87-861 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1075nm

The 87-861 is a Bandpass Filter, specifically designed for applications requiring a narrow passband. This filter features a circular shape, with a diameter of 25 mm and a thickness of 3.5 mm, providing a compact and robust solution for various optical setups.

The filter is manufactured by Edmund Optics, a renowned vendor in the optical industry, ensuring high-quality standards and reliable performance. The catalog number for this item is 87-861, and it is currently in stock, as indicated by its weblink status.

The 87-861 has a cut-on wavelength of 1050 nm and a cut-off wavelength of 1100 nm, with a center wavelength (CWL) of 1075 nm. This specificity in wavelength allows for precise filtering of light, making it ideal for applications such as fluorescence microscopy, spectroscopy, and other scientific research where specific wavelength selection is crucial.

The filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent optical properties. The front and back of the filter are coated with EDM 87-848, a hard coating that enhances the filter's durability and resistance to environmental factors, ensuring longevity and stability in performance.

The filter's shape is defined as a Thin Lens, indicating its suitability for use in optical systems where minimal thickness and weight are desirable. This feature also minimizes optical aberrations, contributing to the overall quality of the system.