The 12-099 is a Bandpass Filter with a 50 mm diameter and a hard-coated OD 4.0. This filter is designed to transmit light within a specific range of wavelengths, in this case, 350nm, while blocking other wavelengths. The cut-on wavelength is 325nm, and the cut-off wavelength is 375nm, providing a narrow band of transmission.
This filter is sourced from Edmund Optics, a reputable vendor known for its high-quality optical components. The item is currently in stock, as indicated by its weblink status. The catalog number for this filter is 12-099, and it can be found on the Edmund Optics website for further information and purchasing.
The filter is made from UVFS Mal-1965 material, and it has a thickness of 3.5mm. The coating on both the front and back of the filter is EDM 12-090, which is a hard coating that provides additional durability and protection. The shape of the filter is a thin lens, making it suitable for a wide range of optical applications.