An Image Intensifier is a device that enhances low-light images, making them clearer and more visible. It works by converting incoming light photons into electrons, which are then amplified and transformed back into visible light. This technology is commonly used in night vision devices, allowing users to see in dark environments, such as during nighttime operations or in poorly lit areas. These devices are often found in military applications, surveillance systems, and even in some medical imaging tools. By improving visibility in low-light conditions, image intensifiers play a crucial role in enhancing safety and effectiveness in various fields, including law enforcement and wildlife observation.