The Place of Ultraviolet in the Electromagnetic Spectrum

In the realm of industrial imaging and machine vision, the ability to see beyond the visible spectrum can unlock a world of possibilities. While conventional cameras are limited to capturing light within the visible range, low-light UV industrial cameras offer a unique perspective by detecting ultraviolet radiation, even in dimly lit environments.

In the realm of print inspection, low-light UV cameras are invaluable for examining banknotes, passports, and pharmaceutical packaging. Many inks, coatings, and security features used in these applications contain UV-reactive materials, making it possible to inspect print quality, detect alterations, and verify authenticity using UV imaging.

Furthermore, low-light UV cameras play a vital role in scientific and medical applications. They can reveal characteristics, defects, or biological markers that are invisible under visible illumination, making them indispensable tools in fields such as microscopy, spectroscopy, forensics, and medical diagnostics.

By harnessing the power of low-light UV imaging, manufacturers and researchers can gain valuable insights, improve quality control processes, enable efficient sorting and recycling, and unlock new scientific and analytical possibilities. As technology continues to evolve, low-light UV industrial cameras will undoubtedly play an increasingly vital role in unveiling the unseen and pushing the boundaries of what is possible in the world of machine vision.

Applications of UV Imaging

Semiconductor and Printed Circuit Board Inspection
UV light's short wavelengths make it highly sensitive to microscopic surface defects, contaminants, and pattern irregularities on semiconductor wafers, photomasks, and PCBs during manufacturing processes.

Plastic and Material Sorting
Different plastics and materials exhibit distinct UV transmittance and fluorescence properties. UV cameras can distinguish and sort transparent materials like plastics, glass, etc. that appear similar under visible light.

Print Inspection
Many inks, coatings and security features on items like banknotes, passports, and pharmaceutical packaging contain UV-reactive materials. UV cameras inspect print quality, authenticity and detect alterations.

Corona Discharge Detection
Degradation in high-voltage power lines leads to corona discharge which emits UV radiation. UV cameras visualize this UV emission for early detection of failing components.

Scientific and Medical Applications

UV imaging finds uses in microscopy, spectroscopy, forensics, and medical diagnostics by revealing characteristics, defects or biological markers invisible under visible illumination.

Equipping Vision Systems with UV Industrial Cameras

Vision Datum Low-light UV Industrial Cameras are equipped with GSENSE series highperformance large-pixel or full-frame image sensors. Given the inherent thermal noise of the sensors, an efficient cooling module is specially designed to make the operating temperature of the camera sensor up to 40 degrees lower than the ambient temperature. Given the common phenomenon of low-temperature fog formation on the sensor surface, the anti-fog structure is designed to ensure that the sensor surface will not fog formation at low temperatures. The unique technology of Low-light UV Industrial Cameras greatly reduces the image noise and ensures the acquisition of high-quality images. The video and image data transmission of this series of cameras is via the USB 3.0/Camera Link Fast Transfer protocol interface for quick preview.

The temperature of the Low-light UV Industrial Camera sensor can be controlled by software to ensure the highest possible quantum efficiency of photoelectric conversion with little video or image noise (the quantum efficiency of the GSENSE series high-performance image sensor is also reduced at particularly low temperatures, so temperature control is quite important).The cameras support free operation or trigger operation mode, which supports the capture of single or multiple pictures at a time. Integrated with highly stable industrial-grade IO modules, it can synchronize with multiple external devices or work simultaneously with multiple cameras.

Product Features

· Scientific grade professional cameras based on GSENSE series full frame or large pixel sensitive chips;

· High-speed USB3.0/Camera Link interface optional, transmission speed up to 5Gbits/s;

· IR-CUT or double AR film protective glass (optional);

· Support up to 1 hour accurate exposure control technology; 

· Built-in ISP module up to 16bit; 

· Ultra-Fine color processing engine for perfect color reproduction function;

· Built-in 2D denoising function and sharpening function; 

Performance Features

· Two-stage professional design of high-performance TE cooling structure, smart structure, fast cooling speed; 

· Temperature can be controlled, up to 40 degrees temperature drop; 

· The sensor operating temperature can be adjusted to the desired temperature within 5 minutes;

· Exquisite anti-fog structure, to ensure that the sensor surface will not fog under ultra-low temperature; 

· Support video and image capture in software/hardware trigger mode; 

· Windows/Linux/macOS/Android Multiple Platform SDK

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