500FDS50 50 x 50 mm Shortpass Dichroic Filter 500nm

The 500FDS50 is a 50 x 50 mm Shortpass Dichroic Filter, specifically designed to transmit light below 500nm while reflecting light above this wavelength. This filter, sourced from Knight Optical, is a crucial component for various optical systems that require precise wavelength discrimination.

The filter is made from N-BK7 Schott, a widely used optical glass known for its excellent optical properties and durability. It has a thickness of 1.1mm, providing robustness and stability in its application. The rectangular shape, with a width of 50mm and a length of 50mm, ensures a large active area for efficient light transmission.

The 500FDS50 features a cut-on wavelength of 710nm and a cut-off wavelength of 500nm. This means it begins to transmit light at 500nm and blocks all wavelengths above 710nm. This characteristic makes it ideal for applications where short wavelengths need to be isolated or passed, such as in fluorescence microscopy, spectroscopy, and laser systems.

The filter is coated with KNI 500FDS-0 on both the front and back surfaces, enhancing its performance and durability. This coating ensures high transmission efficiency and excellent wavelength selectivity. The filter's thin lens shape further contributes to its performance by minimizing optical aberrations and ensuring uniform light transmission.