subject: Benefits Of Night Vision Goggles [print this page] Night vision goggles are one of the hot inventions of devices in the last century, enabling people to see the objects in the vicinity at night. Night vision goggles are mainly used for military purpose, and help protect and guard the armed personnel from possible dangers in the battle field.
The older generation of night vision goggles uses infrared light to cast over an area, so that people can see through the vision goggles to obtain the images of the targets. This brings the military forces benefits if the enemy doesnt have the same infrared vision goggles. But if enemy has the same devices, the night vision goggles become useless.
The newer generation of night vision goggles is the complicated electronic image intensifier. This device obtains very dim light from the vicinity, and amplifies the weak light signals to be visible ones through the small screen fitted on the vision goggles. This type of newer vision goggles doesnt emit infrared light, so enemies wont find easily, thus making the night vision goggles a safer alternate.
Night vision goggles do help illuminating peoples eyes at night; meanwhile there are some drawbacks for all vision goggles. People could not see a very clear image under all circumstances, and people would misjudge the distance of objects as bigger ones seem closer than smaller ones. In addition, wearers of night vision goggles need long time to re-adjust eyes to the normal light after taking off the devices.
