39-309 12.5 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 808nm

The 39-309 is a Bandpass Filter with a diameter of 12.5 mm, sourced from the reputable optical components vendor, Edmund Optics. This filter is specifically designed for use with a central wavelength of 808nm, making it ideal for applications that require precise wavelength selection within this range.

The filter is constructed with a hard coating on both the front and back surfaces, denoted as 'edm 39-309'. This coating enhances the filter's durability and resistance to wear and tear, ensuring long-lasting performance. The filter's thickness is 3.5 mm, providing sufficient structural integrity for most applications.

The 39-309 features a Cut-On wavelength of 803nm and a Cut-Off wavelength of 813nm, with a Center Wavelength (CWL) of 808nm. This specifications indicate that the filter allows transmission of wavelengths between 803nm and 813nm, with the highest transmission at 808nm. This makes it an excellent choice for applications that require narrowband filtering.

The filter is designed in a Thin Lens shape, which is beneficial for applications that require compact and lightweight optical components. The filter's geometry is circular, further enhancing its compatibility with various optical systems.

For more information, including pricing and availability, please refer to the provided weblink: https://www.edmundoptics.com/p/808nm-cwl-125mm-dia-hard-coated-od-4-10nm-bandpass-filter/40066/. The link also provides access to detailed specifications and technical drawings, helping you to determine if this filter is suitable for your specific needs.