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Dichroic Heat Control Filters

Bandpass Filters

  • Hot mirrors reflect near-IR heat and transmit visible light at 0°
  • Cold mirrors reflect visible light and transmit near-IR heat at 45°
  • Available in 25.4 mm diameter and 50.8 mm square sizes.

 

  • Product Description

    Our hot mirrors are heat-reflecting mirrors/filters designed to transmit visible wavelengths while reflecting near-infrared heat generating wavelengths. Our cold mirrors are heat-transmitting mirrors/filters designed to reflect visible wavelengths while transmitting near-infrared wavelengths. These filters can be used to remove heat from an optical system.

    Coatings
     Type  Wavelength  Reflectivity &
    Transmission
     Angle of Incidence
     Hot Mirror  200–390 nm
    420–690 nm
    725–1550 nm
     Tavg£1.0%
    Tavg³85%
    Ravg³90 %
     0° ±15°
     Cold Mirror  400–700 nm
    780–1250 nm
    850–2500 nm
     Ravg³95 %
    Tavg³85%
    Tavg³80%
     45° ±5°

     

    Ordering Information
     Model  Description
     10HMR-0  Heat Control Filter, 25.4 Dia, 0° Hot Mirror
     20HMS-0  Heat Control Filter, 50.8 x 50.8mm, 0° Hot Mirror
     10CMR-45  Heat Control Filter, 25.4 Dia, 45° Cold Mirror
     20CMS-45  Heat Control Filter, 50.8 x 50.8mm, 45° Cold Mirror

     

  • Product Detail

    Hot mirrors are heat-reflecting mirrors/filters designed to transmit visible wavelengths while reflecting near-infrared, heat-generating wavelengths. Cold mirrors are heat-transmitting mirrors/filters designed to reflect visible wavelengths while transmitting near-infrared wavelengths. They can be used to remove heat from an optical system. Hot mirrors are offered for use at 0° angle of incidence, while cold mirrors are available for 45° angle of incidence. They are both available in 25.4 mm diameter and 50.8 mm square sizes.

  • Specifications
Material  Borofloat® borosilicate float glass
 Surface Flatness  6–8l per 25.4 mm at 546.1 nm over the clear aperture
 Clear Aperture  ³central 90% of dimensions
 Surface Quality  80-50 scratch-dig
 Dimensions  ±0.4 mm
 Thickness  3.3 ±0.2 mm
 S2 Coating  None
 Temperature  500 °C maximum
 Cleaning  Non-abrasive method, acetone or isopropyl alcohol
 

 

 

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Founded in 1969, Newport Corporation is a pioneering single-source solutions provider of laser and photonics components to the leaders in scientific research, life and health sciences, microelectronics, industrial manufacturing, and homeland security markets.
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