Vision control of night vision devices - The difference between auto gain and manual gain


Sales Enginner: Grace Gao

Email : grace@bri-elec.com

WhatsApp: 0086-199 2997 5286


In the dark night, night vision devices are our window to observe and explore the world. However, under different light conditions, we may need to adjust the brightness of the night vision device to obtain the best visual experience. In night vision technology, auto gain and manual gain are two commonly used functions. They provide automatic and manual ways to control the brightness of night vision devices respectively. This article will introduce the difference between automatic gain and manual gain to help you choose the method that suits your observation needs.



Automatic gain(Auto gain)

Automatic gain is an intelligent function in night vision devices, and automatic gain adjustment is also automatic brightness adjustment. It is related to the auto gated image intensifier tube. Auto-gating controls the amount of incident light to ensure that the image intensifier tube can be used normally in different environments. Automatic gain allows the tube to sense the amount of incoming light, and it can automatically adjust the brightness level of the night vision device according to changes in ambient light, and thus the brightness of the image.


When the light is dark, the automatic gain increases the brightness of the night vision device to provide a clearer view; When the light is brighter, the automatic gain reduces the brightness to avoid visual discomfort caused by overly bright images. This automatic adjustment function makes using night vision devices more convenient without manual intervention.


Manual gain:

Manual gain is a feature that allows the user to manually adjust the brightness of the night vision device. The manual gain adjustment function adjusts the brightness of the anode surface output by manually controlling the working voltage of the image intensifier tube. The difference in imaging brightness we see when we manually adjust the gain has nothing to do with the amount of light entering.


By manually adjusting the gain control knob or button, the user can customize the brightness level of the night vision device based on specific viewing needs. Manual gain provides greater flexibility, allowing users to precisely control the brightness of the night vision device according to the actual scene to obtain the best observation results.


Differences and applicable scenarios:


Auto Gain is suitable for situations where light conditions change frequently or unpredictably. Whether in night exploration, security patrols or military operations, automatic gain can automatically adjust the brightness of the night vision device according to changes in ambient light, ensuring continuous clear vision and eliminating the trouble of frequent manual adjustments.


Manual gain is more suitable for scenes that require precise control of the brightness of the night vision device. For example, for people who need to make specific observations and recordings, such as photographers, hunters, or special mission personnel, manual gain provides greater autonomy and operating space, allowing them to adjust the brightness of the night vision device according to specific needs in order to obtain more detailed observations.


Whether it is automatic gain or manual gain, they all play an important role in night vision devices. Automatic gain allows you to get a clear view under different light conditions through intelligent brightness adjustment, providing a convenient and comfortable observation experience. Manual gain allows you to adjust the brightness according to your needs and creativity, achieving a more personalized viewing experience.


Conclusion:

In the world of night vision devices, automatic gain and manual gain are two different control methods, each with unique advantages and applicable scenarios. Automatic gain allows you to maintain a clear view without having to worry about brightness adjustment, and is suitable for scenes with frequent light changes. Manual gain provides greater autonomy and precision, and is suitable for situations where specific observation needs or creativity are required. Choosing the appropriate gain method allows you to master the field of vision in the world of night vision devices and obtain the best observation experience. Whether you are an explorer, photographer or security personnel, the automatic gain and manual gain functions of the night vision device will become your right assistant in exploring the world in the dark night.



Sales Enginner: Grace Gao

Email : grace@bri-elec.com

WhatsApp: 0086-199 2997 5286









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