AC508-500-AB-ML 50.8 mm Dia. N-BAK4/N-SF10 Mounted Achromatic Doublet; EFL=500mm 400-1100nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- R1
- 230.3 mm
- R2
- -343.9 mm
Material 1
- Name
- N-BAK4
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5709961571059783
- λ
- 550 nm
- B1
- 1.28834642
- C1
- 0.00779980626 μm2
- B2
- 0.132817724
- C2
- 0.0315631177 μm2
- B3
- 0.945395373
- C3
- 105.965875 μm2
Material 2
- Name
- N-SF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7336618876174243
- λ
- 550 nm
- B1
- 1.62153902
- C1
- 0.0122241457 μm2
- B2
- 0.256287842
- C2
- 0.0595736775 μm2
- B3
- 1.64447552
- C3
- 147.468793 μm2
AC508-500-AB-ML 50.8 mm Dia. N-BAK4/N-SF10 Mounted Achromatic Doublet; EFL=500mm 400-1100nm
The AC508-500-AB-ML is a high-quality achromatic doublet lens, designed and manufactured by Thorlabs. This lens is specifically engineered for use within the 400-1100nm wavelength range, making it suitable for a wide array of optical applications. The lens features a 50.8 mm diameter, offering a substantial surface area for light transmission.
The lens is constructed from two types of glass, N-BAK4 and N-SF10, both sourced from Schott. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens is coated with a broadband anti-reflection (AR) coating, specifically designated as THo AB ACHROMATIC AR, which is applied to both the front and back surfaces. This coating enhances the lens's transmission capabilities while reducing unwanted reflections.
The lens's geometry is intricately designed, with an edge thickness of 11.5 mm and a central thickness of 9 mm for the first surface, and 4 mm for the second surface. The lens's curvature is also precisely controlled, with radii of 230.3 mm and -343.9 mm for the first and second surfaces, respectively. These specifications contribute to the lens's excellent imaging capabilities.
