Cr39 Resin Solar Lens/Frame Manufacturer
Wholesale Manufacturer Of Sunglasses Said Cr39 Resin Sunglasses - Manufacturer Of Sunglasses
To Understand Cr39 Solar Lenses, Let's First Understand What Cr39 Is.
cr39 Chemical Name: Allyl Diethylene Glycol Carbonate
The Refractive Index Is Ne=1.499
The Light Transmittance Can Reach 92%, Which Is Equal To Or Slightly Super Glass,
Thermal Stability: No Deformation Below 150 ℃.
cr39 Lens Features:
The Specific Gravity Is 1.32, Half Of The Glass, Light;
Impact Resistance, Non Fragile, Safe, Impact Resistance 10 Times Higher Than Glass;
The Product Series Is Rich, Which Can Be Dyed In Various Colors, Easy To Process And Widely Used;
The Heat Conductivity Is Low, And The "water Mist" Caused By Water Vapor Is Better Than Glass Lenses;
cr-39 Lens, With A Refractive Index Of 1.498, Is Also Called 1.498 Resin Lens. It Is Made Of Cr-39r Material, Which Was Discovered By Columbia Chemical Division Of Pittsburgh Flat Glass Company In The 1940s. They Found That This Experimental Polymer (cr-39) Had The Best Balance Of Various Properties When They Were Developing And Looking For More Suitable Plastic Materials For Glasses. It Is Named Because It Is Columbia Resin No. 39. The Abrasion Resistance Of This Material Is 33 Times That Of Other Known Resin Materials.
cr-39 Resin Lens Is Not Easy To Crack. If The Lens Is Broken, It Will Not Only Have Few Fragments But Also Be Less Sharp, Which Can Minimize The Injury To The Eyes And Face. The Lens Processed By Adding Uv24 Can Completely Block Harmful Ultraviolet Rays, With Strong Fog Resistance. The Transmittance Of Resin Lens Is Up To 92%, More Than 2% Higher Than That Of Ordinary Glass. Resin Lenses Resist A Wide Range Of Chemicals And Solvents. Almost All Household Solvents And Chemicals Will Not Affect Or Damage Them. They Are Sold In Danyang Glasses City.
cr39 Is The Most Representative And Best Material Of All Resin Lenses. With Its Excellent Optical Performance And Scratch Resistance, It Is A Must For High-grade Sunglasses.
