Hangzhou Vision Datum Technology Co.,Ltd

🔥 Exploring Long-Wave Infrared (LWIR) with VisionDatum 🔥

Today, we dive into the Long-Wave Infrared (LWIR) spectrum, the key range that makes thermal imaging possible. Whether you’re building your own machine vision system for projects or commercial use, or simply curious about invisible imaging technologies, we hope you’ll enjoy this! ✨

🌈 Infrared Spectrum
As a quick recap: IR (infrared) light is part of the electromagnetic (EM) spectrum with longer wavelengths than visible light.

👁️‍🗨️ Invisible Imaging: Thermal Cameras & LWIR
Modern SWIR cameras (Short-Wave Infrared) can capture details inside and between materials that are invisible to the human eye or standard machine vision cameras.

On the other hand, LWIR refers to wavelengths between 6,500nm–12,000nm. Since these wavelengths are much longer, LWIR is better understood as heat energy rather than invisible light — and this is where thermal imaging comes in. 🌡️

📸 Thermal Imaging
Thermal cameras detect infrared energy and convert it into a digital image. They can sense extremely small temperature differences — as little as 0.01°C — and display them in grayscale or colorful palettes.

🔍 Thermal Sensors
Unlike standard machine vision cameras, thermal sensors operate differently:

Pixel resolutions range from 256×192 up to 1920×1080 (or higher).

LWIR wavelengths are much longer, so each sensor element must be physically larger.

This results in fewer pixels compared to visible-light sensors of the same size.

🔥 Heat Signatures Everywhere
Everything around us emits heat. Even two objects placed side by side can have distinct heat signatures. This means thermal cameras can “see” in total darkness or even through smoke. 🌌

⚙️ Applications of Thermal Imaging with VisionDatum
Thermal cameras are now widely used across industries, including:
✅ Food & beverage packaging seal inspection 🥫
✅ Temperature monitoring in industrial automation 🏭
✅ Overheating detection in engines or motors 🚗
✅ Fire detection in waste management facilities 🔥
✅ Autonomous braking for self-driving vehicles 🤖
✅ Elevated body temperature screening in healthcare 🏥

With VisionDatum LWIR thermal imaging solutions, you can unlock the invisible world of heat and bring new possibilities to your projects! 🚀

#ThermalImaging #LWIR #VisionDatum #MachineVision #Infrared

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4 months ago | [YT] | 3

Hangzhou Vision Datum Technology Co.,Ltd

What is NETD in Thermal Cameras? 🤔

Understanding NETD in Thermal Cameras
When looking into the technical details of a thermal camera, you may come across the term NETD, which stands for Noise Equivalent Temperature Difference. It is a key indicator of how well a thermal imaging detector can distinguish small differences in thermal radiation in the image.
NETD is usually expressed in millikelvin (mK). It’s sometimes referred to as thermal contrast. The lower the NETD, the better the detector can resolve fine temperature differences. 🔥❄️

Typical NETD values:

Uncooled microbolometer cameras: ~45 mK

Photon-based cryogenically cooled scientific cameras: ~18 mK

At VisionDatum, our LWIR cameras can achieve NETD as low as 35 mK 🎯, and our MWIR cameras reach as low as 15 mK 🎯, delivering high sensitivity thermal imaging across a wide range of applications.

How is NETD measured? 📐
To measure NETD, the camera must be aimed at a temperature-controlled blackbody. The blackbody needs to stabilize before starting the measurement.
Then, NETD is measured at a specific temperature. This is not a single-frame measurement, but rather a temporal noise measurement over time.

Figure 1 shows both:

A noisy thermal image captured when the camera observes a uniform blackbody during measurement. 📸

The histogram of all pixel values gathered from multiple frames, showing the temporal distribution of noise at that temperature. 📊

The NETD value is the standard deviation (STDEV) of this histogram, converted into mK.

How does NETD impact image quality and accuracy? 🧐
Figure 2 shows the same scene captured by two cameras — one with NETD of 60 mK, and the other 80 mK.
In regions with low temperature differences, the image from the 80 mK camera exhibits significantly more noise. ⚠️

Even a 20 mK difference in NETD can lead to clearly visible image degradation and reduced temperature accuracy in subtle details.

What factors affect NETD? ⚙️
Several factors can influence NETD performance:

Calibration range: Thermal cameras may use different NETD values under different temperature ranges.

Object temperature: NETD should always be specified at a known object temperature (e.g. NETD @ 30 °C: 60 mK).

Ambient conditions: High ambient temperatures can increase system noise, depending on the camera’s internal temperature stability.

F-number of lens: The f-stop (aperture) of the lens determines how much IR radiation reaches the detector. Lower f/# = better NETD.

NUC (Non-Uniformity Correction) interval: As internal temperature drifts, image noise can increase before NUC is triggered.

📩 Interested in high-sensitivity thermal imaging solutions?
Contact VisionDatum to learn more about our LWIR and MWIR cameras, or discuss your project needs. 🚀

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7 months ago | [YT] | 5

Hangzhou Vision Datum Technology Co.,Ltd

🎉🎉 15 years of creating brilliance together, thank you for having you! 🎉🎉
Time flies, in the blink of an eye we have walked through fifteen years hand in hand.🥰💕
#visiondatum #Excellentemployee #Warmmoments

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1 year ago | [YT] | 2

Hangzhou Vision Datum Technology Co.,Ltd

Sept Procurement Feast is coming soon! A large number of discounts are available at Vision Datum🥰📸

🔗 Click the link to start your smart vision journey! 🔗
visiondatum.en.alibaba.com/...
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#ledlight #industriallens

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1 year ago (edited) | [YT] | 1

Hangzhou Vision Datum Technology Co.,Ltd

Explore the eye of industry and lead the future of smart manufacturing!🚀🔍


🌟 Industrial smart cameras are reshaping the new landscape of industrial automation with their powerful visual processing capabilities!


📸 High-definition image quality and precise recognition, industrial smart cameras rely on excellent imaging technology and advanced algorithms to help industrial automation achieve higher precision and efficiency.


💡 Intelligent analysis, decision support, from defect detection to object recognition, industrial smart cameras provide all-round data support for Industry 4.0, leading a new era of industrial intelligence!
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#IndustrialSmartCamera #SmartManufacturing #visiondatum #IndustrialAutomation #FutureTechnology

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1 year ago | [YT] | 2

Hangzhou Vision Datum Technology Co.,Ltd

Let's discuss together~😀💬“UV camera”

With the continuous advancement of technology, the future application prospects of UV industrial cameras are unlimited. From precision manufacturing to quality control to environmental monitoring, UV industrial cameras are becoming an indispensable tool for all walks of life. ✨

Especially in the fields of semiconductors, photovoltaics and medical care, the application of UV industrial cameras is driving the industry forward and achieving more efficient and accurate detection and measurement.📸🚀

#UVIndustrialCamera #FutureApplication #IndustrySolution
#machinevision #visiondatum

1 year ago | [YT] | 2

Hangzhou Vision Datum Technology Co.,Ltd

Unlock the UV world, Vision Datum UV camera——make the invisible visible. ❗🚀


In the pursuit of ultimate quality, we provide you with unprecedented visual solutions.📸🔍


shop.visiondatum.com/en-pt/collections/uv-camera
#UVVision #PrecisionDetection #UVCamera #visiondatum

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1 year ago | [YT] | 3

Hangzhou Vision Datum Technology Co.,Ltd

LEVEL UP DEFENSE+ COMMERCIAL APPLICATIONS——VISION DATUM LWIR CAMERA📸🚀
💡Advantage:
High Temperature wamning
Defocus Compensation
Motorized Focus Adiusting
Continuous Zoom & Auto Focus
Fire Point Alarm
Measurement Temperature up to 1500°C
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1 year ago | [YT] | 2

Hangzhou Vision Datum Technology Co.,Ltd

🌟 High performance long wave infrared industrial camera, opening a new chapter in industrial vision! 🌟
🔥 Real time warning, making high temperatures nowhere to hide!
🌈 Accurate monitoring, efficient intelligence
🔗** Experience it now and embark on a journey of intelligent temperature monitoring** 🔗
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#LongWaveInfraredCamera #NightVision #ThermalImages
#NonContactTemperatureMeasurement #ThermalRadiation
#InfraredDetection #TemperatureDistribution #InfraredSpectrum

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1 year ago | [YT] | 2

Hangzhou Vision Datum Technology Co.,Ltd

Smart barcode readers lead the new trend of industry! Let's discuss it together!😀🔍



In this fast-developing era, smart barcode readers are changing the face of the manufacturing industry at an unprecedented speed. Do you have more ideas about its upgrades and updates? Come and speak freely!💬💡



#SmartBarcodeReader #IndustrialNewTrend #IndustrialBarcodeReader #innovationdevelopment
#visiondatum #industry4 #futuredevelopment

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1 year ago | [YT] | 2