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A thermal imaging device creates images by translating infrared radiation into visible light. Unlike a traditional photograph, a thermal image reveals different temperature ranges. By highlighting contrasting levels of heat, you can see during day and night time hours as well as during difficult conditions like bad weather, fire, or within thick vegetation. Thermal technology often comes in the form of an infrared camera, monocular, or scope.
How much does a thermal imaging device cost?
Thermal imaging devices are expensive because they use complex image sensors for infrared imaging, but are designed for intuitive use. On the low end, you can expect to pay a few hundred bucks, and on the high end, tens of thousands of dollars. However, you can find inexpensive alternatives like a FLIR attachment for iOS or Android smartphones.
The difference between an inexpensive and expensive IR camera is features and image quality. The price usually increases when the infrared camera has things like high-resolution imagery, a high refresh rate, high pixel count, LCD monitor, WiFi connectivity, ergonomic design, and rechargeable and extended battery.
What can a thermal imaging device see?
Looking through a thermal imaging device, you'll see contrasting levels of heat of the objects in the camera's field of view. The temperature differences are identified by colors and shades. A standard thermal image, or thermograph, uses shades of yellow, red, green, and blue, but many people prefer using a grayscale.
In the image, you'll see the heat signatures of whatever is in view. High temperatures will appear as hotspots and cooler temperatures will appear dark. You'll use the hotspots and other reference points like the shape of the object and other objects in view to determine what you're looking at. However, the level of detail will vary depending on the quality of the camera. Infrared cameras with higher resolution or megapixels will show greater detail.
Unlike night vision, a thermal imaging device needs absolutely no light to operate. That's because a thermal image sensor picks up on infrared wavelengths, or heat, which is naked to the human eye.
Also, what you see depends on what you're looking for. Thermal imaging cameras help a variety of professionals conduct temperature screenings in real-time. This might mean conducting an energy audit of a building, finding a faulty HVAC system, automotive repair, firefighting, or law enforcement looking for a missing hiker during a search and rescue mission.
Can thermal imaging cameras see through clothes?
Yes, but maybe not in the way you'd think. A visible light camera will show you objects as they appear in visible light while a thermal camera shows you their heat signatures. In other words, if an object doesn't emit much heat it might not appear in the image. So in this sense, the thermal camera will detect the heat of your chest, but not the thin cotton shirt covering it.
Buy a Thermal Imaging Device on OpticsPlanet
On OpticsPlanet, we carry a range of high performance thermal imaging cameras, scopes, and monoculars by top brands like ATN, Pulsar, Armasight, and more. Plus, learn more about thermography, thermal sensors, and camera systems by reading through our library of How-To Guides. Gear up with OpticsPlanet!
Other categories you might be interested in are 9mm Luger Ammunition, Thermal Imaging Accessories, Thermal Imaging Cameras, Thermal Imaging Monoculars, Thermal Imaging Scopes.
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