1180DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 1180nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 1185.5 nm
- Cut On Frequency
- 1174.5 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4482781553820414
- λ
- 1180 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
1180DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 1180nm
The 1180DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 1180nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is of the Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking light outside this range. The cut-on wavelength is 1174.5nm, and the cut-off wavelength is 1185.5nm, providing a narrow bandwidth for precise optical applications.
The 1180DIB12 is made from UVFS Mal-1965, a material known for its optical properties and durability. It features a Thin Lens shape, which is beneficial for applications requiring minimal optical path deviation. The filter has a thickness of 6.1mm, providing structural rigidity while maintaining a low profile.
The front and back surfaces of the filter are coated with KNI 1180DIB, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance by reducing reflection and increasing transmission at the desired wavelength.