86-451 50 mm Dia. Traditional Coated SWIR Longpass Filter; t=1.2mm 850nm

The 86-451 is a Longpass Filter, measuring 50 mm in diameter, manufactured by Edmund Optics. This filter features a traditional coating on both the front and back surfaces, with the coating type specified as edm 86-449. The filter's primary function is to transmit light with wavelengths above 850 nm, while blocking shorter wavelengths, making it suitable for applications in the Shortwave Infrared (SWIR) region of the spectrum.

The filter is constructed from borofloat33, a borosilicate glass known for its excellent thermal stability and resistance to thermal shock. The glass has a thickness of 1.2 mm, which contributes to its overall durability. The circular shape of the filter, combined with its thin lens geometry, ensures ease of integration into various optical systems.

The physical data of the filter indicates a cut-on wavelength of 850 nm, meaning it begins to transmit light at this wavelength. The cut-off wavelength is 0 nm, indicating that it blocks all wavelengths shorter than 850 nm. This specificity in wavelength transmission makes the 86-451 an ideal component for applications that require the isolation of specific wavelength ranges.

According to the vendor's website, the 86-451 is currently in stock, ensuring quick delivery for those who need it. The product's web link is provided for easy reference and further details.