Thermoplastic sheet for a heads-up display system
US9857571B2 · kind B2 · utility
0Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Oct 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0194
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A thermoplastic sheet for the manufacture of a transparent motor vehicle or building glazing intended for the display of information, in particular of a laminated glazing, the sheet including a compound exhibiting an absorption band in the ultraviolet region and of which the diffuse reflection spectrum as a function of the energy of the incident radiation is characterized by a V value on the reflection curve, determined by the point of intersection between the tangent (1) at the inflection point of said curve and its asymptote (2) at the higher energies, of between 3.06 and 3.65 eV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.