Optical system for day and night use
US6195206A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jan 12, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/2014
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A helmet mounted display for mounting on a helmet includes a supporting structure removably mounted at at least one point to the helmet, a visor, mounted on the structure, and at least one optical system, for projecting an image on the visor from the side of the pilot's head. The at least one optical system is side mounted on the supporting structure, and includes a source of light and a digital reflective device or a reflective addressing device. The digital reflective device contains a plurality of micromirrors for deflecting the light source in a pixelated manner via a plurality of pixels. The deflection of the micromirror can be controlled as a function of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.