66-238 25 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 950nm

The 66-238 is a high-performance longpass filter, boasting a 25 mm diameter and a thickness of 3 mm, sourced from the renowned optical vendor, Edmund Optics. This filter is designed to transmit light with wavelengths greater than or equal to 950 nm, while effectively blocking shorter wavelengths, making it ideal for applications that require the separation of infrared light.

The filter is constructed from UVFS Mal-1965, a material known for its durability and optical clarity. It features a circular shape and a thin lens design, optimized for efficient light transmission and minimal distortion. The front and back surfaces of the filter are coated with EDM 66-230, a hard coating that enhances the filter's resistance to scratches and other forms of damage, ensuring longevity and reliability in various operational conditions.

According to the provided data, the filter's catalog number is 66-238, and it is currently in stock, as indicated by its valid weblink status. The vendor's website provides more detailed information and purchasing options for this product.