Application Note
Application Note: Hot & Cold Mirrors
A hot mirror is in essence a thin film coating applied to substrates in an effort to reflect infra-red radiation either as a means to harness the reflected wavelengths for an application or to remove them from an application.
Hot mirrors are often misunderstood due to their name and understandably so. Judging by the name it would be reason-able to believe that these kinds of coatings reflect heat by reflecting the infrared spectrum. Along that line of thought it would seem that objects illuminated by visible light passing through a hot mirror would be cold, however that is not en-tirely the case.
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