Knowledge Pack
ABBE Glasses Lenses is a brand owned by ABBE Glasses, the quality level of which is same as Eyebuydirect, Zennioptical and Kodak (Transition lenses excluded...
Mon, 11 Nov, 2019 at 10:32 PM
Eyeglass lenses are often categorized by their refractive index (also called index of refraction). The refractive index of any substance is the speed of li...
Sat, 2 Nov, 2019 at 4:12 PM
The Abbe number (or Abbe value) of a lens material is an objective measure of how widely the lens disperses different wavelengths of light as light passe...
Sat, 2 Nov, 2019 at 4:13 PM
AVIATOR FRAMES The first aviator sunglasses were made by Ray-Ban in the Second World War for fighter pilots. Pilots need a pair of glasses that both elimin...
Wed, 6 Nov, 2019 at 6:25 AM