84-674 25 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=3mm 1300nm

The 84-674 25 mm Dia. Traditional Coated OD 2.0 Longpass Filter is a specialized optical component designed for applications requiring long-pass filtering at 1300nm. This filter is sourced from Edmund Optics, a leading vendor in the optical industry, and is available for purchase through their official website.

This filter is a Longpass type, which means it allows light of longer wavelengths to pass through while blocking shorter wavelengths. The cut-on wavelength for this filter is 1300nm, ensuring that only light with wavelengths greater than this value will be transmitted. The cut-off wavelength is 0nm, indicating that no light with wavelengths shorter than this value will be allowed to pass.

The filter is circular in shape, with a diameter of 25 mm and a thickness of 3 mm. This makes it suitable for use in a wide range of optical systems where space is not a limiting factor. The material ID for this filter is UVFS Mal-1965, although further details about the material composition are not provided in the item data.

The coating on both the front and back of the filter is EDM 84-666. This coating is likely applied to enhance the filter's performance and durability. However, the specific properties and benefits of this coating are not detailed in the item data.

The filter's geometry is described as a Thin Lens, suggesting that it may have some lens-like properties. However, without further information, it is not possible to confirm this or provide more details about its lens characteristics.