581FDS25 25 mm Dia. Shortpass Dichroic Filter 581nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 581 nm
- Cut On Frequency
- 837 nm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
581FDS25 25 mm Dia. Shortpass Dichroic Filter 581nm
The 581FDS25 is a high-quality dichroic filter, sourced from Knight Optical, designed for shortpass applications with a 581nm cutoff wavelength. This filter is crafted from the renowned N-BK7 glass from Schott, ensuring durability and reliability.
The filter boasts a circular shape with a diameter of 25mm and a thickness of 1.1mm, making it suitable for a wide range of optical applications. The cut-on wavelength is 837nm, and the cutoff wavelength is 581nm, providing a sharp transition between the pass and stop bands.
The coating on both the front and back of the filter is KNI 581FDS-0, further enhancing its performance in shortpass applications. The filter's geometry is that of a thin lens, contributing to its versatility and ease of integration into various optical systems.
The 581FDS25 is currently in stock and available for immediate purchase from Knight Optical's website. With its superior quality and precise specifications, this filter is an excellent choice for those seeking a reliable and high-performing shortpass dichroic filter.
