10BPF10-640 25.4 mm Dia. Standard Bandpass Filter 640nm

The 10BPF10-640 is a standard bandpass filter, designed and manufactured by MKS/Newport. This filter is specifically engineered for use in optical systems that require narrowband transmission at the 640nm wavelength. The filter is circular in shape, with a diameter of 25.4mm and a thickness of 6.35mm, making it compatible with a wide range of optical components and systems.

The filter's primary function is to allow light in a specific wavelength range to pass through while blocking light outside this range. The 10BPF10-640 achieves this through its unique coating, which is applied to both the front and back surfaces. The front coating is a 'new bpf10-640' design, while the back surface features the same coating. This coating is designed to provide a high transmission rate at the central wavelength of 640nm, while effectively blocking light at wavelengths below 635nm and above 645nm.

The physical data of the filter is also noteworthy. The cut-on wavelength is 635nm, and the cut-off wavelength is 645nm, indicating a very narrow bandwidth. The central wavelength (cwl) is 640nm, which is the wavelength at which the filter provides the highest transmission.

The filter's geometry and physical data make it an ideal choice for applications that require precise wavelength selection, such as fluorescence microscopy, spectroscopy, and laser systems. The filter is currently in stock and available for immediate purchase, as indicated by its valid weblink status.