84-740 12.5 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=2 mm 625nm

The 84-740 is a high-performance longpass filter, boasting a 12.5 mm diameter and a thickness of 2 mm. This filter, offered by the reputable optical vendor Edmund Optics, is designed to transmit light with wavelengths above 625 nm, making it ideal for applications that require the separation of infrared light from visible light.

The filter's longpass characteristic is achieved through a precise cut-on wavelength of 625 nm, ensuring efficient blocking of shorter wavelengths. The cut-off wavelength, on the other hand, is 0 nm, indicating that no light below the cut-on wavelength is transmitted.

The 84-740 filter features a circular shape and is made from UVFS Mal-1965, a material known for its optical quality and durability. The filter is coated on both the front and back surfaces with EDM 84-740, a coating that enhances the filter's performance and longevity.

This filter is designed with a thin lens shape, making it suitable for a wide range of optical systems. The catalog number for this item is 84-740, and it is currently in stock, according to the vendor's website. For more information or to make a purchase, users can visit the provided weblink.