86-090 25 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 850nm

The 86-090 is a Bandpass Filter with a diameter of 25 mm, sourced from the reputable optical components vendor, Edmund Optics. This filter is specifically designed for use with a central wavelength of 850nm, making it suitable for applications that require precise wavelength selection within this range.

The filter is constructed with a thickness of 3.5 mm, providing durability and stability. It features a hard coating on both the front and back surfaces, enhancing its resistance to wear and environmental factors, thereby extending its lifespan. The coating also aids in reducing unwanted reflections, improving the overall transmission efficiency of the filter.

The Bandpass Filter's physical data includes a cut-on wavelength of 845nm and a cut-off wavelength of 855nm. This narrow bandwidth allows for the selective transmission of light, reducing unwanted noise and enhancing the signal-to-noise ratio in your optical system. The cut-on and cut-off wavelengths are crucial specifications in bandpass filters, as they determine the range of wavelengths that will be transmitted.

The filter's geometry is defined by its circular shape and a diameter of 25 mm. This circular shape is a common form factor in optical components, as it allows for easy integration into various optical systems. The diameter of the filter is another critical dimension, as it determines the maximum size of the beam that can pass through the filter.