650DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 650nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 655 nm
- Cut On Frequency
- 645 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4565349734645043
- λ
- 650 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
650DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 650nm
The 650DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to center at 650nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical elements.
The filter is a Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking other wavelengths. In this case, the cut-on wavelength is 645nm, and the cut-off wavelength is 655nm, making it highly effective in isolating the 650nm light. The Central Wavelength (CWL) of this filter is also 650nm, ensuring optimal performance for applications requiring this specific wavelength.
The filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent optical properties. It has a Thin Lens shape, which is beneficial for applications where space is a constraint. The filter's thickness is 6.1mm, providing sufficient structural integrity while minimizing unnecessary bulk.
The front and back of the filter are coated with KNI 650DIB, a proprietary coating from Knight Optical that enhances the filter's performance and durability. This coating ensures high transmission rates and excellent environmental stability, making the filter suitable for various applications.