Night vision devices and methods
US9507153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2012 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jun 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Image-intensifying devices (for example, glasses, goggles, etc.) suitable for certain commercial and entertainment applications by virtue of their light weight, small size, and economical production are disclosed. In one embodiment, input light passes through an Amici reflector, which is used to adjust the orientation of the intensified image to register it with the real world. In another embodiment, input light passes through at least two Amici reflectors, which are used to adjust the orientation of the intensified image to register it with the real world. In alternate embodiments, at least one Amici reflector folds the light at a non-perpendicular angle and/or input light is rotated by an angle other than (180°). Other embodiments include a field-flattening lens disposed in front of an image intensifier. The intensified image is then sent through a projective lens assembly to reach the viewer's eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.