Night vision goggles use an electro optical imaging device which is able to detect both visible and near infrared energy sources and then is able to intensify these energy sources further in order to provide a visible image for viewing at night. Sometimes people will often refer to them as NVG's instead. Today's night vision goggles can either be held by a person in their hands or be mounted on to a helmet.
Although the general public are able to obtain and use these night vision devices, more often than not they are used by law enforcement agencies and the military. Initially these devices were used by the military forces during the Vietnam war and have gone through many stages of development since then and currently the US Military are now using a 4th generation version of the ones originally developed.
The prices of these night vision goggles can cost as little as a couple of hundred dollars to some of them costing around $6,000. However there are some 3rd generation goggles which are of a very high quality and can cost less than a $1,000 and are more widely available to the general public than the 4th generation ones are.
There are two kinds of night vision goggles in use today and these are the passive and active. Passive night vision goggles are able to pick up any light within the immediate area where the person using them is located and then magnify this light several times over by use of the image intensifier.
You will often see this type of night vision being used when reporters are reporting from a war zone and the pictures that you seen on the TV in front of you will have a green tint to it. The reason why green is used in most night vision devices is because the human eye is very sensitive and is able to discern things more clearly when it comes in various shades of green. Plus using green helps the user's eyes to readjust more quickly once the goggles have been removed compared to other colors that have been tried.
The other type are active night vision goggles. They project an infrared light (the same which you will find in your TV or satellite remote control). They then produce an image to the user's eye because of the light that has been reflected back.
However in order for these to be really effective an image enhancer may be required to amplify the light further. Today this kind of night vision device is often used in home video cameras and is certainly the most suitable for us to use in order for us to see adequately in the dark at night. But it should be noted that there are some night vision goggles which actually combine the two methods together.
Technology has already tried to create such devices to make a task as easy as it could be. Similar to the ordinary sunglasses that people are using; who would have imagined that in years to come could be invented for home and work purposes. This revolutionized invention introduced in the 20th century has proved incredibly useful to countless people and military operations because of the more usage specs that enable a user to maximize its possibilities. Night vision goggles are very ideal for fishing, viewing in low light or for surveillance uses. Night Vision Goggles can even be used by regular homeowners to protect their family from any harm in the dark. We all know that sometimes, unwanted thieves can break inside a dwelling while the residents are asleep. Without the burglar knowing, a people in the house can see what's going on and they can manipulate the situation to start to get help. Military and police groups also benefit from the night vision goggles particularly if they are on duty in low light. This kind of equipment is very important because it will get to a vision of even more then 60-meter length range. are also extremely important for nighttime hunters. One will be able to switch on the night vision and see through a woods while not bothering the prey making the hunting much easier to complete. Pre dawn fishers are also be another party to appreciate this equipment for many sea animals are even more difficult to catch at night since they are very untolerant to the movement of the water and they can sense when someone's up for them. With night vision goggles, a lot of tasks are getting done in less time for a more useful life.
Both Ricky Lim & Marcus Rheinold are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
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