36-641 25 mm Dia. Hard Coated Ultra Narrow Bandpass Filter; t=2mm 780nm

The 36-641 is a 25 mm diameter, ultra narrow bandpass filter, specifically designed for a center wavelength of 780nm. Manufactured by Edmund Optics, this filter is made from borofloat33, a high-quality glass material known for its excellent optical properties and durability. The filter features a thickness of 2mm, providing sufficient structural integrity while maintaining minimal optical path differences.

The filter's primary function is to allow light transmission within a very narrow band around the 780nm wavelength, effectively blocking out other wavelengths. The cut-on wavelength is 779.4nm, and the cut-off wavelength is 780.6nm, demonstrating the filter's high selectivity. The central wavelength (CWL) is also 780nm, indicating the peak transmission wavelength.

The 36-641 filter is hard coated on both the front and back surfaces with the EDM 36-641 coating. This coating enhances the filter's performance and durability, providing excellent resistance to environmental factors and potential damage. The filter's shape is thin lens, making it suitable for a wide range of optical applications.

For more information, including pricing and availability, please refer to the vendor's website: https://www.edmundoptics.com/p/780nm-cwl-25mm-dia-od-6-ultra-narrow-filter/37036/