85-894 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1100nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 1125 nm
- Cut On Frequency
- 1075 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4492036096592873
- λ
- 1100 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
85-894 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1100nm
The 85-894 is a Bandpass Filter, specifically designed by Edmund Optics with a 25 mm diameter and a thickness of 3.5 mm. This filter is part of the UVFS MAL-1965 material ID family, which is renowned for its high-quality optical properties.
The filter's primary function is to allow light transmission within a specific wavelength range while blocking light outside this range. The 85-894 is designed to pass light with a center wavelength (CWL) of 1100nm, with a cut-on wavelength of 1075nm and a cut-off wavelength of 1125nm. This makes it ideal for applications that require precise wavelength selection.
The 85-894 is hard coated on both the front and back surfaces with the EDM 85-882 coating. This coating enhances the filter's durability and resistance to environmental factors, ensuring long-lasting performance. The filter's thin lens shape further contributes to its versatility, making it suitable for a wide range of optical systems.
According to the vendor, this item is currently in stock and can be purchased directly from the Edmund Optics website using the provided weblink. The item's catalog number, 85-894, can be used for easy reference and identification.