Systems and methods for utilizing imperfectly manufactured image intensifier tubes in night vision systems
US8902523B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 27, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Systems and methods are provided for modifying blemished image intensifier tubes that otherwise would be inappropriate for use in strictly specified night vision equipment. The systems include masks and display elements designed and structured to be oriented in a variety of directions so as to cover over and hide blemishes within an image intensifier tube. Masks may be provided utilizing glass discs that are ground, polished, and etched with particular geometric masking elements and fixed over the display end of the image intensifier tube. Electronic components may be presented as display elements over the opaque portions of the masks. Methods for manufacturing the masks are described that detect and characterize the location and size of the blemishes and select mask type, size, and orientation for manufacture and use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.