Head-up display apparatus
US11130404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2018 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Mar 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0185
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A head-up display apparatus 200 includes: a projection optical system 30 that projects a virtual image; an environment monitor portion 72 as an object detection part that detects an object present in a detection region and detects a distance from the projection optical system 30 to the object as a target distance; an arrangement change apparatus 462 as a projection distance change part that periodically changes a projection distance of a virtual image from the projection optical system 30; and a main control apparatus 90 and a display control portion 18 as an image addition part that adds a related-information image as a virtual image by the projection optical system 30 to the detected object at timing when the target distance substantially matches the projection distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.