Method for analyzing the quality of a glazing
US9588059B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2012 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | May 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/9586
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for analyzing quality of a glazing including: generating at least one digital image of a test chart produced in reflection by an external surface of the glazing on an outside of the glazing; computation by at least one processing unit of quantities representative of the quality of the glazing based on the at least one image generated; and comparing values computed for the representative quantities with respect to reference values. The test chart exhibits a pattern including elements of closed contours arranged periodically. The representative quantities are representative of a deformation of the image of the test chart produced in reflection by the external surface of the glazing on the outside of the glazing, and the computation of a representative quantity includes the computation of a density of the elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.