Optical: systems and elements – Lens – With field curvature shaping
Patent
1997-09-05
1999-01-05
Sugarman, Scott J.
Optical: systems and elements
Lens
With field curvature shaping
359754, G02B 900
Patent
active
058568840
ABSTRACT:
Projection lens systems, which are used to transfer a pattern from a reticle onto a substrate, incorporate projection optical systems that are capable of maintaining the same, or increased performance, as the current projections lens systems, achieve excellent aberration correction, and which have high numerical apertures.
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Nelson H. Donald
Nikon Corporation
Sugarman Scott J.
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