49-026 12.5 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=1.5mm 500nm

The 49-026 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 49-026. It is available for purchase through the Edmund Optics website, where it is currently listed as in stock.

The 49-026 features a cut-on wavelength of 500 nm, meaning it begins to transmit light at this wavelength. The cut-off wavelength, which is the point at which the filter stops transmitting light, is 0 nm. This makes the filter ideal for use in applications where longer wavelengths need to be isolated or emphasized.

The filter is coated on both the front and back surfaces with the EDM 49-026 coating. This coating enhances the filter's performance and durability, ensuring reliable operation in a variety of conditions.

The filter's geometry is defined by its thin lens shape, which contributes to its versatility and ease of integration into optical systems. The filter's material ID, UVFS MAL-1965, provides additional information about its composition and properties.