The 86-448 is a 50.0 x 50.0 mm Traditional Coated Shortwave Infrared (SWIR) Longpass Filter, with a thickness of 1.2mm, manufactured by Edmund Optics. This filter is designed for use in the infrared spectrum, specifically for wavelengths above 700nm.
The filter is made from borofloat33, a borosilicate glass known for its excellent thermal stability and resistance to thermal shock. This makes it an ideal choice for applications that require consistent performance across a wide temperature range.
The 86-448 features a longpass filter design, which allows for the transmission of longer wavelengths while blocking shorter ones. The cut-on wavelength is 700nm, meaning it begins to transmit light at this point in the spectrum. The cut-off wavelength is 0nm, indicating that it will transmit all wavelengths longer than 700nm.
Both the front and back surfaces of the filter are coated with edm 86-445, a proprietary coating developed by Edmund Optics. This coating enhances the filter's performance and durability, providing improved resistance to environmental factors and ensuring reliable, consistent operation.
The filter's rectangular shape and thin lens design make it compatible with a wide range of optical systems and setups. It is currently in stock and available for immediate purchase through the Edmund Optics website.