Method for analyzing the quality of a glazing unit
US8861831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2010 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jun 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/9586
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for analyzing quality of a glazing unit including: generating a digital image of a test chart produced in reflection by an outer surface of the glazing, the test chart presenting a pattern composed of a plurality of contrasted elements defining between them interface lines; calculating quantities representative of the glazing from the image generated, the calculation being carried out by a processing unit; and comparing the calculated values for the representative values relative to reference values. The representative quantities are representative of a deformation of the image of the test chart produced in reflection by the outer surface of the glazing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.