717FWP7575 75 x 75 mm Longpass Wratten Colour Filter 717nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Rectangular
- Cut Off Frequency
- 2718 nm
- Cut On Frequency
- 717 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
717FWP7575 75 x 75 mm Longpass Wratten Colour Filter 717nm
The 717FWP7575 is a Longpass Filter from Knight Optical, measuring 75 x 75 mm. This filter is designed to allow light at wavelengths longer than 717nm to pass through while blocking shorter wavelengths. It is made from UVFS Mal- 1965 material, a common choice for optical filters due to its durability and optical clarity.
The filter has a thickness of 0.1mm, making it suitable for use in a variety of applications where space is a constraint. The cut on wavelength is 717nm, and the cut off wavelength is 2718nm, providing a wide range of transmission.
Both the front and back of the filter are coated with KNI 717FWP, a coating that enhances the filter's performance and durability. The filter's shape is thin lens, a design that minimizes optical aberrations and ensures accurate light transmission.
This filter is currently in stock at Knight Optical and can be purchased directly from their website. The filter's catalog number is 717FWP7575, and it can be found at the following weblink: https://www.knightoptical.com/stock/default/wratten-colour-filter-75x75mm-717nm-long-pass.html
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