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Do Night Vision Devices make any Noise when Turned ON

We have now entered into the third generation of the night vision devices. Night Vision devices were introduced back in the nineteenth century during world war 2. The use of the night vision was mainly for military purpose. Human beings have an enthusiastic and curious nature. We cannot watch in the dark but we have the curiosity to watch at night. We perused our curiosity and invented the night vision devices. 

We have now entered into the third generation of the night vision devices. Night Vision devices were introduced back in the nineteenth century during world war 2. The use of the night vision was mainly for military purpose. Human beings have an enthusiastic and curious nature. We cannot watch in the dark but we have the curiosity to watch at night. We perused our curiosity and invented the night vision devices. 

Do Night Vision devices produce noise?

Night Vision Goggle Sound Effect

The night vision devices of the older generation, Generation 0 and Generation 1, produce sound during their operation due to the use of old technology. That sound is just like the sound of high voltage transformer under the operation. The night vision devices and goggles of 2nd and 3rd generation do not produce any sound when they are turned on. Some older devices produce a sound as we hear upon the start of a backup battery or a tube TV. According to the sources, the night vision devices of the current generation do not produce noise. Conclusively, it can be said that older night vision goggles produce sound when turned on while the night vision of goggles of the current generation does not produce high-pitched audible sound.

If we look at the purpose of the night vision goggles of the current era, any sound does not suit them. For example, you are on a hunt and you want a silent atmosphere for the hunting purpose. If your night vision goggle produces sound then your target can be distracted. The advancement of technology has made us able to minimize the sound which was produced by the older goggles.

The Reason behind less sound produced by Night Vision Devices of Generation III

The older Night Vision Devices produce noise and it was an issue. The evolution in the technology and the persuasive improvement in the brightness and sharpness of the images lead us towards the use of a photocathode with the addition of the chemical gallium arsenide. It minimized the sound and improved the lifetime of the devices. The current generation, which is the third generation, of night vision devices produce minimum sound or no sound due to the use of gallium arsenide with the photocathode. There is a ban on the use of night vision devices in Germany but you can use them if you are in the United States of America.

What is the sound heard in movies and video games when NV googles turn on?

In movies, the sound is added by the aid of cinematic tactics and audio editing for grabbing the attention of the viewers. Night vision goggles are used in Hollywood movies for attracting more viewers and building their interest. The cinematographers and editors of the movies add artificial sounds for letting people know that the night vision device or goggle is working. Same happens in video games. In reality, there is no kind of such sound or noise associated with the night vision goggles of the current generation.

Conclusion

Night vision devices of the older generations produce sound when they turn on. They produce the sound like a squeal or the sound produced by a high voltage transformer in operation. In the movies and video games, a sound is heard when a night vision device comes into action. In reality, the night vision devices of the current generation and the second generation do not produce an audible sound when turned on. The use of the night vision devices in the current time demands the minimum sound. The technologists work on that and manufactured the devices with the minimum sound. According to the military sources, the night vision devices of generation II & III do not produce any sound.      

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