86-631 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=7.5 mm 589nm

The 86-631 is a Bandpass Interference Filter, designed and manufactured by Edmund Optics, a leading global supplier of optical components. This filter, with a catalog number 86-631, is specifically engineered for use in applications where precise wavelength selection is crucial. The filter features a circular geometry with a 50 mm diameter and a thickness of 7.5 mm, making it suitable for a wide range of optical systems.

The filter is designed to operate at a central wavelength (CWL) of 589 nm, with a full width at half maximum (FWHM) of 10 nm. This means it allows light within a narrow band around the 589 nm wavelength to pass through while blocking out other wavelengths. The cut-on wavelength is 584 nm, and the cut-off wavelength is 594 nm, further illustrating its narrowband transmission characteristics.

The 86-631 filter is coated with EDM 65-647 on both the front and back surfaces. This coating enhances its performance by reducing reflections and increasing transmission, thereby improving the overall signal-to-noise ratio in the system. The filter's shape is that of a Thin Lens, which suggests it may have some light-focusing properties, although this is not explicitly stated in the provided data.

According to the vendor's website, this item is currently in stock, indicating it is readily available for purchase and delivery. The product's webpage also provides more detailed specifications and application notes, which could be useful for those considering this filter for their optical systems.