86-980 12.5 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 676nm

The 86-980 is a Bandpass Filter with a diameter of 12.5 mm, manufactured by Edmund Optics. This filter is designed to transmit light within a specific range of wavelengths, while blocking other wavelengths, making it ideal for applications involving fluorescence.

The filter's central wavelength (CWL) is 676nm, which is the wavelength at which the filter has its maximum transmittance. The filter's cut-on wavelength is 658nm, and the cut-off wavelength is 694nm. This means that the filter begins to transmit light at 658nm and stops transmitting at 694nm. The bandwidth of this filter is 29nm, providing a relatively narrow range of transmitted wavelengths.

The filter is made from UVFS Mal-1965 material and has a thickness of 2mm. It features hard coating on both the front and back surfaces, denoted as 'edm 86-980'. This coating enhances the filter's durability and resistance to wear and tear, making it suitable for use in harsh environments.

The filter's geometry is that of a thin lens, which can be beneficial in certain optical systems due to its reduced thickness and weight. The filter's diameter is 12.5mm, which is a common size for many optical components, making it compatible with a wide range of optical systems.

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