Optical: systems and elements – Lens – Including a nonspherical surface
Reexamination Certificate
2006-01-20
2010-12-07
Chowdhury, Tarifur (Department: 2886)
Optical: systems and elements
Lens
Including a nonspherical surface
C356S511000
Reexamination Certificate
active
07848031
ABSTRACT:
A method of manufacturing an optical element (5) comprises testing an optical surface (3) of the optical element, using an interferometer1adirecting measuring light (23a) onto the optical surface wherein the measuring light traverses two successive holograms (44, 48) disposed in the beam path of the measuring light upstream of the optical surface.
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Beder Susanne
Feldmann Heiko
Hetzler Jochen
Carl Zeiss SMT AG
Chowdhury Tarifur
Cook Jonathon D
Sughrue & Mion, PLLC
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