Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate
2007-10-02
2007-10-02
Nguyen, Henry Hung (Department: 2851)
Photocopying
Projection printing and copying cameras
Illumination systems or details
C355S053000
Reexamination Certificate
active
10975496
ABSTRACT:
A catadioptric lens with optical elements, which are arranged along an optical axis and with at least one concave mirror located in the vicinity of a pupillar surface of the projection lens. The concave mirror is sub-divided into a number of annular or honeycomb mirror segments, which can be displaced independently in relation to one another with the aid of piezoelectric drive elements. The mirror can be used as a phase-shifting pupillar filter, whereby the filtration function can be adjusted by the relative displacement of the mirror elements in relation to one another.
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Haag Ulrich
Hembd-Soellner Christian
Holderer Hubert
Von Buenau Rudolf
Carl Zeis SMT AG
Nguyen Henry Hung
Sughrue Mion Pllc.
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