64-622 12.5 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=1.5mm 725nm

The 64-622 is a Longpass Filter, a type of optical filter that transmits wavelengths longer than a specified value, while blocking shorter wavelengths. This particular model has a diameter of 12.5 mm and a thickness of 1.5 mm, making it suitable for a wide range of optical applications.

The filter is manufactured by Edmund Optics, a leading supplier of optical components, and is identified by the catalog number 64-622. It is available for purchase directly from the Edmund Optics website, where it is currently listed as in stock.

The 64-622 filter is designed to cut on at 725 nm, meaning it begins to transmit light at this wavelength. It does not have a specified cut off wavelength, indicating that it continues to transmit all longer wavelengths.

The filter features a traditional coating on both the front and back surfaces. This coating enhances the filter's performance by reducing reflection and increasing transmission. The coating is identified as 'edm 64-622' on both surfaces.

The filter's shape is described as a Thin Lens, suggesting that it has been designed to minimize optical aberrations and improve image quality. This makes it an ideal choice for applications that require high-precision optical filtering.