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Hot Mirror vs. Cold Mirror

 

Hot and cold mirrors “heat control filters” are types of dichroic filters used to remove unwanted energy from a light emitting source.

 

A hot mirror is a dichroic filter that reflects 90% of near infrared (NIR) and infrared (IR) light while transmitting up to 80% of the visible light. Hot mirrors transmit the shorter wavelengths and reflect the infrared energy. Hot mirrors can be specified for an angle of incidence ranging from aero to 45 degrees. . They are made by applying a multi-layer dielectric coating to the glass substrate such as Borofloat® borosilicate glass. Learn more

 

A cold mirror is a dichroic filter that reflects up to 90% of the visible light spectrum while allowing transmission of infrared wavelengths IR and near IR of up to 80%. Cold mirrors reflect the shorter wavelengths and transmit the heat (infrared). A cold mirror can be specified for an angle of incidence ranging from zero to 45 degrees. They are made by applying a multi-layer dielectric coating to the glass substrate such as Borofloat® borosilicate glass. Learn more

 

Abrisa Technologies provides these heat control filters in thicknesses of 1.1mm, 1.7rmm and 3.3mm in sizes of up to 24” in diameter.

 

Abrisa Technologies is a recognized global supplier of high quality, fabricated glass components, optical thin film coatings, and custom glass solutions for a wide variety of industries. From our US based Abrisa Industrial Glass fabrication facility in Santa Paula, CA and our ZC&R Coatings for Optics division in Torrance, CA we serve diverse industries such as microelectronics and displays, semiconductor, military, automotive, aerospace, medical, biomedical and scientific R&D. We provide custom specialty flat glass and coating products for applications such as: flat panel display, touch and gesture recognition; visible to IR imaging and surveillance; entertainment, indoor and outdoor lighting; advanced instrumentation; and photonics.


Information

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