Head-up display capable of adjusting imaging position
US11579447B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 6, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Mar 1, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head-up display capable of adjusting an imaging position is provided. The head-up display includes an image generation module, a reflector, a holographic diffraction optical element and a control unit. The image generation module is configured to display and project an image. The reflector is configured to reflect the image and further project the image on a transparent screen through the reflector. The holographic diffraction optical element is disposed on the transparent screen to reflect the image to a visible range of the user's eyes. The control unit is coupled to the reflector or the transparent screen to adjust the viewing angle of the holographic diffraction optical element having a pre-determined angle with the reflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.