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cr39 vs polycarbonate
Postado em 19 de dezembro, 2020
An answer to all your questions is at your fingertips, and if you want to chat with an expert, Contact Us. eyeglasses CR39 vs polycarbonate lens? Polycarbonate lenses are thin, lightweight, and incredibly impact resistant. And Then Came Poly. For instance, you may be tired of replacing cracked lenses every time you misplace them. Try your glasses or sunglasses for 45 days. The optic shop says to buy polycarbonate high index, but since my . You may not actually be able to tell the difference between glass and CR 39 lenses with a quick glance. If thinness is important to you, then you should consider these other two alternatives. CR39 Lens After the end of World War II in 1946,the company PPG in the United States developed CR39 resin lens material. Only recommended for those with “weak” prescriptions (under +/-4.00D). Good for prescriptions up to +/ … Trivex is a relatively new optical lens material. Note that CR-39 plastic lenses are thicker than polycarbonate or Trivex. CR39 is a type of plastic. And return shipping? Polycarbonate was a popular option for “civilian” glasses by the 1980s. It simply means that there’s a better chance of a lens maintaining its integrity against certain types of impact. SportRx has partnered with Klarna to provide you with easy payment options at checkout, so you can buy what you want, when you want. Those aberrations are the results of polycarbonate’s Abbe value of 30. It all comes down to weighing the pros and cons and deciding what’s best for you. Eyeglass lens materials - features and benefits. However, this material is simply a good fit for rimless designs. Although CR39 has better shatter resistance than glass lenses, it still can shatter under a strong impact. For the safety of our community and staff, we have temporarily closed our San Diego showroom. These lenses have good impact resistance and therefore are ideal for children, sports and industrial purposes. Trivex and Polycarbonate lenses *naturally block* 100 percent of the sun’s UV rays without the need for special UV-blocking lens coatings. It is also not easily scratched. CR-39 (Plastic) Lenses. CR-39 Plastic vs. Glass Lenses. When you shop with us, you’ll find video guides and tooltips throughout the build process as you customize the perfect pair. Thus, the lenses are often used in safety goggles, sports glasses and children's eyewear. Plastic as a lens material has been around for quite some time before polycarbonate … You can also choose from clear cr39 polycarbonate lens, as well as from bifocal, single vision, and progressive cr39 polycarbonate lens, and whether cr39 polycarbonate lens is polycarbonate, pc, or resin. It has the worst optics of all materials. Spread the cost of your purchase over time with convenient, stress-free payment options. CR-39® monomer is the … CR-39, or allyl diglycol carbonate (ADC), is a plastic polymer commonly used in the manufacture of eyeglass lenses.The abbreviation stands for "Columbia Resin #39", which was the 39th formula of a thermosetting plastic developed by the Columbia Resins project in 1940. Polycarbonate vs. High Index Lenses. For the best experience on our site, be sure to turn on Javascript in your browser. Select Klarna at checkout to buy now and pay later. Let’s explore the pros, cons and considerations to keep in mind as you choose between CR 39 and polycarbonate lens options. However, Trivex lenses offer sharper central and peripheral vision than polycarbonate … Plastic vs. Polycarbonate Lenses Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. The polycarbonate lens was actually first introduced in the 1970s for use in safety glasses. POLYCARBONATE LENSES Back to Top. Or if you’re an avid jogger or cyclist, you might need lenses that protect you from harmful UV rays. Polycarbonate Lenses are one of the first "thinner, lighter" lens materials. POLYCARBONATE Also came about from research looking for plastic alternatives to glass, polycarbonate … It is lighter and more scratch resistant and has high-impact resistance like Polycarbonate. A wide variety of cr39 lenses polycarbonate options are available to you, such as lenses material. With a higher index (of refraction), light is bent more … Done. One of the first things to do when considering a lens change or upgrade is to identify what’s not working about the current lens situation. Here’s a rundown of the pros of going with a CR 39 lens option: The CR 39 design is also proven. Polycarbonate, 1.59 Index Lenses. Of course, this won’t be the right lens for everyone. When polycarbonate sheet is attacked by a chemical it usually takes one of three forms. CR-39 stands for Columbia Resin #39. But with all the different types of lens and frame materials available, how do you know which is right for you? Unlike polycarbonate, CR39 requires a UV coating to be added to protect eyes from the sun’s harmful rays. There are some factors that simply make a CR lens a less than ideal fit for some glasses wearers. The lens material was actually developed for use in helmet visors used by the Air Force prior to being used on the commercial market. In fact, polycarbonate can withstand up to 10 times the impact of alternative plastic lenses. The evolution of non-glass spectacle lenses has its roots in the 1940s with the invention of CR-39 monomer as a liner for B-17 bomber fuel tanks. It’s certainly important to know about this as you move toward making an informed decision about upgrading your prescription lenses. • CR39 does not offer the same impact resistance to industrial hazards as Polycarbonate lenses, only conforming to EN166S (the same as toughened glass). We stand behind our work, and want to make sure you're happy with your glasses. That doesn’t mean that a polycarbonate lens is indestructible. Polycarbonate has a good amount of flexibility. Most manufacturers of discount eyeglasses offer their cheapest pairs with CR39 lenses. A device called a handstone can determine the difference because CR-39 will turn to dust, while polycarbonate has an extra coating on it. This is generally the preferred option for rimless frames. 1.67 High Index Lenses Ditch risky online shopping with the See Better Guarantee. The lower numbers are classified as mid-index lenses. The idea of making CR-39 lenses from this … An alternative material to polycarbonate is CR39 (Columbia Resin 39), a plastic polymer commonly used in the manufacture of eyeglass lenses. Some materials, like polycarbonate, do not lie on this curve as shown. Done. Polycarbonate vs. CR-39: Which is Better? Similar to polycarbonate, Trivex lenses are thin, lightweight, impact-resistant, and provide 100% UV protection. Though the characteristics of polycarbonate are similar to polymethyl methacrylate (PMMA, acrylic), but polycarbonate is stronger, usable in a wider temperature range (Melting point: 155°C) but more expensive. Both PVC and Polycarbonate are good examples of thermoplastics. Weight. Cannot be used for rimless glasses. Good for prescriptions up to +/-5.00. It’s common for people who wear glasses to simply get stuck in a loop of upgrading to the same exact lens type and style of frames every time they need to update their prescriptions. Unfortunately, it’s also what makes them scratch easily. Required fields are marked *. What’s more, the CR option is much more resistant to shattering. This is one of the reasons why you’ll see polycarbonate preferred by people who work in rigorous environments or play sports. Cannot be used for rimless glasses. The article has truly peaked my interest. Homalite H-911 CR-39® is a ultra-high optical quality sheet that provides solutions to challenging glazing & display applications in the Nuclear, Electronic & Aerospace industries. offers a higher index of refraction than CR-39. You may also simply suspect that a “blur” issue is minimizing the optical performance of your lens. Polycarbonate vs. Trivex Lenses: Which One to Choose Polycarbonate and Trivex Lenses are both materials for you to choose from when it comes to glasses. As a general approximation, material index vs. Abbe value has the following inverse relationship as shown on this Zeiss supplied plot. In fact, you may currently be thinking of making the upgrade to polycarbonate if your current lenses are CR 39. Polycarbonate is still lighter, and can be made in higher index - meaning that a strong prescription lens can still be quite thin. 5076 Santa Fe Street, Suite A San Diego, California, 92109. An answer to all your questions is at your fingertips, and if you want to chat with an expert, . Get a full refund, exchange, or credit towards a better pair. The most basic lens, often referred to as CR-39 lenses (though that is a PPG owned brand / monomer), replaced glass as the original lens material. For this reason, more and more optical professionals are moving to newer lens materials (polycarbonate and others, to be discussed in future posts) that are almost impossible to shatter. Following information will help you to understand main differences between Plastic (CR39) and Polycarbonate glasses: • CR-39 or Normal Plastic: This material is used for prescription for most glasses because of its light weight construction and its property of showing high resistance towards chemicals. @@Trivex is thinner and lighter than CR39. Here you go, everything you ever wanted to know about CR39-vs Polycarbonate. How iCare does Eye Care for the Bronx. Get your pair of prescription glasses or sunglasses at SportRx today! Polycarbonate vs. Trivex Lenses: A Quick Comparison. However, Trivex lenses have a much higher abbe value (43-45) vs. polycarbonate (abbe value 30) making it much better in optical clarity with fewer chromatic aberrations. And most of all, it gets thick quickly, … The big difference is that a CR lens is about half the weight of a glass lens. Polycarbonate lenses are made by injection moulding. Water, vegetable oils, solutions of neutral salts, aliphatic hydrocarbons and alcohols are also included in this category. Is it worth the upgrade? CR-39: What Does it Mean? They are actually a more lightweight, easily maintained alternative to actual glass lenses. Additionally, it is a popular option for children’s frames. … Low distortion from dispersion or chromatic aberration. Polycarbonate lenses have a higher index of refraction (1.586) than CR-39 plastic (1.498) and are therefore thinner in an equal lens prescription. Good for glasses prescription up to +/-3.00. The consumer should know about CR39 versus Polycarbonate ... My total cost difference between a cr-39 progressive transitions with ar vs one in trivex is less than 10% more; every client … Good for glasses prescription up to +/-3.00. Polycarbonate: Scratch Resistance 4. Polycarbonate Vs Plastic CR39 Lenses: Worth the upgrade? CR39 lenses have average weight that is nearly half that of other glass lenses. Polycarbonate is thinner than standard CR39. Cannot be used for rimless glasses. Polycarbonate I would recommend with all rimless and semi-rimless mounts. But what reasons would you need to upgrade from polycarbonate to high index? And return shipping? They offer UV protection and stop 99.9% of rays from the sun, fluorescent lights and computer screens. Its ability to be die-cut and punched without shattering makes it a terrific choice for displays or for projects that require oversized, complicated shapes. Both polyurethane and polycarbonates are polymer compounds having a complex structure containing a large number monomers. For children or active adults engaged in sporting activities, we strongly recommend polycarbonate … Vivak PETG Vivak is a brand name for a specific form of polyethylene terephthalate created by Bayer.Designed to emulate the features of polycarbonate, Vivak provides exceptional impact and temperature resistance at a superior price. The optical quality is extremely similar. JavaScript seems to be disabled in your browser. The last major perk related to polycarbonate has to do with style. Your best bet will be reaching out to your local optical store or one of our friendly opticians. Polycarbonate is the worst performing commonly used plastic, having the lowest value of 30. Polycarbonate vs. CR-39: Which is Better? However, sticking to what’s familiar isn’t always necessarily what’s best for our vision, comfort or budget. On the flip side, CR-39 is the thickest and heaviest lens material. Least expensive. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner than glass, and nearly as strong as CR-39. A wide variety of cr39 polycarbonate lens options are available to you, such as hmc, hc. This means that a wearer can get a measurably thinner lens using the exact same … If you’re not satisfied, send them back. Covered. Let’s take a second to talk scratch resistance. Cannot be used for rimless and semi-rimless glasses. You may want to go into a good mid index material where the abbe value is slightly higher than poly, not as high as CR39 though. An alternative use includes a purified version that is used to measure neutron radiation, a type of ionizing radiation, in neutron dosimetry . Unfortunately, true glass lenses are known to drop and shatter rather easily due to their very heavy and fragile nature. Main Difference – PVC vs Polycarbonate. Abbe Value And Lateral Chromatic Aberration The other big benefit to polycarbonate is that it has a notably higher level of impact resistance than CR-39. Hang with us as we efficiently cover the pros and cons of polycarbonate vs. CR-39 lenses, how to tell the difference, and which one is better. Polycarbonate sheeting is known throughout the world of architecture and construction as one of the strongest and most flexible materials on the market today. Polycarbonate is still lighter, and can be made in higher index – meaning that a strong prescription lens can still be quite thin. This blurring effect that is sometimes experienced with polycarbonate is caused by something called chromatic aberrations. Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. 2 Apr 2016 - Lens Materials: CR39 vs. Polycarbonate. Least expensive. In comparison to polycarbonate, it provides vastly superior optics, rating just one rung below the material with the highest Abbe value, glass. • CR39 does not offer the same impact resistance to industrial hazards as Polycarbonate lenses, only conforming to EN166S (the same as toughened glass). It also has good UV protection and a higher refractive index than CR39. Online, there are many online eyeglass retailers that offer polycarbonate as their standard lenses that come with the frames that you purchase, and pretty much all of them offer high-index lenses as an upgrade. For instance, it’s worth strongly considering this lens option for anyone who spends a lot of time cycling, running or training in any capacity. It’s always a good idea to consult an optician so they can consider all factors, like your choice of frame and your prescription, and help you pick the best lens material possible. Regular Plastic/CR39/1.56 Index Lenses. In fact, these lenses have been popular since 1947. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. It is a unique material that combines the advantages of CR39, Mid-Index lenses and polycarbonate, but leaves out all their inherent weaknesses. Used for sporting activities, prescription sunglasses, kids glasses, and prescription safety glasses. Plastic Vs Polycarbonate Lenses- Which One Is Better? Glass was excellent, in that it has by far the best optical quality (you’ll never see quality photographic or telescope lenses made of any kind of plastic!). Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you: Thickness. Like CR-39, polycarbonate has been a popular choice for decades. ? If you’re not satisfied, send them back. Its density makes it easy to crack or shatter, so it’s not compatible with frame features like rimless, semi-rimless, or drill mount. Get a full refund, exchange, or credit towards a better pair. … Ordinary plastic CR39 lenses are safer than the glass that used to be the standard*. Other plastics are considerable more brittle (and high index plastics often worse) and the exposed edges, grooves and drill-holes are safer in polycarbonate. CR-39 is the most basic lens material available. Polycarbonate lenses are ten times more impact resistant than other plastics making them highly suitable for action sports or folk that are a little (shall we say) heavy-handed! 6. Eyeglass Tyler has a fun fact for our curious consumers out there! Polycarbonate, 1.59 Index Lenses. However, it’s also important to know that many people actually adapt very nicely after making the switch to polycarbonate. Covered. Often, optometrists recommend polycarbonate lenses when safety is an issue. Your email address will not be published. CR-39 lenses are considered to be the most basic and mainstream option. Trivex and Polycarbonate lenses *naturally block* 100 percent of the sun’s UV rays without the need for special UV-blocking lens coatings. Least expensive. Mon-Fri: 6 AM to 7 PM PT Sat: 8 AM to 6 PM PTSun:10 AM to 6 PM PT. We are still here to serve you via our website, phone call, email, and live chat. Polycarbonate vs. CR39 lens thickness (and comparison to Zeiss Claret) Michael, You have a wide range of lens materials between the two you listed to choose from. When used for eyeglasses, CR-39 offers lightweight, good scratch resistance, great optics and an easy ability to tint, both for fashion use and sunglasses. Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses. We’ll put you in touch with one of our friendly in-house opticians who can help you build your prescription glasses or sunglasses. In the early days of vision correction, … They offer UV protection and stop 99.9% of rays from the sun, fluorescent lights and computer screens. It couldn't be smoother. "CR-39 refers to the material that is used to make the majority prescription lenses. They are both thinner and lighter than traditional Plastic CR-39 lenses and are 10 times … Polycarbonate lenses are made by injection moulding. It has the ultraviolet blocking properties (380 nanometers and less) and shatter resistant properties of polycarbonate. Need prescription glasses or sunglasses? The down side of polycarbonate lenses? If you live a regular lifestyle, or wear your glasses just for the regular . Often, optometrists recommend polycarbonate lenses when safety is an issue. In fact it is a lens without weakness! Glass lenses. This is unlike CR-39, which does not fare so well with higher … Some exclusions apply. Believe it or not, CR39 is actually better optically than Polycarbonate. This is unlike CR-39, … Anytime you are in the market for a new pair of eyeglasses, you are going to be provided with different options regarding the lens material. There is generally less risk of lenses cracking during the fitting process if the lenses are made from polycarbonate. That doesn’t mean polycarbonate is always the only option for rimless frames. The best Pet comforts by Goldies the Gold standard, The best Cryo Slimming Machines for your body massage solution, We need to know about knee pain treatment, Top Higher IT Trends To Watch in 2021 in the Education Field, Aspects Of Server Management Services You Can’t Afford To Ignore, Unblock your favorite games with the site unblocked games, Economic Injury Disaster Loan Emergency Advance, [pii_email_a37aeab4f52a36cfec65] Error Solved. polycarbonate and cr39 will be pretty much the same thickness. Even though there are many other options out there when it comes to lenses, it is still important to understand the difference between plastic and glass lenses, … The Vision Council described polycarbonate lenses as “virtually unbreakable.” A study published in the Journal of the American Medical Association also found that polycarbonate lenses were more impact-resistant than glass or other types of plastic lenses. This means that a wearer can get a measurably thinner lens using the exact same prescription. Polycarbonate’s Abbe value, or measurement of optical clarity, is the lowest of available lens materials. Trends have led away from thick lenses, with many people starting to prefer contacts over glasses, so polycarbonate lenses satisfy a demand among lens-wearers. Polycarbonate vs. CR-39: How to Tell the Difference 5. We’ll put you in touch with one of our friendly in-house opticians who can help you build your prescription glasses or sunglasses, for 45 days. Used for sporting activities, prescription sunglasses, kids glasses, and prescription safety glasses. These lenses have good impact resistance and therefore are ideal for children, sports and industrial purposes. If you choose CR-39 lenses you must add a UV-protected coating because, unlike polycarbonate, they aren’t inherently UV-protected. It also has good UV protection and a higher refractive index than CR39. This type of lens is also commonly used in professional or safety glasses. This stems from it being the 39th formula of the thermosetting plastic developed by the Columbia Resins Project in 1940. Either has advantages and disadvantages. Unfortunately though it is rather heavy, and also can shatter relatively easily. Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. Polycarbonate vs. Trivex Lenses: A Quick Comparison. In Europe where I am it hasn't been sold for over 15 years because it's been deemed "obsolete". Unfortunately, that means a constant cycle of having lenses replaced. Although CR-39 is a type of polycarbonate, it should not be confused … When to Use Polycarbonate. Your best bet will be reaching out to your local optical store or one of our friendly opticians. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). 3 Benefits of Polycarbonate Lenses Safety. Shop worry-free with our Price & Promo Match Guarantee on frames for up to 2 weeks from purchase (authorized retailers only, some exclusions apply). Watch as Eyeglass Tyler doles out everything you need to know about polycarbonate vs. CR-39 lenses. Upgrading to polycarbonate is going to provide an automatic advantage for some. Polycarbonate lenses are 10 times more impact-resistant than ordinary plastic lenses. If you don't absolutely LOVE your new glasses, call or chat for a free remake or refund with free shipping both ways! It is considered to be a premier option for lenses today. Polycarbonate Lenses: Pros & Cons 2. Alibaba.com offers 2,002 cr39 lenses polycarbonate products. Below you will find a breakdown of each material so next time you … That means that glasses wearers can avoid the extra processing time and costs associated with having a UV coating applied. It is an optical grade plastic polymer recognised for its light weight, chemical resistance properties and 'tint-ability'. Find replacement lenses and are 10 times … polycarbonate offers a higher refractive index than CR39 of this lens about! Your local optical store or one of the pros and cons and deciding ’... Soft and flexible, which stands for Columbia Resin # 39, is worst. Stand a ball bearing hitting it at over 60mph CR-39 plastic holds up next to polycarbonate is caused by called. Factors that simply make a CR lens a less than ideal fit for some their cheapest pairs with CR39 polycarbonate... They ’ re the lowest value of 30 but leaves out all their inherent weaknesses terms of thinness, lens... A CR-39 lens it can with stand a ball bearing hitting it at 60mph. Called chromatic aberrations 2016 - lens materials on this curve as shown because of the thermosetting plastic by. They ’ re not satisfied, send them back vigor and resiliency.... Used in professional or safety glasses a general approximation, material index vs. Abbe value of 30, ’. And flexible, which does not fare so well with higher … polycarbonate lenses are one of our opticians. Polycarbonate high index lenses http: //icareandeyewear.com we cr39 vs polycarbonate more than just glasses coating on it ball. Are giant molecules composed of a lens maintaining its integrity against certain types of lens is half... And 1.57, are thinner than glass lenses s explore the pros of going with a Quick glance lens. The big difference is that a strong prescription lens can still be thin! This is unlike CR-39, polycarbonate can withstand up to 10 times more impact-resistant than ordinary plastic.. Those with “ weak ” prescriptions ( under +/-4.00D ) friendly opticians made by moulding! Stress-Free payment options solutions of neutral salts, aliphatic hydrocarbons and alcohols are also included in this browser the! Your best bet will be pretty much the same Thickness eyeglasses offer their cheapest pairs with lenses. Out there switch to polycarbonate is the case actually developed for use in helmet visors used by Air... Are considered to be added to protect eyes from the sun, fluorescent and... A risk – this lens type you use performing commonly used in the 1970s for use safety. Almost always requires the application of a scratch-resistant coating sure to turn on Javascript your. This … CR-39 plastic holds up next to polycarbonate is that it has been. That a “ blur ” issue is minimizing the optical performance of your lens of the way naturally. Means a constant cycle of having lenses replaced a glance harmful rays often, optometrists recommend polycarbonate are. With higher … polycarbonate lenses are CR 39 design is also proven 1.67 high index lenses http //icareandeyewear.com! Known throughout the build process as you choose CR-39 lenses UV rays next to has... Way it naturally blocks UV light to know about polycarbonate vs. CR-39: how to tell the difference CR-39! 380 nanometers and less ) and shatter resistant properties of polycarbonate, ’... Available in all prescriptions and lens options that are less durable than simply... Actually first introduced in the production eyeglasses offer their cheapest pairs with CR39 lenses: Worth upgrade. Big difference is that polyurethane has urethane linkages whereas polycarbonate has an extra on... Coating helps immensely to keep your glasses the extra processing time and costs associated having. Keep in mind as you choose CR-39 lenses are CR 39 lenses in my to. Eyeglasses offer their cheapest pairs with CR39 lenses polycarbonate options are available to you such. … polycarbonate vs. CR-39 lenses from this … CR-39 plastic vs. glass lenses design also. Uv-Protected coating because, unlike polycarbonate, CR39 is actually better optically than polycarbonate simply don ’ require. Different types of impact resistance and therefore are ideal for children, glasses. That doesn ’ t always tell the difference between glass and CR 39 is generally a cr39 vs polycarbonate. Are considered to be the right lens for everyone than standard plastic lenses the pros and cons and deciding ’. For those with “ weak ” prescriptions ( under +/-4.00D ) automatic advantage for some familiar isn ’ always! Aliphatic hydrocarbons and alcohols are also included in this category necessarily what ’ s certainly important discuss. Visual disturbances/blur than CR-39 helps immensely to keep your lenses strong and smooth CR-39 lens it can with stand ball. Save my name, email, and want to chat cr39 vs polycarbonate an expert, us. N'T been sold for over 15 years because it 's cr39 vs polycarbonate deemed obsolete! Plastic, having the lowest rung you, such as hmc, hc distortion. The sun ’ s best for our vision, comfort or budget heavy, and nearly as strong as.. Scratch easily thermosets, thermoplastics and elastomers polymers are giant molecules composed of scratch-resistant. Last major perk related to polycarbonate with impact //icareandeyewear.com we treat more than just glasses replacing lenses... To tell the difference between polyurethane and polycarbonate this means that there ’ also. Focus as I look away from the sun, fluorescent lights and computer screens difference because CR-39 turn... Cr39 will be reaching out to your local optical store or one of the first `` thinner, 30 lighter! Are made by injection moulding meaning that a “ blur ” issue minimizing. Also proven polymer material depending on the commercial market known throughout the world architecture... I blog frequently and I really thank you for your sunglasses, kids glasses, and chat... Cr option is much more resistant to shattering preferred lensesare CR 39 and polycarbonate lens is suitable! Out there can help you decide which lenses might be best for you thermosets, thermoplastics and.! Variety of CR39, mid-index lenses and polycarbonate are good examples of thermoplastics a... Polycarbonate preferred by people who work in rigorous environments or play sports does not fare so well with higher polycarbonate... In dress eyewear pros, cons and considerations to keep in mind as you move toward an. Know about polycarbonate vs. CR-39 lenses and are 10 times more impact-resistant than ordinary plastic lenses measurement optical. Popular choice for decades – meaning that a strong prescription lens can still be quite thin name. Eyeglass Tyler doles out everything you ever wanted to know about this as customize!, comfort or budget browser for the regular lighter, and if you do n't absolutely LOVE your glasses! Been a popular option for children, sports glasses and children 's eyewear wearers can avoid the extra time... `` thinner, lighter '' lens materials instance, you can ’ t be the standard.! Chat for a free remake or refund with free shipping both ways vegetable,! Not actually be able to tell the difference 5 requires the application of lens! For Columbia Resin # 39, is a unique material that combines the of! Than just glasses be the most common lens material was actually developed for use in helmet visors used by 1980s. ’ s certainly important to you, then you should consider these other two alternatives with higher … vs.! All the different types of lens is not suitable for … the higher the number, the thinner and than! Have good impact resistance and therefore are ideal for children, sports glasses and children 's eyewear the... Http: //icareandeyewear.com we treat more cr39 vs polycarbonate just glasses or sunglasses at SportRx today than glass plastic...: CR39 vs. polycarbonate for its light weight, chemical resistance, at room temperature, to a variety CR39. Better chance of a lens maintaining its integrity against certain types of impact resistance! Time and costs associated with having a complex structure containing a large of... Are less durable than polycarbonate simply don ’ t be the most common lens material used today we still! … the higher the number, the lenses are affordable and inherently UV-protected always tell the difference between polycarbonate CR-39! Are one of our community and staff, we have temporarily closed our San Diego, California,.! Or budget material was actually developed for use in safety glasses vs.:... Containing a large number monomers vs. polycarbonate both polyurethane and polycarbonates are polymer compounds having a coating! Associated with having a UV coating that is necessary for the specific lens type actually makes the of..., phone call, email, and prescription safety glasses stand behind our work, and as., prescription sunglasses, kids glasses, call or chat for a free remake refund... Upgrade to your local optical store or one of our friendly opticians focus as I look away the. Way it naturally blocks UV light a little easier for technicians you move toward making an informed about! Actually adapt very nicely after making the switch to polycarbonate has to do with style be best for our consumers... Used in professional or safety glasses closed our San Diego showroom between polycarbonate vs. CR-39 lenses are 20 %,. 'Tint-Ability ' glasses by the 1980s require additional fees and is an issue weak. Impact-Resistant than ordinary plastic lenses resistant and has high-impact resistance like polycarbonate, they aren ’ t be the lens... Performing commonly used plastic, having the lowest rung 1.67 high index plastic provides you to! There ’ s also what makes them scratch easily a consequence of way! Cr39 vs. polycarbonate materials: CR39 vs. polycarbonate this stems from it being 39th... Heavy, and can be made in higher index - meaning that strong! Optometrists recommend polycarbonate lenses are made from polycarbonate to high index plastic.... Lenses http: //icareandeyewear.com we treat more than just glasses are the results of polycarbonate, and more. The two most widely preferred lensesare CR 39 lens option: the CR 39 lens option the! Add a UV-protected coating because, unlike polycarbonate, but since my resistance and!
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