Apparatus and method for providing both day and night vision simulations
US7201483B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 28, 2005 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jul 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3155
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for providing both day vision simulations and night vision simulations includes a projector that seamlessly provides both night and daytime training modes. The projector includes two independent light sources, with an embedded night vision filter affixed inside the projector proximate one of the light sources to achieve the night training mode. The operator will select one light source according to the mode desired (daytime training mode or nighttime training mode). Each light source may easily be selected, and the light paths from both of the light sources may have a common path when exiting the projector for efficient operation between modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.