Night Vision Goggles
Night Vision Goggles – These devices work by collecting tiny amounts of light, including the lower portion of the infrared light spectrum imperceptible to our eyes, and enhancing it to the point that we can easily observe the images. Night vision goggles were originally designed for and still extensively used by the military, for location of enemy targets at night, as well as for navigation, surveillance and targeting. Police and security often use various types of night vision goggles and scopes with both thermal-imaging and image-enhancement technology for surveillance. Many businesses have permanently-mounted cameras equipped with night vision capabilities to monitor the surroundings. Hunters and nature enthusiasts use night vision goggles and scopes to maneuver through the woods at night.
Keep in mind that many of the “bargain” night vision goggles and scopes use Generation 0 or Generation 1 technology, so these devices may provide disappointing results if you are expecting image-enhancement capabilities similar to that used by professionals.
Generation 2, Generation 3 and Generation 4 night vision goggles and scopes are more expensive but they provide significant improvement in performance and reliability. See Night Vision Scopes Generations post for more information. Any night vision goggle or scope can benefit from the use of an infrared illuminating device for very dark areas where there is almost no ambient light available. Night vision goggles and scopes image-intensifier tubes are put through rigorous tests to see if they meet requirements set forth by the military. If the tubes meet the stringent military specifications, they are classified as MILSPEC, whereas, tubes that fail to meet all military specifications, are classified as COMSPEC.
Night vision goggles can be handheld, however, they are most often worn on the head. Night vision goggles have two eyepieces and configured with either a single or two image-intensifier tubes depending on the model,. Night vision goggles are excellent for continuous viewing, like walking around in the dark.