What Are the Advantages of LWIR Lens for Cooled Camera？

LWIR lenses and LWIR zoom lenses are both LWIR optics designed to focus long-wave infrared (LWIR) radiation onto a detector. However, LWIR lenses and LWIR zoom lenses differ in their focal length capabilities.

Click here to get more.

LWIR lens: Offers a fixed focal length, providing a specific field of view. LWIR lens is suitable for applications where a constant perspective is required.

LWIR zoom lens: Provides a variable focal length, allowing the user to adjust the field of view and magnification. This versatility makes the LWIR zoom lens ideal for applications demanding flexibility in image capture.

Essentially, an LWIR lens is like a fixed-focus camera lens, while an LWIR zoom lens is comparable to a zoom lens on a regular camera.

If you are looking for more details, kindly visit IRLENS.

The primary difference between cooled LWIR lenses and uncooled LWIR lenses lies in their thermal noise management and operational performance. Cooled LWIR lenses incorporate cryogenic cooling mechanisms to reduce the sensor temperature, significantly diminishing thermal noise and enhancing sensitivity and image resolution. This makes cooled LWIR lenses ideal for high-precision applications like military targeting and satellite imaging, where detecting subtle temperature differences is crucial. In contrast, uncooled LWIR lenses operate at ambient temperatures and use sensor materials less sensitive to thermal noise. While uncooled LWIR lenses offer lower sensitivity and resolution than cooled LWIR lenses, uncooled LWIR lenses are more cost-effective, require less maintenance, and are more robust for commercial and industrial applications where extreme precision is less critical.

LWIR (Long-Wave Infrared) lenses need to be cooled to drastically reduce thermal noise, which can significantly interfere with the detection and imaging of infrared radiation. Infrared detectors, particularly those operating in the LWIR spectrum, are sensitive to heat emitted by both the environment and the detector itself. At room temperature, this heat generates significant infrared noise, obscuring the subtle differences in infrared radiation emitted by the target objects. Cooling these detectors to cryogenic temperatures minimizes this self-emission, enhancing their sensitivity and allowing them to produce clearer, more detailed thermal images with higher resolution and contrast. Cooled LWIR lenses are crucial for applications requiring precise thermal detection and imaging.

CNGEIR is your go-to custom optical lens manufacturer and custom optical components supplier in China. Elevate your tech with our world-class IR optics combined with advanced optical materials today!

The company is the world’s best LWIR Lens for Cooled Camera supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

Most lenses can only capture images of objects that the human eye can see, but there is also an exception that everyone is most familiar with infrared (IR) thermal lenses, which can detect infrared light, which is a kind of non-visible light radiant energy. People can feel the heat of infrared light, but they cannot see the infrared light. At temperatures exceeding absolute zero (-273.15°C), any object emits heat radiation. The warmer the object, the more heat it radiates, which allows humans and other warm-blooded animals to stand out from colder backgrounds in infrared lens images.The long-wave infrared (LWIR) lens is the most commonly used infrared lens, and it is gaining unprecedented wide applications. The following are the five advantages of the LWIR lens.Enhance visual information and accurately measure temperatureThermal imaging cameras work in three bands: mid-wave infrared (MWIR), long-wave infrared (LWIR), and very long-wave infrared (VLIR).The VLIR band has the most limited application range. It is mainly used for spectroscopy applications (a laboratory technique that uses light reflected from objects to identify matter) and high-power telescopes in astronomy.The MWIR band is best for detecting high-temperature objects-this is why most MWIR lenses must be cooled to approximately -196°C.In contrast, LWIR lenses are best suited to work in an environment close to room temperature and do not require cooling. Most LWIR lenses are based on microbolometers, which are sensitive electrical detectors that convert infrared radiation into temperature to produce black and white or color images.Therefore, the LWIR lens can realize the function of enhancing visual information and accurately measuring temperature.Provide a more complete imageSince LWIR lenses measure heat rather than light, they are increasingly used in applications where traditional visible-light imaging cannot display enough information.Protect the wild animalThe LWIR lens installed on the drone helps to change the protection of wildlife. Governments and NGOs around the world are using drones equipped with LWIR lenses to keep poachers away from endangered wildlife, including orangutans in Borneo, rhinos in South Africa, and elephants in Kenya.By emitting high-frequency sound waves, drones can drive wild animals out of areas where they might be shot. In a recent pilot project in a Kenyan reserve, drone patrols reduced elephant and rhino poaching incidents by 96%. Currently, the Kenyan government is planning to deploy drones with LWIR lenses in its 52 national parks and reserves.Can be used in the medical field
LWIR radiation measurement lenses have proven to be particularly useful in the medical field. The relationship between human body temperature changes and diseases is almost as old as medicine itself. Radiometric imaging can be used to diagnose and study diseases. Higher skin temperature can reflect some abnormalities or inflammations in the tissues, such as cancer, arthritis, and bone. Arthritis and fibromyalgia, etc. As LWIR radiation measurement lenses become smaller and cheaper, they are expected to become common tools for X-ray imaging and ultrasound imaging in hospitals and medical clinics.Has unlimited potentialAs the cost and size continue to shrink, LWIR lenses will show their talents in a wider variety of applications.In international cricket matches, LWIR lenses have been used to check controversial penalties made by on-site referees. If the ball has been in contact with the player’s racket, the LWIR lens can show the heat generated. At international airports, LWIR technology helps prevent the spread of deadly diseases by identifying whether passengers have a fever. The LWIR lens designed and produced by QUANHOM can detect extremely small temperature differences and supports resolutions up to x (SXGA). If you want to learn more about the knowledge of the LWIR lenses after reading the above content, you can contact us for a comprehensive solution.