O'Reilly logo

Modern Lens Design by Warren Smith

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 2Automatic Lens Design: Managing the Lens Design Program

2.1 Optimization

“A lens is about as nonlinear as anything in physics.”

RUDOLF KINGSLAKE

What is usually referred to as automatic lens design is, of course, nothing of the sort. The computer programs so described are actually optimization programs that drive an optical design to a local optimum, as defined by a merit function (which is not a true merit function, but actually a defect or error function). In spite of the preceding disclaimers, we will use these commonly accepted terms in the discussions that follow.

The lens design program typically operates this way: Each variable parameter is changed (one at a time) by a small increment whose size is chosen as a compromise between ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required