CR-39 - Wikipedia
WEBThe term CR-39 technically refers to the ADC monomer, but is more commonly used to refer to the finished plastic. The abbreviation stands for "Columbia Resin #39", which was the 39th formula of a thermosetting plastic developed …
Standard Plastic Lens Material Explained | EyeglassUniverse
WEBCR39 has almost single handedly brought about the near extinction of glass as a lens material. Like most plastics, CR39 is tough and resists scratching, heat and most chemicals. It is the clearest lens material in common use on the Abbe scale at an average value of 58.
Polycarbonate vs. Plastic Lenses: Which is Better? - All About Vision
WEBOct 31, 2023 · Polycarbonate lenses are a good choice for people with higher prescriptions. These lenses are thinner, more lightweight and stronger than plastic. However, the optical quality is lower than CR-39, and they are easily scratched. Pros. Durable – Polycarbonate is one of the strongest and safest materials used today in …
PPG CR-39 Monomer | PPG Optical Materials
WEBIt all starts with our proprietary PPG CR-39® lens monomer. There is only one CR-39 monomer, and it only comes from PPG. For more than seven decades, lens wearers have relied on our 1.5 index lens material, PPG CR-39 …
CR-39 Plastic Lenses | Eyeglass World
WEBCR-39 lenses offer the optical quality of glass without all the risks. They are lighter in weight and far less likely to shatter. Best everyday value. CR-39 plastic lenses are a great low-cost option for anyone with a low prescription. Available for Same-Day Service. Most glasses with CR-39 plastic lenses qualify for our Same-Day Service —a ...
CR-39 VS Glass Lenses | Eye Health HQ
WEBAug 19, 2018 · CR-39 and Glass eyeglass lenses are two of the oldest lens materials and some people still prefer them today. See how these two oldies stack up against each other.
CR-39 Plastic Lenses - Eyeglasses.com
WEBCR-39 is the standard type of plastic used for everyday use, around the office, or for shopping. These lenses have the least distortion of any non-glass lens. For children or active adults engaged in sporting activities, we strongly recommend polycarbonate (impact resistant) lenses.
Eyeglass Lens Materials: Glass, CR-39 Plastic, Polycarbonate, Mid …
WEBOct 29, 2015 · CR-39, which stands for Columbia Resin #39, is a plastic polymer that has become the most common lens material used today. The lens material accepts tint dye better than any other material, making it great for tinted eyewear. It is also thinner and lighter than glass. CR-39 is the budget-friendly choice for many consumers.
CR-39 Plastic Lenses
WEBFor Sale to Eyecare Professionals Only. Trademarked from the Pittsburgh Plate Company (PPG) in the 1940's, CR-39's complete name is Columbia Resin #39. Possessing an index refraction of 1.50, CR-39 is the most widely used lens type on the market.
Basic CR-39 Plastic Lenses - America's Best Contacts & Eyeglasses
WEBCR-39 Plastic Lenses. CR-39 plastic lenses are our standard eyeglass lenses, included with our in‑store 2 for $79.95 offer or ANY 2 pair offer. Back to All Lenses. Why choose CR-39 plastic lenses? Lightweight and less risk. CR-39 lenses are lightweight, so they’re comfortable to wear.
- Some results have been removed
Skip to content