640SP 18 mm Dia. Surface Coating; Shortpass Filter Surface Coating

The 640SP is a high-quality Shortpass Filter, sourced from the reputable vendor, Omega Optical. This filter boasts an 18 mm diameter and a thickness of 1 mm, making it a versatile choice for various optical applications. The filter is designed with a UVFS MAL-1965 material ID, which ensures excellent performance and durability.

The 640SP filter's primary function is to allow wavelengths less than or equal to 588 nm to pass through while blocking those greater than 640 nm. This specific wavelength range makes it suitable for applications that require the separation of certain light spectra. The filter's coating, both on the front and back, is identified as OME 640SP, further enhancing its performance and longevity.

The filter's shape is classified as a Thin Lens, which is beneficial in applications where minimal thickness and weight are crucial. The catalog number for this item is 3975, and it is currently in stock, as indicated by its weblink status. For more information or to make a purchase, users can visit the provided weblink: https://www.omegafilters.com/product/3975.