87-253 50 mm Dia. Hard Coated Tri-Band Fluorescence Bandpass Filter; t=2 mm 457/530/628nm

The 87-253 is a Tri-Band Fluorescence Bandpass Filter, sourced from the renowned optical components vendor, Edmund Optics. This filter, with a diameter of 50 mm and a thickness of 2 mm, is designed for use in diverse optical systems, particularly where precise wavelength selection is required.

The filter's primary function is to allow transmission of light within specific wavelength ranges, while blocking other wavelengths. In this case, the 87-253 filter is designed to pass light at 457nm, 530nm, and 628nm, making it ideal for applications involving multi-band fluorescence.

The filter's physical data includes a cut-on wavelength of 446nm and a cut-off wavelength of 468nm at the primary wavelength of 457nm. This indicates a narrow bandwidth, ensuring high spectral purity and minimal stray light.

The filter is constructed from UVFS Mal-1965 material, a common choice for optical filters due to its excellent optical properties and durability. The front and back surfaces of the filter are coated with EDM 87-237, a hard coating that enhances the filter's resistance to wear and environmental factors, ensuring long-term performance and reliability.

The filter's shape is that of a thin lens, suggesting a low profile and minimal impact on the overall optical path within the system. This, combined with its generous 50mm diameter, makes the 87-253 filter a versatile and practical choice for many optical applications.

According to the vendor's website, the 87-253 filter is currently in stock, indicating its availability for immediate purchase and use. The filter's catalog number, 87-253, can be used to reference this specific product on the Edmund Optics website, where more information, including pricing and shipping details, can be found.