Method and apparatus for displaying information with a head-up display
US6731435B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0159
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A vehicle (10) has a camera (12) generating infrared images of a scene ahead, and a display (16) which reflects images from the vehicle windshield (17). Images from the camera are displayed at night, and operational information about the vehicle is displayed during the day. The display includes a mirror (41) with day and night reflective surfaces (162, 163) that have different optical characteristics and are arranged at an angle. The mirror is pivoted to transition the display unit between modes. In an alternative display (216), radiation from the two-sided mirror travels directly to a driver, without reflection from a windshield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.