Display apparatus for a vehicle
US6731436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Dec 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/014
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
For displaying a virtual image without hindering from seeing a front view, a display apparatus for a vehicle includes a storage device 21b for storing a distance information of superimposed viewing, the distance information indicating a distance between an obstacle in the view ahead a vehicle and the vehicle when the obstacle and, a virtual image of a picture projected on a windshield are viewed as a superimposed front view; distance measuring means 40 for measuring a distance between the vehicle and the obstacle; judging means 21a1 for judging whether or not the virtual image is superimposed on the obstacle; and control means 21a2 for stopping the projection of the virtual image when it is judged that the virtual image is superimposed on the obstacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.