87-826 25 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1150nm

The 87-826 is a Bandpass Filter, sourced from the reputable optical vendor, Edmund Optics. This particular filter has a circular base shape, with a diameter of 25 mm and a thickness of 3.5 mm, making it suitable for a wide range of optical applications. The filter features a Hard Coated OD 4.0, enhancing its durability and resistance to wear and tear.

The filter's primary function is to allow light within a specific wavelength range to pass through while blocking out other wavelengths. In this case, the filter is designed for a center wavelength (CWL) of 1150 nm, with a cut-on wavelength of 1137.5 nm and a cut-off wavelength of 1162.5 nm. This precise wavelength range is crucial for applications that require narrow-band light, such as fluorescence microscopy or laser spectroscopy.

The 87-826 filter is coated with EDM 87-814 on both the front and back surfaces, further enhancing its performance and longevity. The coating helps to reduce surface reflections, improving the overall transmission of light through the filter. This filter's thin lens shape allows for easy integration into existing optical systems.

According to the vendor's website, this item is currently in stock, ensuring quick delivery times for those who need it. The item's catalog number is 87-826, and it can be found on the Edmund Optics website for further information or purchase.