87-251 50 mm Dia. Hard Coated Dual-Band Fluorescence Bandpass Filter; t=2 mm 577/690nm

The 87-251 is a high-quality Dual-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 applications that require precise wavelength selection.

The filter is specifically designed for dual-band transmission at 577nm and 690nm, making it ideal for fluorescence microscopy and other applications where specific wavelengths need to be isolated. The cut-on wavelength is 565nm, and the cut-off wavelength is 589nm, ensuring a tight bandpass for these wavelengths.

The 87-251 filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent transmission characteristics and durability. The filter is coated on both sides with EDM 87-235, a hard coating that enhances the filter's resistance to scratches and other forms of damage, ensuring a long service life.

The filter's shape is that of a thin lens, making it suitable for use in a wide range of optical systems. It is currently in stock and available for immediate shipping, as indicated by its weblink status. For more information, users can visit the provided weblink, which leads to the product's page on the Edmund Optics website.