👀Active illumination night vision goggles work by emitting near-infrared light and capturing it with a camera. They are affordable but have limitations such as a disorienting delay and limited range.
🌟Military-grade night vision goggles use image intensification technology to amplify existing light. They provide a clearer and wider field of view, have no delay, and can see the stars clearly.
💲Military-grade night vision goggles, such as the GPNVG-18s, are the most expensive in the world, retailing for over $40,000. They were used in the SEAL Team Six raid on Osama bin Laden.
🔒The technology and manufacturing process of military night vision goggles are highly secretive, and the Navy limits the information they reveal publicly.
👁️Night vision goggles measure their resolution in line pairs per millimeter, which describes their ability to resolve details in a scene. Military-grade goggles can resolve at least 64 line pairs per millimeter.