Abstract

The routine testing of aspheric optical components remains an elusive goal for the optical engineer. While significant improvements in the art of aspheric testing (especially in the use computer-generated diffractive nulls) have occurred over the last several years, the usual aspheric test situation still requires specialized null optics with relatively long lead times and added cost. As a result, the use of precision aspherics have been limited to situations that can afford or amortize these costs: large programs such as telescopes, high-volume products, or very specialized instruments. The irony is that these limitations are occurring at a time when manufacturing technology is capable of producing an ever-increasing variety of surface types and specifications, and sometimes these surfaces can be fabricated economically even in small quantities.

© 1996 Optical Society of America