411FWP7575 75 x 75 mm Longpass Wratten Colour Filter 411nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Rectangular
- Cut Off Frequency
- 2697 nm
- Cut On Frequency
- 411 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
411FWP7575 75 x 75 mm Longpass Wratten Colour Filter 411nm
The 411FWP7575 is a Longpass Filter from Knight Optical, measuring 75 x 75 mm with a thickness of 0.1 mm. This filter is designed to cut on at 411nm and cut off at 2697nm, making it ideal for applications that require long-pass filtration.
The filter is made from UVFS Mal- 1965 material, a common choice for optical filters due to its durability and optical properties. The filter's coating, KNI 411FWP, is applied to both the front and back surfaces, further enhancing its performance and longevity.
This filter is rectangular in shape and has a thin lens geometry. It is currently in stock at Knight Optical and is available for purchase through their website. The filter's catalog number, 411FWP7575, can be used to easily locate it on the Knight Optical website or in their catalog.
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