| Night Vision Binoculars are specialty night binoculars | | | | binoculars use gallium arsenide in the photo cathode |
| which excel in viewing under low light or no light | | | | that has high electronic velocity that helps in |
| conditions. Night viewing binoculars are standard | | | | accelerated conversion of photons to electrons. |
| binoculars enhanced for night viewing through efficient | | | | 3. Thermal night vision binoculars: Heat produces |
| use of available technologies such as thermal imaging | | | | enormous quantity of infrared. These night binoculars |
| or image intensification. | | | | use this distinguishing property, and have infrared |
| Our human eye is capable of seeing only the visible | | | | detectors within them that detect accumulation of |
| part of the light spectrum. We also have infrared light | | | | infrared and create an image. The images produced |
| that has wavelength greater than visible light but our | | | | are black, white and gray. |
| eyes can not see infrared light. Since infrared light is | | | | Night vision binoculars are a must-have accessory for |
| there and if there is some technology to utilize the | | | | astronomical viewers, militia, hunters, and trekkers as |
| infrared light to enable us to see the images, then we | | | | their wanderings and operations extend to well after |
| are talking. | | | | the dark. |
| Technological breakthroughs brought about infrared | | | | They come in a variety of designs for hand as well as |
| binoculars in the hands of the public. They work in a | | | | tripod use, and recently head mask types that would |
| simple yet sophisticated way. Infrared light enters | | | | not require hands for holding your chosen night |
| through the objective lens and it hits the photo cathode | | | | binocular. Military personnel prefer these hands free |
| that has high-energy charge, which accelerates the | | | | models since they can use them without hands which |
| charge across the vacuum inside the image intensifier | | | | means that they can use their hands for weapons and |
| and then it strikes the screen where the image gets | | | | other equally important stuff. |
| focused. | | | | All these models have outer rubber coating that |
| There are three types of these night vision binoculars | | | | prevents damage and provides grip while using. They |
| that use infrared light from various sources. They are: | | | | have nitrogen for water and moisture proofing. The |
| | | | optics used are multicoated and multilayered to allow |
| 1. Image intensifier Night Vision Binoculars: These are | | | | minimum reflection or minimum loss of light therefore |
| termed as first generation instruments that use | | | | producing high quality sharp images. |
| available visible light from the stars, moon and less of | | | | The recent models of night vision binoculars come with |
| infrared light to focus the objects. They are affordable | | | | two electronic intensifier tubes that aid in better quality |
| and are the most commonly used instruments. The | | | | images. Night binoculars also come with names like |
| resulting images are greenish. | | | | night owl optical instruments. The name differs by the |
| 2. Digital night vision binoculars: These instruments use | | | | brand. There are many varieties for you to choose |
| infrared illuminator and hence can be used even in | | | | from, and each differs in the resolution power and the |
| absolute absence of light as they produce infrared light | | | | size of the objective lens. All these instruments are |
| waves within themselves. These can be used both in | | | | compact, easy to carry and maintenance free. Is the |
| the presence as well in the absence of light. They | | | | night really meant for sleeping? |
| produce black and white images. These night | | | | |