sunglass models and the first company to release a line of sunglasses designed specifically for biking. Their tight-fitting, comfortable sunglasses have been worn by cyclists in the Tour de France. Highly effective but highly expensive, Oakley offers top-of-the-line sunglasses for sports enthusiasts.

Nov 07, 2010 | Clothing Accessories

2 Answers

How difficult is it to replace the front head light assembly? My are very cloudly and I would like to replace them if it is reasonable.


Hi:
Your head light assemblies have lenses that are made out of polycarbonate, and they usually can be restored to like new condition with a kit from an auto parts store, and a little elbow grease...All for about $40.

Considering that the light assemblies could cost $200 each

Dec 04, 2009 | 2000 Nissan Maxima

1 Answer

Dull dim lenses on headlights


if theyre plastic lenses,polish them with whats now available (plastic polish)Mcguires brand ,very common for polycarbonate lenses to yellow and fade,they come up really well once done

Oct 25, 2009 | 1999 GMC Sonoma

1 Answer

Nikon 18-105mm lens


That's one of the differences between professional and amateur lenses. Of course, the cost is also different.
Similarly, amateur cameras have polycarbonate bodies while pro cameras have magnesium bodies.

Jun 09, 2009 | Nikon D90 Digital Camera with 18-105mm...

1 Answer

Hitachi 43fdx01b Cleaning


No such thing as easy on this set. Get ready to expend a bit of labor to get the job done right. Use caution on the optics of your set as there are many mirrors and lenses that are polycarbonate instead of glass.....accordianman

Sep 04, 2007 | Hitachi 43FDX01B TV

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