030FN46-25 25mm Dia. Fused Silica Standard UV Neutral Density Filter, OD=0.3

The 030FN46-25 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 filter is part of their extensive catalog of metallic UV-VIS-NIR filters, and it is currently in stock, as indicated by its weblink status.

This particular filter is identified by the catalog number 030FN46-25. It is made of fused silica, a material known for its excellent optical properties and durability. The filter has a base shape of a circle, which is a common design for filters due to its uniformity and ease of integration into optical systems.

The filter's geometry includes a diameter of 25mm and a thickness of 1.5mm. This thickness is considered thin in the context of optical components, making it suitable for applications where space is a constraint.

The 030FN46-25 filter features a coating on both the front and back surfaces. This coating, identified as 'and 030fn46', is likely a proprietary coating developed by Andover Corporation for this specific filter. The purpose of the coating could be to enhance the filter's performance in the UV range, provide scratch resistance, or offer other benefits.

The filter's shape is described as a 'Thin Lens', suggesting that it may have been designed to minimize optical aberrations and distortions. This makes it an ideal choice for applications that require high optical precision.