65-181 25 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 852nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 857 nm
- Cut On Frequency
- 847 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4524672257433013
- λ
- 852 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
65-181 25 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 852nm
The 65-181 is a Bandpass Filter, specifically designed by Edmund Optics, a renowned vendor in the optical industry. This filter, with a catalog number 65-181, is a crucial component in various optical systems, particularly those requiring precise wavelength selection.
The filter has a circular shape, with a diameter of 25 mm, making it compatible with a wide range of optical systems. It boasts a thickness of 3.5 mm, providing robustness and stability in its operation. The 65-181 filter is designed to operate at a central wavelength of 852 nm, which is a common wavelength used in various optical applications.
The 65-181 filter features hard coating on both the front and back surfaces, denoted as 'edm 65-120'. This coating enhances the filter's durability and resistance to wear and tear, ensuring long-lasting performance. The cut-on wavelength is 847 nm, and the cut-off wavelength is 857 nm, providing a narrow bandwidth of 10 nm, which is essential for applications requiring high wavelength specificity.
The filter's geometry is defined by its diameter and thickness, and it has a thin lens shape. The physical data, including the cut-on, cut-off, and central wavelength, are precisely controlled during the manufacturing process to ensure the filter's performance meets the stringent requirements of modern optical systems.