080FN46-25 25mm Dia. Fused Silica Standard UV Neutral Density Filter, OD=0.8

The 080FN46-25 is a 25mm diameter Neutral Density Filter, designed for use in the ultraviolet (UV) range of the spectrum. This filter is manufactured by Andover Corporation, a leading vendor in the field of optical components. The catalog number for this specific filter is 080FN46-25.

The filter is made of fused silica, a high-purity synthetic fused quartz, which is known for its excellent optical properties and durability. The material ID for this filter is fused sil mal-1965, indicating its specific composition and manufacturing process. The filter has a base shape of a circle, which is a common shape for filters due to its versatility and ease of use in various optical systems.

The 080FN46-25 filter has a wavelength of 588 nanometers, which is in the visible light spectrum. This wavelength corresponds to the color yellow, although the filter itself appears neutral, meaning it does not significantly alter the color of the light passing through it.

The filter has a thickness of 1.5 millimeters, which is relatively thin, making it suitable for use in compact optical systems. The geometry of the filter is defined by its diameter and thickness, which are critical parameters for determining its performance in an optical system.

The filter is coated on both the front and back surfaces with a coating designated as 'and 080fn46'. This coating is likely designed to enhance the filter's performance, such as by reducing reflections or increasing transmission. The specifics of the coating are not provided in the item data, so it is not possible to elaborate further on this aspect.

The shape of the filter is described as a 'Thin Lens', which suggests that it may have been designed to minimize optical aberrations, thereby improving the performance of the optical system in which it is used.