87-246 25 mm Dia. Hard Coated Tri-Band Fluorescence Bandpass Filter; t=2 mm 464/542/639nm

The 87-246 is a Tri-Band Fluorescence Bandpass Filter, sourced from the reputable optical components vendor, Edmund Optics. This filter, with a 25 mm diameter and a thickness of 2 mm, is designed for use in a variety of applications that require precise wavelength selection.

The filter's primary function is to transmit light in three specific wavelength bands: 464nm, 542nm, and 639nm. This is achieved through the use of a hard coating on both the front and back surfaces, which is identified as 'edm 87-238'. This coating enhances the filter's durability and performance, making it suitable for use in demanding environments.

The filter's physical data includes a cut-on wavelength of 452.5nm, a cut-off wavelength of 475.5nm, and a central wavelength (CWL) of 464nm. These specifications ensure that the filter effectively transmits light in the desired wavelength bands while blocking unwanted wavelengths.

The filter's geometry, with a 25 mm diameter and a 2 mm thickness, is designed to provide a balance between light transmission and mechanical stability. This makes it suitable for use in a variety of optical systems, including microscopy, spectroscopy, and imaging applications.

The filter is available for purchase through the Edmund Optics website, and at the time of data collection, it was listed as 'in stock', indicating immediate availability. The product's webpage also provides additional information and resources, including technical specifications, application notes, and purchasing options.