Head up display with night vision enhancement
US5414439A · kind A · utility
340Cited by
19References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1994 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Jun 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motor vehicle is equipped with an infrared camera for viewing roadway conditions in terms of a thermal image, and outputs a video signal to a head up display (HUD) which projects the camera view to the operator via the windshield or other combiner to display a virtual image in the operator's field of view. The HUD is configured to magnify the image to the same size as the visual or real scene, and compensates for camera and windshield distortion. The virtual image is presented above or below the real scene or may be superimposed on the real scene. A video processor allows selection of only the warmest objects for display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.