405 LPF-12.5 12.5 mm Dia. Mounted Longpass Filter; t=3mm 405nm

The 405 LPF-12.5 is a Longpass Filter, a type of optical element that selectively transmits wavelengths above a specified value while blocking those below. This particular model, sourced from Iridian Spectral Technologies, has a catalog number of 405 LPF and is available for purchase on their official website. The link provided is valid and indicates that the product is currently in stock.

The filter features a circular shape with a diameter of 12.5 mm and a thickness of 3 mm, making it suitable for a wide range of optical applications. The base shape is identified as a Thin Lens, suggesting that it may have lens-like properties. The material used in this filter is UVFS Mal-1965, although further details about this material are not provided in the item data.

The 405 LPF-12.5 is designed to cut on at 405 nm, meaning it begins to transmit light at this wavelength. The cut off value is 0, indicating that it allows all wavelengths above 405 nm to pass through. This makes it ideal for applications that require the blocking of shorter wavelengths.

The filter's coating is identical on both the front and back surfaces, with the iri 405-lpf coating applied to enhance its optical properties. This coating is specifically designed for this filter, further optimizing its performance.