Compact head up display with wide viewing angle
US7619825B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2004 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Sep 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an optical display system and method for producing images and presenting the images for observation in combination with an observer's visual exterior view of an outside scene. The optical display system may include an image source for projecting an image, and a curved beam combination mirror (CBCM) or beam combination mirror (BCM) for reflecting the projected image toward an observer for observation. The image source may be a transmissive LCD, a reflective LCD, a digital micromirror device, a laser display, or the like. The CBCM or BCM may be positioned so that the observer, in a line of sight, may see a visual exterior view of an outside scene through the CBCM or BCM and the projected image in the CBCM or BCM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.