Cold Mirrors

Cold Mirrors

Cold Mirrors

Cold Mirrors represent Andover Corporation's solution for separating visible and infrared light, effectively reflecting visible wavelengths while transmitting infrared energy.
These specialized mirrors feature first-surface coatings deposited on low-expansion borosilicate glass substrates, optimized for 45° angle of incidence in randomly polarized light.
This design makes them particularly effective for heat management in high-intensity illumination systems, providing excellent performance and durability in demanding applications.
  • Efficient separation of visible and IR wavelengths
  • High-durability first-surface coatings
  • Optimized for 45° angle of incidence
  • Thermal stability from low-expansion substrate
  • Compatible with high-temperature applications
  • Excellent coating durability
  • High reflection efficiency for visible light
  • Superior IR transmission
  • High-intensity projection systems
  • Professional photocopier equipment
  • Surgical lighting systems
  • Dental illumination
  • Film and photographic equipment
  • Scientific instrumentation
  • Industrial illumination systems
  • Optical test equipment
cold mirror graph
  • Thickness: 3.0mm ±0.5mm
  • Size Tolerance: +0.0mm/-0.5mm
  • Minimum Clear Aperture: 95% of outside dimension
  • Substrate Material: Borosilicate glass
  • Flatness: 5-10 waves per 25mm
  • Parallelism: 3 arc minutes or better
  • Surface Quality: 80/50 per MIL-O-13830
  • Humidity/Abrasion Resistance: Per MIL-C-675A
  • Maximum Operating Temperature: +200°C
  • Configuration: Unmounted
  • High-intensity projection systems
  • Professional photocopier equipment
  • Surgical lighting systems
  • Dental illumination
  • Film and photographic equipment
  • Scientific instrumentation
  • Industrial illumination systems
  • Optical test equipment

Showing all 3 results

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

    645FK84-25

    Cold Mirror, 25mm diameter x 3mm thick

    $59.00
    $51.00
    $45.00
    In Stock

    645FK84-50

    Cold Mirror, 50mm diameter x 3mm thick

    $85.00
    $73.00
    $65.00
    In Stock

    645FK84-50S

    Cold Mirror, 50mm x 50mm x 3mm thick

    $99.00
    $85.00
    $75.00
    In Stock