AC508-250-C 50.8 mm Dia. N-BAF10/N-SF6 Unmounted Achromatic Doublet; EFL=250.2mm 1050-1700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- R1
- 78.6 mm
- R2
- -95.9 mm
Material 1
- Name
- N-BAF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6730569473646495
- λ
- 550 nm
- B1
- 1.5851495
- C1
- 0.00926681282 μm2
- B2
- 0.143559385
- C2
- 0.0424489805 μm2
- B3
- 1.08521269
- C3
- 105.613573 μm2
Material 2
- Name
- N-SF6
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.811866267147773
- λ
- 550 nm
- B1
- 1.77931763
- C1
- 0.0133714182 μm2
- B2
- 0.338149866
- C2
- 0.0617533621 μm2
- B3
- 2.08734474
- C3
- 174.01759 μm2
AC508-250-C 50.8 mm Dia. N-BAF10/N-SF6 Unmounted Achromatic Doublet; EFL=250.2mm 1050-1700nm
The AC508-250-C is a high-quality achromatic doublet lens, designed and manufactured by Thorlabs. This lens, with a diameter of 50.8 mm, is specifically engineered for use in the 1050-1700nm wavelength range, making it ideal for applications in the near-infrared spectrum.
The lens is constructed from two types of Schott glass, N-BAF10 and N-SF6, which are carefully selected and arranged to minimize chromatic aberration. This results in a lens that can focus multiple wavelengths of light onto a single point, enhancing the performance of imaging and detection systems.
The lens has a focal length of 250.2mm, as determined by its edge thickness of 10.2mm and its central thicknesses of 10mm and 3mm. The curvature of the lens surfaces is also precisely controlled, with radii of 78.6mm, -95.9mm, and 230.7mm, ensuring optimal image quality.
The lens is coated with Thorlabs' AC1050-1700-C coating on both the front and back surfaces. This coating is specifically designed to enhance the lens' performance in the 1050-1700nm wavelength range, providing improved transmission and durability.
