Inference method, quality control method, chemically strengthened glass, inference program, storage medium, inference device, and method of manufacturing chemically strengthened glass
AssigneeAGC Inc.
InventorsSatoshi Ogami, Kenji Imakita
Life of this patent
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Abstract
An inference method includes inferring a value that includes a stress value in a region located 50 μm or shallower from a surface of a chemically strengthened glass, by receiving as input at least a temperature and a time used upon chemical strengthening, and stress values at three or more different depth positions 20 μm or deeper from the surface of the chemically strengthened glass that has been obtained by chemically strengthening a glass having a thickness of 0.2 mm or greater with the temperature and the time.
Claims15
A method of determining a stress value in a region located 50 μm or shallower from a surface of a chemically strengthened glass having a thickness of 0.2 mm or greater, the method comprising:
- measuring a stress value at three or more different depth positions 20 μm or deeper from the surface of the chemically strengthened glass;
- and
- determining, based on the measured stress values and a temperature and a time used during chemical strengthening, the stress value in a region located 50 μm or shallower from the surface of the chemically strengthened glass.
A non-transitory computer-readable recording medium having computer-readable instructions stored thereon, which when executed, cause a computer including a memory and a processor to execute a method of determining a stress value in a region located 50 μm or shallower from a surface of a chemically strengthened glass having a thickness of 0.2 mm or greater, the method comprising:
- measuring a stress value at three or more different depth positions 20 μm or deeper from the surface of the chemically strengthened glass;
- and
- determining, based on the measured stress values and a temperature and a time used during chemical strengthening, the stress value in a region located 50 μm or shallower from the surface of the chemically strengthened glass.
A device comprising:
- a memory;
- and
- a processor configured to measure a stress value at three or more different depth positions 20 μm or deeper from a surface of a chemically strengthened glass;
- and
- determine, based on the measured stress values and a temperature and a time used during chemical strengthening, the stress value in a region located 50 μm or shallower from the surface of the chemically strengthened glass.
Dependencies are inferred from the claim text.