Prism-coupling systems and methods for characterizing curved parts

A curved, prism technology, applied in the field of prism coupling system, can solve problems such as

Active Publication Date: 2016-06-22
CORNING INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such rapid non-destructive measurements of TE and TM mode spectra on curved parts have proven problematic

Method used

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  • Prism-coupling systems and methods for characterizing curved parts
  • Prism-coupling systems and methods for characterizing curved parts
  • Prism-coupling systems and methods for characterizing curved parts

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Embodiment Construction

[0033] Reference will now be made in detail to the various embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same or like reference numerals will be used throughout the drawings to refer to the same or like parts. The figures are not necessarily drawn to scale, and one skilled in the art recognizes where the figures have been simplified to illustrate key aspects of the disclosure.

[0034] The claims set forth below are incorporated into and constitute a part of this Detailed Description.

[0035] The entire disclosure of any publication or patent document mentioned herein is hereby incorporated by reference, including US patent applications S / N 13 / 463,322 and 61 / 706,891.

[0036] curved parts

[0037] Figure 1A is an isometric view of an example curved part 20, and Figure 1Bis a cross-sectional view of the curved part taken in the x-y plane. The curved part 20 has a main body 22 and a curved out...

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Abstract

Prism coupling systems and methods for characterizing curved parts (20) are disclosed. A coupling surface (44) of a coupling prism (40) is interfaced to the curved outer surface of the curved part to define a coupling interface (50). Measurement light is directed through the coupling prism and to the interface, wherein the measurement light has a width of 3 mm or less. TE and TM mode spectra reflected from the interface are digitally captured. These mode spectra are processed to determine at least one characteristic of the curved part, such as the stress profile, compressive stress, depth of layer, refractive index profile and birefringence.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under 35 U.S.C. §120 to US Application S / N14 / 013,481, filed August 29, 2013, upon which this application is based and which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to measuring stress in parts, and more particularly to prism-coupled systems and methods for optically characterizing curved parts. Background technique [0004] Chemically strengthened glass parts are becoming important for a variety of applications including: resilient, shatter- and scratch-resistant, touch-enabled, protective flat cover windows for smartphones and tablets. These glass parts are thinner, lighter and tougher than heat-tempered glass, due to the high surface compression achievable by the ion exchange process (for example, at 8×10 8 On the order of Pa). [0005] Rapid non-destructive techniques for measuring the two main parameters of the s...

Claims

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Application Information

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IPC IPC(8): G01N21/43G01B11/16G01L1/24
CPCG01L1/241G01N21/23G01N21/4133G01L1/24
Inventor A·刘R·V·罗瑟夫R·A·施奥特
Owner CORNING INC
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