Method of manufacturing an optical element

Details Method of manufacturing an optical element Method of manufacturing an optical element

2007-09-28

2010-06-15

Lyons, Michael A (Department: 2877)

Optics: measuring and testing

By light interference

For dimensional measurement

Reexamination Certificate

active

07738117

ABSTRACT:
A method of manufacturing an optical element involves an interferometric test of the optical element using an interferometer system of a Fizeau type combined with principles of white-light interferometry. The optical element is disposed in a cavity between a Fizeau surface and a mirror, and an optical path difference between a back surface of the optical element and the mirror is determined for determining parameters of the optical element, such as a thickness thereof. Measuring light from an optical delay apparatus can be supplied to the Fizeau interferometer through an optical fiber.

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