Lenses are classified by the curvature of the two optical surfaces. Also called a "converging lens" because it converges parallel rays toward a focus point. A convex lens bulges outward from the centre of the lens. When this curve occurs on both sides of a lens it is called "biconvex" and when it occurs on a single side it is called "plano-convex.". The PC Spot is so named because of its use of the plano-convex lens.

This page has been seen 1,025 times.

Industry Advertising

Recent Activity

Readability Information

An automated review of this page attempts to determine its readability in English (US). The page contains roughly 76 words across 5 sentences.
Readability score
Readability score: 65.62
Grade level
For the information in this page to be accessible to the widest audience of readers, both a high readability score and a low grade level are ideal.

Icon Legend

  • Normal page
  • Color code

    • Content has new updates
    • Content has no updates

CB Advertising

Sign up to Advertise Today