740DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 740nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 745 nm
- Cut On Frequency
- 735 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.454435618650584
- λ
- 740 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
740DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 740nm
The 740DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to transmit light in the 740nm wavelength range. 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 light to pass through a specific range of wavelengths while blocking out other wavelengths. In this case, the cut-on wavelength is 735nm, and the cut-off wavelength is 745nm, making it highly effective in isolating the 740nm wavelength. The Central Wavelength (CWL) of this filter is also 740nm, ensuring optimal performance in this specific range.
The 740DIB12 is made from UVFS Mal-1965, a material known for its excellent optical properties. The filter has a Thin Lens shape, which is beneficial for applications that require a compact optical design. The geometry of the filter includes a diameter of 12.5mm and a thickness of 6.1mm, making it suitable for a wide range of optical systems.
The filter's coating is another notable feature. Both the front and back surfaces of the filter are coated with KNI 740DIB, a coating specifically designed to enhance the filter's performance in the 740nm wavelength range. This coating ensures high transmission and excellent blocking of unwanted wavelengths.
