Glazing with very little double imaging
US8980402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2010 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Mar 14, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24628
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a curved glass pane, made of float glass, the area of a main face of which is greater than 1.5 m2 and the product of its two depths of bending is greater than 3000 mm2, and such that its point located on the normal to its surface passing through its center of gravity has a radius of curvature of less than 3 m in any direction, the variation in its thickness in the longitudinal float direction being less than 10 μm over 500 mm. This pane may be assembled into laminated glazing of the automobile windshield type. Such a windshield has a very small amount of double imaging even when it is fitted into the vehicle so as to be close to the horizontal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.