Enhanced hybrid systems and methods for characterizing stress in chemically strengthened transparent substrates

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United States of America Patent

PATENT NO 11852549
APP PUB NO 20220276106A1
SERIAL NO

17676450

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Abstract

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The hybrid measurement system includes an evanescent prism coupling spectroscopy (EPCS) sub-system and a light-scattering polarimetry (LSP) sub-system. The EPCS sub-system includes an EPCS light source system optically coupled to an EPCS detector system through an EPCS coupling prism. The LSP sub-system includes an LSP light source optically coupled to an optical compensator, which in turn is optically coupled to a LSP detector system via a LSP coupling prism. A support structure supports the EPCS and LSP coupling prisms to define a coupling prism assembly, which supports the two prisms at a measurement location. Stress measurements made using the EPCS and LSP sub-systems are combined to fully characterize the stress properties of a transparent chemically strengthened substrate. Methods of processing the EPCS and LSP measurements and enhanced configurations of the EPCS and LPS sub-systems to improve measurement accuracy are also disclosed.

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Patent Owner(s)

Patent OwnerAddress
CORNING INCORPORATEDSP-TI-3-1 CORNING NY 14831

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andrews, Ryan Claude Elmira, US 22 86
Berg, David Matthew Rochester, US 8 2
Bouzi, Pierre Michel Horseheads, US 6 5
Furnas, William John Elmira, US 13 29
Immerman, Jacob Corning, US 17 119
Jacobson, Jeremiah Robert Corning, US 5 5
Lindberg, Katherine Anne Corning, US 4 0
Newcomer, Glenn Abram Pine City, US 4 4
Olson, Evan Lewis Elmira, US 5 4
Stepanov, Viktor Painted Post, US 2 4
Wetmore, Nathaniel David Corning, US 11 48

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