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US 11,648,723 B2Granted
Method and apparatus for reducing non-normal incidence distortion in glazing films
AssigneeRacing Optics, Inc.
InventorsBart E. Wilson, Stephen S. Wilson
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Abstract
A method of manufacturing a polymer film includes melting a resin, extruding the melted resin through a die to produce a polymer film, shaping the polymer film, cooling the polymer film, capturing an image of a test pattern through the polymer film, calculating a modulation transfer function value from the image, and adjusting a process parameter of the melting, the extruding, the shaping, or the cooling based on the calculated modulation transfer function value.
Claims18
A method of manufacturing a polymer film, the method comprising:
- melting a resin;
- extruding the melted resin through a die to produce a polymer film;
- shaping the polymer film;
- cooling the polymer film;
- capturing an image of a test pattern through the polymer film;
- calculating a modulation transfer function value from the image;
- and
- adjusting a process parameter of the melting, the extruding, the shaping, or the cooling based on the calculated modulation transfer function value.
5 more elements
Dependencies are inferred from the claim text.