632.8 US LPF-12.5 12.5 mm Dia. Mounted Ultra-Steep Longpass Filter; t=3mm 632.8nm

The 632.8 US LPF-12.5 is a Longpass Filter, a type of optical element designed to transmit light with wavelengths longer than a specified value while blocking shorter wavelengths. This particular model, sourced from Iridian Spectral Technologies, has a diameter of 12.5 mm and a thickness of 3 mm, making it suitable for a wide range of optical applications.

The filter's primary function is to cut on at 632.8 nm, meaning it begins to transmit light at this wavelength. Notably, it has a cut off of 0, indicating that it blocks all wavelengths of light below its cut-on point. This ultra-steep longpass characteristic makes it an ideal choice for applications requiring sharp wavelength discrimination.

The filter's coating, denoted as "irr 632 8-us-lpf" on both the front and back surfaces, contributes to its performance. This coating is specifically designed to enhance the filter's longpass properties, ensuring efficient transmission of longer wavelengths and effective blocking of shorter ones.

The filter's base shape is circular, and it features a thin lens shape, which can be beneficial in certain optical system designs. The catalog number for this item is 632.8 US LPF, and it is currently in stock, according to the vendor's website.

For more information or to make a purchase, please visit the following link: https://www.iridian.ca/product/632-8-us-lpf/