Spectral & Wavelength Imaging - Machine Vision
Machine Vision Techniques

Spectral & Wavelength Based Imaging

Inspection Beyond the Visible Spectrum

Not all defects are visible in the RGB spectrum.

Spectral techniques exploit wavelength-dependent material behaviour to reveal information beyond surface contrast.

SWIR Imaging

Imaging beyond the visible spectrum (typically 900–1700 nm) to reveal moisture, internal structure and material differences invisible to standard cameras. Essential for food inspection, moisture detection, silicon wafer inspection, contaminant detection and recycling systems.

SWIR Imaging - food and material inspection

Typical Applications

  • • Food inspection
  • • Moisture detection
  • • Silicon wafer inspection
  • • Contaminant detection
  • • Recycling systems

Strategic Value

SWIR enables inspection where visible light fails, particularly in food, recycling and semiconductor sectors.

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Hyperspectral & Multispectral Imaging

Material identification through spectral signatures by capturing dozens or hundreds of narrow wavelength bands for chemical differentiation. Perfect for polymer identification in recycling, pharmaceutical inspection, agricultural grading and optical sorting systems.

Hyperspectral Imaging - material sorting and identification

Typical Applications

  • • Polymer identification in recycling
  • • Pharmaceutical inspection
  • • Agricultural grading
  • • Optical sorting systems

Why It Matters

Spectral imaging detects material composition differences rather than visual appearance — a key capability in waste, recycling and advanced manufacturing.

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UV Imaging

Fluorescence and surface contamination detection using ultraviolet wavelengths to exploit fluorescence and short-wavelength scattering. Ideal for surface cleanliness, adhesive verification, coating uniformity checks and trace contamination detection where standard imaging fails.

UV Imaging - ESD and contamination inspection

Typical Applications

  • • Surface cleanliness inspection
  • • Adhesive verification
  • • Coating uniformity checks
  • • Forensic and security applications
  • • ESD discharge inspection

Strategic Value

UV imaging is particularly valuable where trace contamination must be detected.

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Technology Partners

Core Technology Partners

We work closely with specialist manufacturers at the leading edge of industrial photonics and machine vision.

BlueVision

Prism-based multispectral & SWIR cameras for high-performance spectral imaging and multi-channel inspection.

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Optomotive

FPGA-based smart camera platforms for real-time, deterministic industrial vision processing and edge AI.

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OSELA

Precision laser line projectors and structured illumination modules for 3D machine vision and triangulation.

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Zaber

Motorised linear stages and motion controllers for precision scanning and encoder-triggered acquisition.

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Mecademic

Ultra-compact 6-axis robots delivering micron-level repeatability for vision-guided automation and inspection.

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Precibeo

Piezo-driven nano-positioning and precision alignment systems for optical metrology and semiconductor inspection.

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Resonon

Pushbroom hyperspectral cameras covering UV, VNIR, NIR and SWIR for material classification and food inspection.

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onsemi

Leading supplier of SWIR image sensors and NIR-enhanced silicon detectors for advanced machine vision imaging.

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photonicSENS

Single-lens 2D+3D light field cameras delivering simultaneous colour and depth data for robotic vision.

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BlueVision

Prism-based multispectral & SWIR cameras for high-performance spectral imaging and multi-channel inspection.

Learn more
Optomotive

FPGA-based smart camera platforms for real-time, deterministic industrial vision processing and edge AI.

Learn more
OSELA

Precision laser line projectors and structured illumination modules for 3D machine vision and triangulation.

Learn more
Zaber

Motorised linear stages and motion controllers for precision scanning and encoder-triggered acquisition.

Learn more
Mecademic

Ultra-compact 6-axis robots delivering micron-level repeatability for vision-guided automation and inspection.

Learn more
Precibeo

Piezo-driven nano-positioning and precision alignment systems for optical metrology and semiconductor inspection.

Learn more
Resonon

Pushbroom hyperspectral cameras covering UV, VNIR, NIR and SWIR for material classification and food inspection.

Learn more
onsemi

Leading supplier of SWIR image sensors and NIR-enhanced silicon detectors for advanced machine vision imaging.

Learn more
photonicSENS

Single-lens 2D+3D light field cameras delivering simultaneous colour and depth data for robotic vision.

Learn more

Let's Discuss Your Application

Whether you're specifying components for a new machine, evaluating technologies for a feasibility study, or need support on an existing system, we're here to help.

sales@laser2000.co.ukHuntingdon, Cambridgeshire, UK