Pinholes and Lenses
Many people know that lenses can produce sharp images on a screen. But there are some interesting properties of lenses that are quite surprising, both to youngsters and adults. Furthermore, a pinhole is in some ways very similar to a lens, in other ways quite different.
Become a member or log in to view the full text of this article.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.