Feb 22nd 2023

Ultimate guide to night vision goggles.

Now, we'll go over the most significant advancement in military science: night vision technology. In an impenetrable night, technology enabled us to see and thus act productively. We will attempt to provide the most comprehensive, final, and comprehensive guide to using the most ergonomic and convenient device for identifying objects in the dark - night vision goggles.

How do night vision goggles function? 

Before delving into the various types of night vision equipment and night-vision goggles as one of the most convenient and practical devices, let us first understand the theoretical aspect. What exactly is night vision, and how does it work?

Scotopic vision refers to the ability to see objects in the dark. It is the interaction of physiological and neurological processes in the human body that allows us to distinguish objects in low light. This is visible in the retina and the pupil's reaction, which can be seen from the side.

At the same time, there is a change in pupil diameter, which allows our body to regulate the amount of incoming light flux and adapt vision to different conditions. You can feel it even if you turn on bright lights in a dark room. If you are experiencing some discomfort as a result of this, you can be certain that your eyes and brain are rushing to switch to another mode of perception of visible information.

Cats readily demonstrate visual demonstration. The pupil dilates when there is a lack of light, allowing more light to pass through. This is unnecessary in good lighting, and the pupil narrows. True, our eyes are not as sensitive as cats', so at dusk, we cannot compete even with such domestic and fluffy predators.

And it's not just about the students' abilities. We have rod-shaped and cone-shaped cells that process light signals. In fact, these cells are shaped like cones and rods and are responsible for registering received signals — cones - designed for fine detail, color, and bright light perception. They lose these abilities when it gets dark.

However, rods are only good at peripheral vision perception and are much more sensitive to light photons. Without them, switching off the light would result in a total blackout. However, color perception is their kryptonite, so night landscapes usually appear monochrome to us.

Because of these facts, we are transitioning from evolutionary leaders to outsiders when it comes to night vision. That is why we find it difficult to navigate in the dark. And, in order to adapt even slightly to such conditions, our eyes must become accustomed to darkness, which will take some time. What size is it? You should feel better in five to eight minutes. And an additional forty minutes to maximize the adaptation effect. Medical research, such as "Webvision: The Organization of the Retina and Visual System," backs this up.