645FDL50 50 x 50 mm Longpass Dichroic Filter 645nm

The 645FDL50 is a Dichroic Filter, specifically designed for longpass applications, with a cut-on wavelength of 645nm. This filter, sourced from Knight Optical, is a high-quality, reliable option for optical systems that require precise wavelength discrimination.

The filter is rectangular in shape, with dimensions of 50 x 50 mm, and a thickness of 1.1mm. It is made from N-BK7 Schott, a widely used optical glass due to its excellent optical properties and high chemical durability. This material ensures the filter's robustness and longevity, making it suitable for various applications.

The 645FDL50 features a coating on both the front and back surfaces, specifically the KNI 645FDL-0 coating. This coating enhances the filter's performance, ensuring efficient wavelength separation. The filter's geometry is that of a thin lens, further optimizing its optical properties.

The physical data of the filter indicates a cut-on wavelength of 645nm and a cut-off wavelength of 0nm. This longpass filter allows all wavelengths greater than 645nm to pass through while blocking shorter wavelengths.

According to the vendor's information, the filter is currently in stock and available for immediate purchase. The item data also provides a weblink for direct access to the product page on Knight Optical's website, ensuring easy access to additional information or the purchasing process.