Photonis
From Night Vision Wiki
Photonis is an European manufacturer of image intensifier tubes and night vision devices located in France. Photonis was founded in 1937.
Image Intensifiers
Photonis manufactures second generation image intensifiers exclusively. However, the company has continuously improved the technology, with the higher end of their lineup competing, if not outperforming, modern third generation image intensifiers.
European made tubes are very expensive, with Photonis being no exception. When comparing to prices of U.S. made thin film Gen. 3 tubes, they often cost almost twice as much for the same performance.
However, Photonis image intensifiers feature higher shock rating and exceptional dynamic range in mixed light conditions, e.g. urban environments.