What is the approximate reflection percentage of each surface of CR-39 lenses?

The approximate reflection percentage of each surface of CR-39 lenses is about 4%. This value indicates that when light strikes the surface of a CR-39 lens, around 4% of that light is reflected away from the lens surface. This characteristic is critical to understand, especially when considering lens coatings and treatments, because high reflection can lead to reduced light transmission and increased glare. The remaining percentage is transmitted through the lens, impacting factors such as visual clarity and comfort for the wearer.

Knowing the reflection percentage is essential for both optical professionals and consumers as they assess lens performance and choose appropriate coatings, such as anti-reflective treatments, which can significantly reduce this reflection and enhance visual experience.