390FIB50 50 mm Dia. Standard Interference Bandpass Filter 390nm

Knight Optical's 390FIB50 is a 50 mm diameter Standard Interference Bandpass Filter, specifically designed to transmit light in the 390nm range while blocking light at other wavelengths. This filter is a crucial component for applications that require narrowband light transmission, such as fluorescence microscopy, spectroscopy, and other optical systems.

The filter is made from UVFS Mal-1965, a high-quality optical material known for its excellent transmission characteristics in the ultraviolet range. It has a thickness of 6.1mm, providing sufficient mechanical strength and rigidity for most applications. The filter's circular shape and thin lens design ensure easy integration into various optical systems.

The 390FIB50 features a cut-on wavelength of 385nm and a cut-off wavelength of 395nm, resulting in a narrow passband centered at 390nm. This precise wavelength selection is achieved through the use of advanced interference coating technology, which is applied to both the front and back surfaces of the filter. The coating, identified as KNI 390DIB, is specifically designed to enhance the filter's performance in the 390nm range.

According to the vendor, Knight Optical, this filter is currently in stock and available for immediate shipping. The filter's catalog number is 390FIB50, and it can be found on Knight Optical's website along with additional technical specifications and purchasing information.