84-122 50 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 775nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- Cut Off Frequency
- 802 nm
- Cut On Frequency
- 748 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4537624758949184
- λ
- 775 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
84-122 50 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 775nm
The 84-122 is a Bandpass Filter, specifically designed for Fluorescence applications, offered by Edmund Optics. This filter, with a catalog number 84-122, has a diameter of 50 mm and a thickness of 2 mm, making it a substantial yet manageable component for various optical setups.
The filter's primary function is to allow light within a specific wavelength range to pass through while blocking out other wavelengths. In this case, the Cut-on wavelength is 748 nm, and the Cut-off wavelength is 802 nm, with the Central Wavelength at 775 nm. This means it is particularly effective at filtering light in the near-infrared spectrum.
The filter is made from UVFS Mal-1965 material, a common choice for its optical properties and durability. The front and back of the filter are coated with EDm 84-090, a hard coating that enhances the filter's longevity and resistance to wear and tear, making it suitable for demanding environments.
The filter's shape is that of a Thin Lens, suggesting it may have some light-focusing capabilities, although this is not its primary function. The filter is currently in stock and available for purchase through the provided weblink.