640DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 640nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 645 nm
- Cut On Frequency
- 635 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4568118189984216
- λ
- 640 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
640DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 640nm
Knight Optical's 640DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to center at 640nm. This filter is a crucial component for applications that require precise wavelength selection and narrow bandwidth transmission.
The filter is made from UVFS Mal-1965, a high-quality material known for its excellent optical properties. It features a Thin Lens shape, which is ideal for applications where minimal thickness is required. The filter's geometry includes a diameter of 12.5 mm and a thickness of 6.1 mm, making it suitable for a wide range of optical systems.
The 640DIB12 has a Cut-On wavelength of 635nm and a Cut-Off wavelength of 645nm, ensuring a narrow bandwidth transmission around the central wavelength. The coating on both the front and back surfaces is KNI 640DIB, a proprietary coating developed by Knight Optical for enhanced performance and durability.
This filter is currently in stock and available for immediate shipping. For more information, you can visit the product page at https://www.knightoptical.com/stock/default/640nm-interference-bandpass-filter-12-5mmdiax10nmbw.html.
