900FH90-50 50mm Dia. Standard Long Wave Pass Edge Filter, Cut-on 900nm

The 900FH90-50 is a Longpass Filter from Andover Corporation, designed with a circular shape and a diameter of 50mm. This filter is made of fused sil mal-1965, a material known for its durability and optical clarity. It has a thickness of 3mm, making it suitable for various optical applications.

The filter's primary function is to pass long waves, specifically those with a wavelength of 900nm and above. The cut-on wavelength is 900nm, indicating that it begins to transmit light at this point on the spectrum. Conversely, it blocks all wavelengths below this point, making it an effective tool for separating specific light frequencies.

The coating on both the front and back of the filter is 'and 900fh90'. This coating enhances the filter's performance and longevity, providing reliable long-wave pass functionality. The filter's shape is thin lens, which is beneficial for applications requiring minimal interference with light paths.

The 900FH90-50 is currently in stock and available for purchase through Andover Corporation's website. The provided weblink leads directly to the product page, ensuring easy access for users interested in this filter.