Testing optical surfaces by high-precision diffractive null lenses with integrated reference surface

Autor: Vadim V. Cherkashin, Jean-Michel Asfour, Alexander G. Poleshchuk
Rok vydání: 2003
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.500295
Popis: Fizeau interferometers with an additional diffractive optical element are frequently used for measuring spherical and aspherical surfaces. We present a new design, were the Fizeau principle is now perfectly fulfilled, by generating reference and measuring wavefront on the last optical surface, carrying a diffractive optical element. Several advantages of this design are discussed and proved experimentally.
Databáze: OpenAIRE