581FDL50 50 x 50 mm Longpass Dichroic Filter 581nm

The 581FDL50 is a Dichroic Filter, specifically designed for longpass applications, with a cut-on wavelength of 581nm. This filter, sourced from Knight Optical, is a high-quality, rectangular component, measuring 50 x 50 mm, and has a thickness of 1.1mm.

The filter is made from N-BK7 Schott, a well-regarded optical glass known for its excellent transparency and low auto-fluorescence. This material ensures the filter's durability and reliability in various optical applications.

The 581FDL50 features a coating on both the front and back surfaces, denoted as 'kni 581fdl-0'. This coating is crucial for the filter's performance, enabling it to effectively transmit light at wavelengths above 581nm while blocking lower wavelengths.

The filter's geometry is that of a thin lens, which can be beneficial in certain optical systems where minimal thickness is required. The physical data of the filter indicates a cut-on wavelength of 581nm and a cut-off wavelength of 0nm, further emphasizing its longpass characteristics.

This filter is currently in stock and available for immediate purchase from Knight Optical's website. The provided weblink leads directly to the product page for easy access and ordering.