590FDL50 50 x 50 mm Longpass Dichroic Filter 590nm

The 590FDL50 is a high-quality Dichroic Filter, measuring 50 x 50 mm, manufactured by Knight Optical. This filter is designed to transmit light at wavelengths above 590nm, making it ideal for applications that require longpass filtration.

The filter is made from N-BK7 Schott, a widely used optical glass known for its excellent transparency and low autofluorescence. The filter's geometry includes a thickness of 1.1mm, providing robustness and stability.

The 590FDL50 features a cut-on wavelength of 590nm, meaning it begins to transmit light at this wavelength and continues to do so for longer wavelengths. The cut-off wavelength is 0nm, indicating that it allows all wavelengths shorter than 590nm to pass through.

The filter's coating, KNI 590FDL-0, is applied to both the front and back surfaces. This coating enhances the filter's performance, ensuring efficient light transmission and minimal reflection.

The filter's shape is classified as a Thin Lens, which is a lens with a thickness that is small compared to its other dimensions. This shape contributes to the filter's overall functionality and performance.

The 590FDL50 is currently in stock and available for immediate purchase through Knight Optical's website. The filter's catalog number is 590FDL50, and it can be found at the following link: https://www.knightoptical.com/stock/default/dichroic-filter-longpass-590nm-50x50mm-square.html