49-069 25 mm Dia. NIR Metallic Based Neutral Density Filter; OD 0.6 700-1100nm

The 49-069 is a Neutral Density Filter with a 25 mm diameter, sourced from the reputable optical components vendor, Edmund Optics. This filter is specifically designed for use in the Near-Infrared (NIR) spectrum, with a wavelength of 588 nm, making it ideal for applications that require precise control over NIR light.

The filter boasts a Metallic Based Neutral Density coating on both the front and back surfaces, denoted as 'edm 49-067'. This coating is responsible for the filter's primary function: reducing the intensity of incident light without altering its color composition. The Optical Density (OD) of this filter is 0.6, which corresponds to a transmission of approximately 32% for the specified wavelength range of 700-1100 nm.

In terms of geometry, the filter has a thickness of 3 mm and follows a Thin Lens shape. This shape is often preferred in optical systems due to its reduced weight and minimized optical aberrations. The filter's circular form factor, with a diameter of 25 mm, adds to its versatility, making it compatible with a wide range of optical systems and components.

According to the provided item data, the filter is currently in stock and available for purchase through the vendor's website. The catalog number for this item is 49-069, and the web link provided leads directly to the product page for easy access and ordering.