How Does Thermal Imaging Scope Work?

You may feel a bit surprised about the thermal imaging scope, but do not repeat that feeling again because this technology is used every equipment in the modern age. Cameras are one of the most popular tools which getting thermal imaging technology.

It first was developed in the military purpose, but it has increased to other industries such as law enforcers, security professionals, surveillance cameras, tripods, and even the best thermal imaging scope for  hunting games (with the latest scope). But have you wonder this question “how does thermal imaging scope work?”

A quick look of thermal imaging scope

Thermal imaging helps us can see targeted objects clearer than using the naked eyes. It does not matter the object is made from human-made or natural points from the infrared energy.

Usually, thermal imaging takes the changes in the energy from objects to your standing point to allow seeing them easily during the darkness and other obstacles. In essence, thermal imaging scope expands your line of sight.

Thermal imaging cameras, on the other hand, can keep the discharge temperatures by different points in a place and provide a color to a fixed temperature. The red, yellow and the orange color are often offered to make the temperature warmer when the green and the blue light make us feel cool.

How it works?

When you want to know how thermal imaging scope works, this is the first step you want to get a deeper point about this tool.

It is not difficult to recognize this concept because thermal imaging scope comes from energy level in a light wave. Then, it moves to wavelength straightly. Please bear in mind that high-energy levels often are shorter wavelengths.

Moreover, the violet color has the most power via the visible light when the red color does not have strong energy.

Thermal cameras perceive temperature by realizing and catching several levels of infrared light. The light is invisible to our naked eyes, but it can appear in the heating condition when the intensity is high in a certain amount.

All objects produce some type of infrared radiation and it is one of the best solutions which heat is moved.

Let’s try an experiment. If you keep some hot coals on your hand, these are producing much-infrared radiation. The heat then will transfer to your hand. However, only a half of the sun’s energy is moved as visible light and the rest part is a combination of infrared light and ultraviolet.

When an object is hotter, infrared radiation generates more energy in a thermal camera. And all of the thermal cameras can find out this radiation and move it to an image which our naked eyes could recognize. It is similar to a night vision camera probably seizes invisible infrared light and transform it into a normal image (our eyes might see).

There are a lot of small measuring units which reach out infrared radiation in a thermal camera. It is called micro-bolometers and every pixel has one. The micro-bolometer gets the temperature and then shows that pixel to an ideal color. This is the reason most of the thermal cameras have a lower resolution than the latest TVs and other devices. An excellent resolution of a thermal camera is about 640×480.

Use thermal imaging scope for what?

You can use this scope in three different situations:

  • Law imposition and security: thermal imaging identifies doubtful activity in many distances of the darkness. It can withstand other conditions such as dust, smoke, fog, and so on. Furthermore, it supports officers could approach in normal stealth mode and get better decisions more rapidly. Cameras can be controlled in different points like weapon-mounted or tripod-mounted.
  • Security devices and surveillance systems: thermal imaging cameras go with CCTV cameras to offer practical threat detection and combine aimlessly with bigger networks.
  • Prophetic maintenance: thermal imaging divulges hot spots in several electrical and industrial installations.

To understand thermal imaging clearly, it is crucial to know something about light. The amount of power in a light wave is similar to the wavelength. The visible light spectrum is also the infrared spectrum.

Distinguish between thermal imaging scope and night vision

Generally, thermal imaging looks like a night vision because it can help you see in the dark condition. Nonetheless, it has a different purpose inside. If you want to focus on the dark only, there will be other options you may take into account using thermal imaging.

A night vision scope(Read more from, on the other hand, will take shorter infrared wavelengths compared to thermal systems. In other words, night vision cameras will not catch longer infrared wavelengths as thermal cameras undertake.

Final Words

Thermal imagers do not contain surroundings. They do not have enough light energy with the heating system. Everything you can see will come from heat signature. This is the reason you have a much greater opportunity of catching something at night through a thermal imager. This is similar to a visible light camera or a night vision unit as well.

There are a lot of objects you can find out and look for like people and things are different from their own as they produce their heat. Thermal imagers, on the other hand, can reach it pretty well as they occur picture from the differences in heating objects.