Night Vision Binoculars
Want to see in the dark?
Whether you require a tool for security, wildlife watching, or law enforcement purposes, night vision binoculars might be what you are looking for. Night vision binoculars have a singular purpose: to allow you to see in the dark. The human eye is only able to utilize visible light of the spectral range. Many night vision binoculars compensate for this by incorporating active infrared and/or thermal imaging technologies. While there are many brands and price ranges to choose from, night vision binoculars all work on the same premise and have similar parts: an objective lens, an eyepiece, a power supply and an image intensifier tube or photocathode tube.
The lens gathers existing, available light. A larger lens will have better capability for gathering light. That light then goes through the intensifier tube or photocathode tube where it changes from photon to electron, is amplified through an electro-chemical process, and is projected onto a phosphorus screen. The viewer is now able to see the greenish colored image. In some of the more expensive binoculars, the image is black and white.
There are four generations of Night vision binoculars
. Generation 1 uses the technology described above and accounts for most of the night vision devices in use worldwide. Gen 1 binoculars are reasonably affordable and come with varying features. Gen 2 binoculars are used primarily in law enforcement and by other professionals. The main difference is the addition of a micro-channel plate or MCP, which amplifies the electrons even more, producing a sharper, clearer image. The better image is reflected in a higher price, typically up to $1000 more than a Gen 1 binocular. Generation 3 utilizes a sensitive chemical, gallium arsenide, in the intensifiers tube producing an even brighter, sharper image. These binoculars are used primarily by military and law enforcement and can cost up to $11,000. Finally, the most recent generation, Gen 4 has superior range capability, unparalleled image resolution, and can operate in extremely low light conditions. The Gen 4 binocular will also cost you around $16,000.
When purchasing Night vision binoculars, there are a few things to consider: intended use, price, longevity, and local regulations. Depending on what type of activity you intend to engage in, you may not need the most sophisticated device. A Gen 1 pair of binoculars may be suitable. On the other hand, if you are willing to spend more money and want something with higher capabilities, then look at purchasing something in the Gen 2 category. Also, consider how long you plan to use your binoculars. It may be worth it to spend a little more to get something with a better warranty or better construction. The last thing to consider is local regulation. Some countries have restrictions on what type of optics are importable or exportable. You may be required to apply for permits from federal authorities prior to purchasing or selling night vision binoculars.
The variety of Night vision binoculars is huge. Make sure to do your homework. Research brands and read reviews prior the purchasing. Once you have your binoculars, have fun, and enjoy!
Related Reading:
Celestron SkyMaster Giant 15x70 Binoculars with Tripod AdapterCelestron and ;s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use - especially over long distances. Each SkyMaster model features high quality BAK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. The 15x70 version is one of the most popular models in the series. It offers serious large aperture light gathering in an affordable and reasonably lightweight configuration.
Categories: Binoculars, Home Security, Interesting Tags: Binoculars, Night Vision Binoculars, wildlife