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Home > Products > Optics > Optical Filters > Heat Control Filters

Heat Control Filters
Heat Control 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 Product Detail Specifications Catalog PDF
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
 Quantity Model Description Price
  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 
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