84-781 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 400nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 425 nm
- Cut On Frequency
- 375 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4701161180769884
- λ
- 400 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
84-781 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 400nm
The 84-781 is a Bandpass Filter, sourced from the reputable vendor Edmund Optics. This particular filter is designed for use with wavelengths of 400nm, making it suitable for applications requiring precise control over specific light frequencies.
The filter boasts a circular shape, with a diameter of 25mm, providing a substantial surface area for light to pass through. The thickness of the filter is 3.5mm, offering robustness and durability. The filter's material ID is UVFS MAL-1965, indicating its specific composition and properties.
The 84-781 features a Hard Coated OD 4.0, which enhances its durability and resistance to wear and tear. The coating also aids in reducing unwanted reflections and increasing transmission efficiency.
The filter's physical data includes a cut-on wavelength of 375nm and a cut-off wavelength of 425nm. This means that it allows light within this specific range to pass through while blocking out other wavelengths. The Central Wavelength (CWL) is 400nm, indicating the midpoint of the filter's passband.
The front and back of the filter are coated with EDm 84-769, suggesting that the coating is consistent across both sides. The filter's shape is that of a Thin Lens, which may have implications for its optical properties and how it interacts with other optical elements in a system.
