There are many different types of night vision devices, so it’s important to know how to choose the right one. The main types include monoculars, binoculars, and goggles.
The type of goggles you choose will depend on how you plan to use them and what kind of budget you have. These goggles can be incredibly useful, especially for hunters and other users who spend a lot of time in the dark.
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1. The Lenses
Whether you’re looking for a set of binoculars or night vision goggles, the lenses you choose play an important role. They determine if you can see your surroundings, how much you see and even where you can look.
Image enhancing goggles make low-light scenes easier to view by upgrading the light photons that enter them. This process is also sometimes referred to as light amplification or image intensification.
The photons that enter the objective lens are converted into electrons by a photocathode and then accelerated by a photomultiplier. The electrons then hit a phosphor screen, which creates tiny flashes of light.
These flashes of light make up the traditional night vision image, which is usually green because green is the easiest color for the human eye to differentiate. The phosphor image is then viewed through another lens, called the ocular lens.
2. The Weight
Night vision goggles are a large and bulky device that can be quite heavy. This can cause significant strain on the neck of the user.
Fortunately, there are now lighter, less bulky devices that offer the same performance as more traditional devices. These are called Enhanced Night Vision in Eyeglass Form Factors or ENVision.
These devices are also more compact and easier to carry than traditional ones, making them a great choice for anyone who wants to bring a night vision goggle into the field without adding significant weight to their backpack or bag. However, you’ll want to ensure you don’t compromise on the quality of optics or battery life.
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3. The Gain
Night vision goggles use an image intensifier to amplify ambient light, which can be detected by digital image sensors. The device’s image can then be viewed either with the eye or through a digital display.
Some night vision devices are equipped with infrared illumination, which enables the user to see objects in total darkness without using visible light. This technology is especially useful for people who want to operate under a wide range of conditions, including those with limited or no available natural light.
Thales offers a wide choice of night vision devices that suit different operational scenarios. For example, infantry soldiers deployed in any type of conventional or asymmetric conflict need featherweight, ultra-compact goggles that can perform well in a variety of unpredictable situations.
4. The Durability
Night vision is a great way to get a better look at the world in the dark, and there are plenty of options out there. You want to make sure you choose the right night vision goggles for your needs and use.
Durability is an important factor in your choice of night vision goggles. You don’t want to purchase something that will flop around or be damaged by rough handling.
In addition to the device itself, you’ll want to consider the mount and helmet you’ll be using with it. These will be a major investment, and they should be durable to stand up to the rough conditions you may be in when using your night vision goggles.
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5. The Generation
The generation of night vision goggles is a critical aspect to consider when choosing the right device. This is because the generation affects how long you can see things.
The older the device, the lower its sensitivity. That is why it’s important to choose a Gen 2 or 3 device.
Another consideration is the type of technology used in the device. Typically, image intensification is used in devices that are meant for low-light conditions.
Ingenious, this technology allows a low-light scene to appear brighter by amplifying its light signal. It does this by transforming light photons into electrons, then back into new photons.
These goggles can be a good option for beginners who want to experience the power of night vision. It’s also a great choice for those who enjoy hunting and other activities that require high-resolution imagery.