39-329 12.5 mm Dia. Hard Coated OD 4.0 5nm Bandpass Filter; t=3.5 mm 355nm

The 39-329 is a Bandpass Filter with a diameter of 12.5 mm, sourced from the reputable optical components vendor, Edmund Optics. This filter is designed to transmit light within a specific range of wavelengths, making it an essential component in various optical systems.

The filter's primary function is to allow light in the 355 nm range to pass through while blocking other wavelengths. The cut-on wavelength is 352.5 nm, and the cut-off wavelength is 357.5 nm, ensuring a tight bandpass. The central wavelength (CWL) is 355 nm, indicating the peak transmission wavelength.

The 39-329 filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent transmission properties in the specified wavelength range. The filter has a thickness of 3.5 mm, providing sufficient structural integrity for most applications.

The filter's front and back surfaces are coated with EDM 39-329, a hard coating that enhances the filter's durability and resistance to environmental factors. This coating also aids in reducing surface reflections, improving the overall efficiency of the optical system.

The filter's shape is that of a thin lens, suggesting its potential use in focusing or collimating light. This feature, combined with its specific wavelength transmission properties, makes the 39-329 an versatile and valuable addition to any optical system.

According to the vendor's website, the 39-329 is currently in stock, ensuring quick delivery for those interested in incorporating this component into their optical systems.