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3D animation of an Image Intensifier Tube

How a Photonis Image Intensifier Tube works


Night Vision Ruggedized Camera - Brochure

A CMOS Driver Enhanced Vision unit provides improved situational awareness and long range target identification. The CMOS sensor allows 24/7 high definition digital vision from daylight through low light conditions. The Night Vision Ruggedized Batcam is available in 3 versions: in monochrome, powered by the LYNX CMOS sensor, in colour powered by the Kameleon Color CMOS sensor or in an Extreme Low Light version, powered by EBCMOS sensor.


XD-4 Image Intensifier Tube

With more than 500.000 image intensifier tubes sold, the Photonis XD-4 image intensifier tube is a proven performer. The XD-4 is found globally in operations. With a good signal-to-noise ratio (SNR), a high figure of merit (FOM) and small halo, the XD-4 is the image intensifier tube that allows users to win through the night by providing quality performance at a competitive price.


XR5 Image Intensifier Tube

As the evolution of the trusted XD-4 image intensifier, the XR5 image intensifier offers an improved performance. With higher figure-of-merit (FOM) values and better signal-to-noise ratio (SNR) the XR5 image intensifier tube delivers the users a better performance throughout the night.

Technical Note


Auto-Gatin (ATG) function was designed to improve the BSP feature to be faster and to keep the best resolution and contrast at all times. It is particularly suitable for Aviator’s Night Vision goggles, operations in urban areas or for special operations...

Technical Note

Black Spots

Black Spots are cosmetic blemishes that may originate from fixed particles inside the I2 tube or in the fiber optic. Small size black spots in the I2 tube are inherent to the manufacturing process and do not affect the performance or reliability of the device...

Technical Note

Development of Night Vision

The first night vision devices were introduced during World War II. Generation 0 devices did not actually amplify ambient light, but rather allowed a user to see near‐infrared light. These so‐called active devices required the use of a large infrared light source to illuminate targets, and consequently were easily detectable by opposing forces using similar equipment...

Technical Note


Image Intensifier Tubes work by collecting low levels of light, amplifying them to levels that can be easily observed. The tube gain (which is also referred to as brightness gain or luminance gain) is the magnitude, or number of times the image intensifier amplifies the light input. Gain is calculated as the ratio of light output divided by light input and typically has a value1 of 15,000 cd/m²/lx, with a maximum of 22,000 cd/m²/lx. In all night vision systems, the gain is reduced by the system’s lenses and is affected by the quality of optics and filters, therefore system gain is an important measure of performance for the end user...