490FDL50 50 x 50 mm Longpass Dichroic Filter 490nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Knight Optical
Properties
- Shape
- Rectangular
- Cut Off Frequency
- Cut On Frequency
- 490 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
490FDL50 50 x 50 mm Longpass Dichroic Filter 490nm
The 490FDL50 is a high-quality Dichroic Filter, measuring 50 x 50 mm, manufactured by Knight Optical. This filter is designed to transmit light at wavelengths above 490nm, making it ideal for applications that require longpass filtration.
The filter is made from N-BK7 Schott, a widely used optical glass known for its excellent optical properties and durability. It boasts a thickness of 1.1mm, providing robustness and stability. The rectangular shape of the filter allows for easy integration into various optical systems.
The 490FDL50 features a coating of KNI 490FDL-0 on both the front and back surfaces. This coating enhances the filter's performance, ensuring efficient longpass filtration at 490nm. The physical data of the filter indicates a cut-on wavelength of 490nm, meaning it starts to transmit light at this wavelength, and a cut-off wavelength of 0nm, indicating it transmits all wavelengths above 490nm.
This filter is currently in stock and available for immediate purchase from Knight Optical's website. The weblink provided leads directly to the product page, ensuring a seamless purchasing process for interested users.
