990DIB25 25 mm Dia. Standard Interference Bandpass Filter 990nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 995 nm
- Cut On Frequency
- 985 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4505442352863196
- λ
- 990 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
990DIB25 25 mm Dia. Standard Interference Bandpass Filter 990nm
The 990DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 990nm. 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 light outside this range. The 990DIB25 is cut on at 985nm and cut off at 995nm, ensuring a tight bandpass performance. The central wavelength (CWL) of the filter is 990nm, indicating that this is the wavelength at which the filter has its maximum transmission.
The filter is made from UVFS Mal-1965, a material known for its excellent optical properties. It has a circular base shape, a common design for filters due to its ease of integration into optical systems. The filter's geometry includes a thickness of 6.1mm, providing robustness and stability.
The 990DIB25 features a KNI 990DIB coating on both the front and back surfaces. This coating is specifically designed for this filter, enhancing its performance and durability. The filter's shape is classified as a Thin Lens, indicating that it has been designed to minimize optical aberrations and distortions.
According to the vendor, the 990DIB25 is currently in stock and can be purchased directly from Knight Optical's website. The link to the product page is provided in the item data for your convenience.