Optics: measuring and testing – Lens or reflective image former testing – For optical transfer function
Patent
1995-07-31
1997-04-15
Evans, F. L.
Optics: measuring and testing
Lens or reflective image former testing
For optical transfer function
G01M 1100
Patent
active
056215193
ABSTRACT:
Accurately measuring and controlling the system transfer function of an imaging system, by eliminating interference from aliases. An image is captured of an image primitive with a uniaxial pattern, oriented at an angle to the primary axes of a sampling array. In order to accurately measure the system transfer function, a two-dimensional frequency representation is computed. The aliased components of the representation are separated from the unaliased components by translation in frequency along the axis perpendicular to the axis of the image primitive. Accurate measurement of the system transfer function makes it possible to accurately control the system transfer function.
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Frost Keith L.
Hansen Kim J.
Hayenga Jon W.
Oh Seho
Evans F. L.
NeoPath, Inc.
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