Infrared Suppressing Filters

Infrared Suppressing Filters

Infrared Suppressing Filters

IR Suppressing Filters combine dielectric thin-film reflection with IR-absorbing glass to deliver superior broadband infrared blocking — well beyond the range of standard hot mirrors. This dual-action approach achieves deep, reliable suppression from 750nm through 2000nm while maintaining high visible transmission, making these filters ideal for heat-sensitive optical systems and precision illumination applications.

IR Suppressing Filters are optimized for applications where standard hot mirrors fall short, combining two independent blocking mechanisms to achieve suppression depths neither could reach alone. Due to their absorption characteristics, these filters are optimized for low-to-moderate power applications with maximum operating temperatures not exceeding 100°C.

Together they deliver ≤0.1% average transmission from 750nm through 2000nm while maintaining ≥65% average visible transmission across the 425–650nm passband.

Each filter is engineered for low-to-moderate power environments, making them ideally suited for projection systems, surgical and dental lighting, photocopiers, and precision scientific instrumentation.

Infrared Suppressing Filters body image
  • Extended blocking range beyond standard hot mirrors
  • Dual-action blocking through reflection and absorption
  • Optimized for heat-sensitive applications
  • Enhanced IR protection capabilities
  • Long operational lifetime
  • High optical quality
  • Precision wavelength separation
  • Projection systems
  • Photocopiers
  • Surgical and dental lighting
  • Film and photographic apparatus
  • Illumination systems
  • Scientific instruments
  • Thickness: 6.0mm ±0.5mm
  • Size Tolerance: +0.0mm/-0.5mm
  • Min. Clear Aperture: 95% of outside dimension
  • Substrate Material: Borosilicate glass and heat-absorbing glass
  • Flatness: 5–10 waves per 25mm
  • Parallelism: 3 arc minutes or better
  • Surface Quality: 80/50 per MIL-O-13830
  • Humidity and Abrasion: Per MIL-C-675A
  • Max. Operating Temperature: +100°C
  • Mechanical: Unmounted
 

Showing all 3 results

    PART NO.
    DESCRIPTION
    1 - 5 pcs.
    6 - 10 pcs.
    > 10 pcs.
    Stock Status

    800FB72-25

    IR Suppression Filter, 25mm diameter x 6mm thick

    $173.00
    $149.00
    $131.00
    In Stock

    800FB72-50

    IR Suppression Filter, 50mm diameter x 6mm thick

    $297.00
    $255.00
    $226.00
    In Stock

    800FB72-50S

    IR Suppression Filter, 50mm x 50mm x 6mm thick

    $297.00
    $255.00
    $226.00
    In Stock