84-002 100 x 300 mm Kodak Wratten 2 Neutral Density Color Filter; OD 0.7 400-700nm

The 84-002 is a 100 x 300 mm Kodak Wratten 2 Neutral Density Color Filter, designed for use in optical systems where light intensity needs to be reduced without altering the color composition. This filter is sourced from Edmund Optics, a leading provider of optical components.

The filter features a uniform density of 0.7 optical density (OD), which corresponds to a transmission of approximately 17.8%. This makes it suitable for applications where a significant reduction in light intensity is required. The filter's spectral response is designed for the visible spectrum, specifically between 400nm and 700nm.

The filter is made from color glass, a material known for its excellent optical properties and durability. It has a rectangular shape, which is a common form factor for filters used in beam-shaping applications. The filter's thickness is 0.1mm, making it a thin lens type, which minimizes optical aberrations and simplifies integration into optical systems.

The filter's front and back surfaces are coated with EDM 54-456, a coating that enhances the filter's performance and durability. This coating provides protection against environmental factors, ensuring the filter maintains its optical properties over time.