656DIB25 25 mm Dia. Standard Interference Bandpass Filter 656.3nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 661.3 nm
- Cut On Frequency
- 651.3 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4563658906905677
- λ
- 656.3 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
656DIB25 25 mm Dia. Standard Interference Bandpass Filter 656.3nm
The 656DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to isolate the 656.3nm wavelength. This filter is sourced from Knight Optical, a renowned vendor known for their high-quality optical components.
The filter is a Bandpass type, which means it allows light within a specific range of wavelengths to pass through while blocking out other wavelengths. In this case, the 656DIB25 has a Cut-on wavelength of 651.3nm and a Cut-off wavelength of 661.3nm, making it highly effective at isolating the 656.3nm wavelength.
The filter is made from UVFS Mal-1965, a material known for its excellent optical properties. It has a Thin Lens shape, which is designed to minimize optical aberrations and distortions. The filter's geometry includes a diameter of 25mm and a thickness of 6.1mm, making it suitable for a wide range of optical applications.
The filter's coating is another notable feature. Both the front and back surfaces are coated with KNI 656DIB, a coating that enhances the filter's performance and durability. This coating helps to ensure that the filter maintains its specified properties even under harsh environmental conditions.