315FCS2500 25 mm Dia. Colour Glass Longpass Filter 320nm
- Type
- Filter
- Subtype
- Color Glass
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 2725 nm
- Cut On Frequency
- 320 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458448271212196
- λ
- 588 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
315FCS2500 25 mm Dia. Colour Glass Longpass Filter 320nm
The 315FCS2500 is a 25 mm diameter Color Glass Filter, specifically designed for longpass applications with a cut-on wavelength of 320nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is made from UVFS Mal-1965 material, a unique glass composition that offers excellent optical performance in the ultraviolet and visible spectrum regions. It features a thin lens shape, with a thickness of 3mm, providing a compact and lightweight solution for optical systems.
The 315FCS2500 filter is coated on both sides with KNI 315FCS, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance by ensuring high transmission and low reflection across the passband. The coating also provides excellent environmental stability, ensuring the filter maintains its performance even under harsh conditions.
The filter's physical data includes a cut-on wavelength of 320nm and a cut-off wavelength of 2725nm. This means it allows light with wavelengths above 320nm to pass through while blocking light with wavelengths below this value. The filter's geometry, with a 25mm diameter, ensures it can be easily integrated into various optical systems.