280FIB12 12.5 mm Dia. UV Interference Bandpass Filter 214-320nm

The 280FIB12 is a UV Interference Bandpass Filter, designed and manufactured by Knight Optical. This filter is specifically engineered to allow transmission of light within the 214-320nm wavelength range, while effectively blocking other wavelengths.

The filter boasts a circular shape with a diameter of 12.5mm and a thickness of 6.1mm, making it compatible with a wide range of optical systems. The base material of the filter is UVFS Mal-1965, a UV-grade fused silica known for its high transmittance and excellent thermal stability.

The 280FIB12 filter features a cut-on wavelength of 275nm and a cut-off wavelength of 285nm, ensuring a narrow and precise bandpass. The central wavelength (CWL) of the filter is 280nm, indicating its primary functionality in the ultraviolet spectrum.

The filter is coated with KNI 280FIB on both the front and back surfaces, enhancing its performance and durability. This coating is designed to reduce surface reflections and improve the overall transmission of the filter.

The 280FIB12 filter is available in a thin lens shape, offering a lightweight and compact solution for various optical applications. According to the vendor, the filter is currently in stock and the associated web link provided is valid, offering users easy access to additional technical specifications and purchasing information.