685FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 685nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 2200 nm
- Cut On Frequency
- 685 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
685FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 685nm
The 685FAP2500 is a Longpass Filter with a 25 mm diameter, sourced from Knight Optical. This filter is designed to transmit light at wavelengths above 685nm while blocking light at wavelengths below this point. The filter's cut-on wavelength is 685nm, and it has a cut-off wavelength of 2200nm.
The filter is made from UVFS MAL-1965, a type of acrylic material, and has a thickness of 1mm. It features a Thin Lens shape and is coated with KNI 685FAP on both the front and back surfaces. The filter's geometry includes a diameter of 25mm, making it suitable for a variety of optical applications.
According to the vendor's information, this item is currently in stock and available for purchase. For more details, you can visit the following link: https://www.knightoptical.com/stock/default/acrylic-colour-filter-25mmdia-685nm-long-pass.html