Back to results
US 12,138,846 B2Granted
Method and apparatus for reducing non-normal incidence distortion in glazing films
AssigneeRO Technologies, LLC
InventorsBart E. Wilson, Stephen S. Wilson
Life of this patent
Estimating the term…
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.
Claims20
An apparatus for manufacturing a polymer film, the apparatus comprising:
- an extruder assembly configured to melt a resin and extrude the melted resin through a die to produce a polymer film;
- a roller configured to shape and/or cooling the polymer film;
- an image sensor configured to capture an image of a test pattern through the polymer film;
- and
- a computer configured to calculate a modulation transfer function value from the image and adjust a process parameter of the extruder assembly or the roller based on the calculated modulation transfer function value.
2 more elements
Dependencies are inferred from the claim text.