Broadband Infrared Filters, or Broad Bandpass IR Filters of North Optics, are oriented for transmitting a specific and broad section of the IR spectrum centered around the designed center wavelength while blocking the remaining lights. Compared with narrowband infrared filters, which are also available in North Optics, the transmission bandwidths of broadband infrared filters are broader.

The substrate materials of North Optics's Broadband Infrared (IR) Filters are selected from a diverse range including silicon, sapphire, IR grade fused silica (such as Corning7979/SK-1310), germanium, and more, allowing for customized options to suit specific projects, enhancing compatibilities with various environments and applications. With selectable transmission bandwidths covering the entire IR wavelength spectrum from 0.9μm to 12μm, our broadband IR filters offer versatile solutions for diverse infrared applications in IR Thermal Imaging and thermal Sensing, IR Thermography, IR light Emitters and Detectors, and beyond. Engineered with meticulous caution, our broadband IR filters deliver unparalleled performance across the infrared spectrum. These filters ensure high transmission within their designated bandwidths, enabling reliable and accurate manipulation of infrared signals, and meeting the demands of advanced technological applications. 

Transmission of Broadband IR Filters (8-12 Micro):