Aperture for night vision goggles for use in aircraft simulator or other simulators
US9651719B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2013 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Jun 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B9/003
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An aperture mechanism for night vision goggles (NVG) has a first end, a second end, a lens engaging portion, and a cone portion. A lens engaging portion has a recession allowing attachment of the aperture mechanism to a light admitting end of the NVG. A cone portion is opposite the lens engaging portion. Together the lens engaging portion and the cone portion form an aperture. The aperture mechanism increases the depth of field of the NVG for applications involving small object-to-goggle distances, such as in simulators or simulator environments. In a simulator system, the aperture mechanism can be attached to NVG such that at least a portion of light from a display screen is blocked. The light output of the display screen can be increased such that the depth of field remains higher but the image produced does not become darker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.