670FIJ12 12.5 mm Dia. Standard Interference Bandpass Filter 670nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 675 nm
- Cut On Frequency
- 665 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.45601149607456
- λ
- 670 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
670FIJ12 12.5 mm Dia. Standard Interference Bandpass Filter 670nm
The 670FIJ12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to center at a wavelength of 670nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
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 665nm, and the cut-off wavelength is 675nm, making it highly effective in isolating the 670nm wavelength.
The filter is made from UVFS MAL-1965, a material known for its optical properties and durability. It has a Thin Lens shape, which is beneficial for applications that require minimal optical path deviation. The filter's geometry includes a diameter of 12.5mm and a thickness of 6.1mm, making it compact and easy to integrate into various optical systems.
The coating on both the front and back surfaces of the filter is KNI 670DIJ. This coating enhances the filter's performance by ensuring high transmission at the desired wavelength and maintaining a high level of blocking for unwanted wavelengths.