87-856 12.5 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1475nm

The 87-856 is a Bandpass Filter with a diameter of 12.5 mm, sourced from the reputable optical components vendor, Edmund Optics. This filter is specifically designed for use with a central wavelength of 1475nm, making it suitable for applications that require precise wavelength selection within this range.

The filter is hard coated on both the front and back surfaces with the EDM 87-856 coating, enhancing its durability and resistance to wear and tear. This coating also aids in reducing surface reflections, thereby improving the overall transmission efficiency of the filter.

The filter's geometry includes a thickness of 3.5 mm, which is crucial for maintaining the filter's structural integrity and preventing any potential distortions that could affect the quality of the transmitted light. The filter's base shape is circular, making it compatible with a wide range of optical systems.

The 87-856 filter features a cut-on wavelength of 1450nm and a cut-off wavelength of 1500nm, ensuring a narrow and precise bandpass. This characteristic is particularly beneficial in applications that require stringent wavelength control, such as spectroscopy, fluorescence microscopy, and laser technology.

The filter is available in the UVFS MAL-1965 material, which is known for its excellent optical properties and versatility. This material is compatible with a wide range of optical systems and can withstand harsh environmental conditions, making the 87-856 filter a reliable choice for various applications.

In conclusion, the 87-856 12.5 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1475nm is a high-quality, durable, and precise optical component that is ideal for applications requiring wavelength selection within the 1475nm range.