The 36-264 is a Neutral Density Filter with a 50 mm diameter, designed for use in the Near-Infrared (NIR) spectrum, specifically between 700-1100nm. This filter is manufactured by Edmund Optics, a leading provider of optical components. The catalog number for this item is 36-264, and it can be found on the Edmund Optics website, where it is currently in stock.
This filter is made from UVFS MAL-1965, a material specifically chosen for its performance in the NIR spectrum. It has a base shape of a circle and a thickness of 5mm, making it suitable for a wide range of optical applications. The filter features a thin lens shape, which helps to minimize optical aberrations and distortions.
The 36-264 filter is coated on both the front and back with EDM 36-262, a coating that enhances its performance in the NIR spectrum. This coating helps to ensure that the filter has a consistent and reliable optical density of 3.5 across the entire NIR spectrum.