The 850DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 850nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is a Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking other wavelengths. In this case, the cut-on wavelength is 845nm, and the cut-off wavelength is 855nm, ensuring a tight bandpass around the central wavelength of 850nm.
The 850DIB12 is made from UVFS Mal- 1965, a material specifically chosen for its optical properties. The filter has a thickness of 6.1mm, and its circular shape allows for easy integration into various optical systems.
The front and back of the filter are coated with KNI 850DIB, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance and durability, ensuring reliable operation in demanding environments.
The filter's geometry is that of a Thin Lens, which can be beneficial in certain optical system configurations. This filter is currently in stock and available for immediate purchase through the vendor's website.