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In October 2014, Prox Dynamics unveiled a version of the PD-100 Black Hornet with night vision capabilities, with long-wave infrared and day video sensors that can transmit video or high-resolution still images via a digital data link with a 1.6 km (1 mile) range. [citation needed] Over 3,000 Black Hornets had been delivered as of 2014.
Active infrared night-vision combines infrared illumination of spectral range 700–1,000 nm (just over the visible spectrum of the human eye) with CCD cameras sensitive to this light. The resulting scene, which is apparently dark to a human observer, appears as a monochrome image on a normal display device. [ 15 ]
A night-vision device (NVD), also known as a night optical/observation device (NOD) or night-vision goggle (NVG), is an optoelectronic device that allows visualization of images in low levels of light, improving the user's night vision.
Hidden cameras are often considered a surveillance tool. The term "hidden camera" is commonly used when subjects are unaware that they are being recorded, usually lacking their knowledge and consent; the term "spy camera" is generally used when the subject would object to being recorded if they were aware of the camera's presence.
AN/PVS-4 (Night Vision Sight, Individual Served Weapon, AN/PVS-4) is the U.S. military designation for a specification of the first second generation passive Night vision device. The AN/PVS-4 first saw widespread use during the Gulf War and later some deployment in the Iraq War and has since been replaced by modern third-generation weapon sights.
The AN/PSQ-20 Enhanced Night Vision Goggle (ENVG) is a third-generation passive monocular night vision device developed for the United States Armed Forces by ITT Exelis. It fuses image-intensifying and thermal-imaging technologies, enabling vision in conditions with very little light. The two methods can be used simultaneously or individually.
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