OBJECTIVE LENS SYSTEM

An alignment system uses a self-referencing interferometer that incorporates an objective lens system having a plurality of lens element groups. In an embodiment, the objective is configured and arranged to provide a large numerical aperture, long working distance, and low wavefront error.

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Bibliographische Detailangaben
1. Verfasser: KIRILL URIEVICH SOBOLEV
Format: Patent
Sprache:eng
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Zusammenfassung:An alignment system uses a self-referencing interferometer that incorporates an objective lens system having a plurality of lens element groups. In an embodiment, the objective is configured and arranged to provide a large numerical aperture, long working distance, and low wavefront error.