Windshield for head-up display system
US6636370B2 · kind B2 · utility
17Cited by
54References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1998 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3163
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A windshield for a head-up display system has a pair of opposing major surfaces that are nonparallel to one another in selected areas. Light rays directed toward the nonparallel area of the windshield are reflected from the outer and inner major surfaces of the windshield and directed toward the eye of the observer as parallel or superimposed light rays to eliminate ghost images when viewing images projected by the head-up display system through the windshield. The interlayer blank utilized to make the windshield has a non-uniform thickness profile with a tapered thickness positioned in the selected areas of the windshield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.