Infrared Glass

Kopp's IR transmitting/Visible absorbing glasses are tailored to have precise cut-on wavelengths to produce the highest IR transmission while minimizing visible light interaction. Our ability to tailor the cut-on wavelength is demonstrated in sensor applications where exposure to corrosive chemicals, abrasion, and thermal shock is prevalent.

Conversely, our IR absorbing/Visible transmitting (heat absorbing) glasses are designed to maximize transmission in the visible region, while eliminating IR radiation that may be detrimental to application. These filters are often used in security and military applications to reduce the signature (red and infrared wavelengths) of light sources, preventing detection by typical night vision goggles.  They’re useful for medical and dental applications when unwanted heat can impact patient and staff comfort.