MidOpt infrared filters for clearer IR imaging

How machine vision filters reveal hidden material contrast

MidOpt infrared filters for machine vision and IR imaging

In machine vision and industrial imaging, not every defect, feature or material difference is identifiable under standard lighting. MidOpt infrared filters can help vision systems by passing wavelength bands that provide the required feature contrast while blocking bands that tend to hide those features.

Different materials absorb and reflect infrared wavelengths in different ways. Plastics, inks, adhesives and coatings that appear almost identical under visible illumination can become clearly distinguishable by filtering with IR filters and IR imaging.

Parts shown using visible imaging before infrared filtering Before – Visible imaging: Parts appear similar with limited contrast, making reliable inspection and sorting difficult.
Parts shown using infrared imaging after filtering After – IR imaging: Stronger material contrast enables more accurate identification, classification and defect detection.

By isolating selected wavelengths and blocking unwanted light, machine vision filters can improve image clarity and provide inspection software with more consistent information. This can help manufacturers reduce false rejects, increase repeatability and identify features that standard visible imaging may miss.

IR imaging applications

MidOpt infrared filters can support a wide range of machine vision applications, including:

  • Material sorting and identification
  • Moisture and contamination detection
  • Semiconductor and electronics inspection
  • Print and packaging verification
  • Agricultural and food inspection
  • Near-infrared imaging systems

For example, IR imaging can help distinguish visually similar plastics, reveal moisture in food products, verify inks and adhesives in packaging or identify features beneath materials that appear opaque under visible light.

MidOpt machine vision filters

MidOpt offers infrared longpass, shortpass and bandpass filters engineered for industrial imaging.

Longpass filters block visible light while transmitting longer infrared wavelengths. Shortpass filters remove unwanted longer wavelengths, while bandpass filters isolate a narrow spectral range associated with a specific material or feature.

With durable coatings, high transmission and precise wavelength control, MidOpt machine vision filters are designed for consistent performance in demanding environments.

When paired with suitable illumination, optics and a compatible camera sensor, MidOpt infrared filters can reveal details that visible imaging misses.

Discover how MidOpt infrared filters can improve IR imaging performance in your machine vision application.

Need help choosing the right infrared filter?

Speak with Adept Turnkey about the right MidOpt filter for your machine vision and IR imaging application.

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