Military night vision goggles are used by the army, navy and air forces of different countries, today such equipment is also used by the application of many law enforcement and security personnel (fire). However, people can also buy night vision goggles for personal use, but usually do not have the same specifications you will find the military versions. Because the military night vision goggles have become an expected part of modern warfare is that they allow the user to see the pictures in the dark, which may not only be seen with the naked eye. Also the military versions have a special feature where they can focus on the user sees the image of each eye separately, which means that they are able to maintain depth perception when viewing images at any time. How night vision works: Most of the night vision goggles consist of image intensifier tubes, a waterproof body and mounting mechanism. Work in the near infrared bands to detect environmental light of the reflection is seen. image intensifier tubes for night vision goggles then extended to a weak light, using the photoelectric effect. Tube, the photons of light in to a flap that opens up the number of electrons. These electrons are then amplified Surge more electrons. A powerful electric field to pull electrons toward the screen mesh phosphor bronze, which produces light point of electron impact. This allows the screen to phosphorus produces a bright image. Military night-vision goggles are generally used as artificial light during the military operations, and fight night. This increases the safety of soldiers, much as they can move without detected by their instruments of enlightenment. The military uses two main types of night vision goggles: †Image Intensifiers Image intensifiers work by expanding the ambient light (flashlight enemy, moonlight, starlight) so you can see, as you would in the day. But the problem is that when a very bright light source appears, your picture overwhelmed. Their advantages are low weight, price, size and detailed images they bring, but consumes little electricity. †Infrared Lenses Infrared lenses to convert the infrared spectrum of visible light, but retail prices, which is low. He also has difficulty distinguishing between two objects that have the same level of heat (which is a question of who is the enemy and who is a friend). In some cases, night vision goggles can use infrared to see through walls. These particular military night vision goggles take any light immediately in the vicinity of where they are, and expanded to increase the image of thousands of times using an image amplifier. night vision goggles work of the photoelectric effect, which is due to photons collide with the indicator plate. When photons hit the metal, then produces electrons which are then supplemented by further causing more electrons can be produced that ignites the screen in front of the user eyes. In some cases, all the user needs to illuminate the entire field of vision is a star high in the sky. You will often see these devices used to report on wars and the image we often see on television, where they used to be green.
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