Don't spend a fortune! Hot Deals on Cheap Night Vision Goggles!
Expensive or cheap night vision goggles are a great asset for those who enjoy going on night time trips, your price point depends on what you plan to use them for. There are many reasons to want night vision, such as viewing landscape or wildlife. Whether you go out to explore caves or you go fishing, boating, camping, or hunting, you will need a pair of goggles that will let you see in the dark. It's next to impossible to get an image with a regular pair of binoculars, and using flashlight along with other lighting devices might scare off any signs of life around you.
A night vision binocular is useful when you want to go around undetected, while still get a clear image. Just like the beasts that have developed their own means of seeing in the dark, people have tried to come up with ways to adapt. The answer came in the form of light amplifying goggles. Working in a similar way to a digital camera, they can be big, small, cheap or expensive, but just as powerful. Once you decide what you need your night vision binoculars for, you're all ready and set to select the right pair. With the perfect night vision you might even have a better view than any night time creatures.
1. How night vision works? The science behind it.
If you are thinking of buying night vision goggles, you are probably wondering how they are able to turn night into day. Night vision goggles will catch and amplify whatever light may be around you. Whether its moonlight or starlight, but also infrared spectrum light and send it back to your eyes. A pair of quality night vision binoculars is equipped with an infrared illuminator, which will increase the intensity of the infrared light.
Basically, the ambient lighting will be amplified through a chemical and/or electrical process within the binoculars, turning the photons into electrons. The electrons are then put into contrast with a phosphorus screen, changing the newly formed electrons into visible light, allowing you to see in the dark. The resulting image will have a greenish hue, but it will be a clear recreation of the scene you have in front of you.
Not all systems output a green image, green/black was chosen because our eyes see more detail and contrast in those colors. However, new systems including some of the cheap night vision goggles will produce a black and white image that is often less tiring to the eyes even if some ability to discern detail is lost.
While these may not have the same magnification abilities as daytime binoculars, they still offer a good view at a fair distance, considering the lighting. At the same time, while the distance is shortened, the image is clearer. You will not be able to see in the night without a good pair of night vision goggles because they are specially made to allow you to see at a fair distance in low-light conditions.
Night vision binoculars will show a different image depending on the lighting conditions. If there is not even a star in the sky, the night vision binoculars won’t be able to show you anything – it’s not a magician. The lower the ambient light, the stronger the goggles will have to be. This is why you need to be careful in choosing the night vision device you plan on taking with you on your little night time escape.
2. Types of Night Vision Technology
Based on the technology used, you can see up to 200 yards away from you on a cloudy, moonless night. Depending on the technology, night vision can work in two separate ways.
A. Image Enhancement
image enhancing night vision device
This process works by collecting any tiny particles of light, including the ones from the infrared light spectrum, and amplifying them to the point where we can see the image more clearly. While these corpuscles of light may be invisible to the naked eye, they are detected by the goggles and used as a light source.
Image enhancement has the ability to amplify the light that is reflected by the object, while the infrared spectrum detects any radiation that is emitted by the objects. If the objects are at a non-cryogenic temperature, they will spontaneously start glowing in the spectrum’s infrared region.
Image enhancement allows you to create something out of almost nothing. It can be used for various outdoor activities for the industrial and forensic purpose. The lower infrared spectrum can even reveal a chemical compositional difference that is not really evident under natural lighting.
B. Thermal Imaging
night vision binoculars
As opposed to image improvement, thermal imaging works by using the upper part of the infrared light spectrum that turns heat into visible light. Warm bodies emit their own heat, which the binocular sees as a light source. A live being will emit more heat than, say, a building or a tree and appear as much brighter to the night vision goggles.
Here is how night vision binoculars use thermal imaging to create an image:
The infrared light that is emitted by the object is focused by a special lens within the binocular.
The light is scanned by the infrared detectors, creating a pattern of the object’s temperature called a ‘thermogram’ The whole process doesn’t take more than 1/30 of a second. Constructing information from heat that is easily seen from miles away.
The thermogram is transformed into an electrical impulse, which then sends the image against the phosphorus screen, presenting you the image.
Now that you know these types of technology, you can go to the next step of choosing the right pair of binoculars.
3. Buying Guide for night vision binoculars
There are a few factors you first need to consider before buying night vision binoculars.
A. Image quality
When you purchase a pair of night vision binoculars, one of the first things you will need to consider is the image it offers. It needs to be clear, with little aberration, an excellent resolution and also a high definition. Even a pair of cheap night vision goggles will provide you with a green monochrome picture of the scene in front of you, with a blur towards the edges but clear at the center. The higher the resolution the easier you can detect details of objects rather than just a simple shape.
The darker it gets, the more difficult it will be for you to get a clear image while utilizing night vision. If the ambient light is constantly dropping you might have to increase the gain of the binocular. At the same time, if the lenses for your binoculars are the long type used for viewing far into the distance, you will need to bump up your night vision binocular gain. The reason for that is because a longer lens will not have the ability to transfer light the way shorter lenses do. You also need to be aware of the fact that increasing the gain of your night vision binoculars won’t necessarily improve the range or quality of the image. If you are in an area with housing or street lights, the system might get overloaded, and your viewing abilities will suffer.
When you want to see an image that is at a greater distance from where you are standing, your night vision binocular system needs to be able to magnify a potential image, the available light, the resolution and the gain of the product. A powerful, long lens will have the ability to magnify the image, but as mentioned, it will not be able to transfer the light as well as a shorter lens. If you are in a place with less light, you will need to improve your gain and consider moving closer. If you use a high-speed lens with a lower magnification, your binoculars will be able to capture more light, and thus, the range will also improve. Most night vision binoculars users are satisfied with a 1x to 3x the size of the image, making it easy for them to view an object or subject without getting disoriented.
4. 5 Tips on buying binoculars with Night Vision
One needs to be careful when buying their first pair of night vision binoculars.
- Check for other uses: Many purchasers buy a pair of night vision binoculars for one specific trip or purpose, but you need to consider all of the places you could benefit from a night vision. A pair of night vision binoculars can be utilized for observing animals, birding, angling, stargazing and much more! Make it count!
- Be careful on the price tag: Night vision binoculars can run upwards of $15,000 for the top military spec quality. However there are many cheap night vision goggles or devices that use low-light sensors to provide a good image which will cost you less than $500, and you will definitely see what’s going on in the shadows.
- Be careful with second-hand devices: While buying a used binocular might sound like a better alternative for you, keep in mind that the lifespan of such a device is finite because of the image enhancing tubes. It’s like utilizing a light bulb: it won’t be able to keep on burning forever.
- Know what you are buying: Before you get a pair of night vision binoculars, read about what the product offers and discover all the pros and cons. By going through some reviews, you will get an idea from other purchasers on what the binoculars offer and what they lack.
- Websites like Amazon.com are among the top global trustworthy websites and a great place to make your purchase.
By knowing all these, you are now a professional binocular buyer!