494FWP7575 75 x 75 mm Longpass Wratten Colour Filter 494nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Rectangular
- Cut Off Frequency
- 2698 nm
- Cut On Frequency
- 494 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
494FWP7575 75 x 75 mm Longpass Wratten Colour Filter 494nm
The 494FWP7575 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 494nm and cut off at 2698nm, making it ideal for applications that require long-pass filtration at this specific wavelength.
The filter is made from UVFS Mal- 1965, a material known for its optical properties and durability. It features a rectangular base shape, which is a common choice for filters due to its ease of use and compatibility with various optical systems.
The 494FWP7575 is coated on both the front and back with KNI 494FWP, a coating that likely enhances its performance and longevity. The filter's shape is thin lens, further contributing to its versatility and compatibility with different optical setups.
This filter is currently in stock at Knight Optical and can be purchased directly from their website. The provided weblink leads directly to the product page for easy access and purchase.
