85-912 50 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1400nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- Cut Off Frequency
- 1425 nm
- Cut On Frequency
- 1375 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4457794402476594
- λ
- 1400 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
85-912 50 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1400nm
The 85-912 is a Bandpass Filter with a 50 mm diameter, manufactured by Edmund Optics. This filter is specifically designed for use in the infrared spectrum, with a central wavelength (CWL) of 1400nm. The filter's primary function is to allow light transmission within a specific range of wavelengths while blocking out unwanted light from other parts of the spectrum.
The 85-912 filter features hard coating on both the front and back surfaces, indicated by the "OD 4.0" in its name. This hard coating enhances the filter's durability and resistance to scratches and other forms of damage, making it suitable for use in various applications. The filter's thickness is 3.5mm, and it has a cut-on wavelength of 1375nm and a cut-off wavelength of 1425nm.
This filter is designed in a thin lens shape, which can be advantageous in certain applications due to its compact size and light weight. The filter's geometry includes a 50mm diameter, which is a common size for many optical components, making it compatible with a wide range of systems and setups.
The 85-912 filter is currently in stock and available for purchase through the Edmund Optics website. For more detailed information, including technical specifications and performance data, please refer to the product's webpage.