Near-null interferometry using an aspheric null lens generating a broad range of variable spherical aberration for flexible test of aspheres.
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DOI: 10.1364/oe.26.031172
Abstract: A null lens moving back and forth relative to a point source can generate variable spherical aberration for flexible test of aspheres. Different from the previous methods, variable spherical aberration null theory was developed by… read more here.
Keywords: test; variable spherical; spherical aberration; near null ... See more keywords