The 1180DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 1180nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is of the Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking light outside this range. The cut-on wavelength is 1174.5nm, and the cut-off wavelength is 1185.5nm, providing a narrow bandwidth for precise optical applications.
The 1180DIB12 is made from UVFS Mal-1965, a material known for its optical properties and durability. It features a Thin Lens shape, which is beneficial for applications requiring minimal optical path deviation. The filter has a thickness of 6.1mm, providing structural rigidity while maintaining a low profile.
The front and back surfaces of the filter are coated with KNI 1180DIB, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance by reducing reflection and increasing transmission at the desired wavelength.