AC254-050-A-ML 25.4 mm Dia. N-BAF10/N-SF10 Mounted Achromatic Doublet; EFL=50mm 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- R1
- 33.3 mm
- R2
- -22.3 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-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
AC254-050-A-ML 25.4 mm Dia. N-BAF10/N-SF10 Mounted Achromatic Doublet; EFL=50mm 400-700nm
This is the AC254-050-A-ML, a 25.4 mm diameter Achromatic Doublet lens, mounted and optimized for the visible spectrum (400-700nm) with an effective focal length (EFL) of 50mm. The lens is sourced from Thorlabs, a renowned optical components manufacturer.
The lens is a multiplet, meaning it is composed of multiple optical elements. Specifically, it is made from two types of Schott glass: N-BAF10 and N-SF10. These materials are chosen for their specific refractive indices and dispersion properties, which help to minimize chromatic aberration, a common issue in lens systems where different colors of light focus at different points.
The lens has a base shape of a circle and features a precise geometry. The diameter is 25.4mm, and it has a thickness of 8.7mm at the edge. The inner and outer radii are 0, and the first and second radii of curvature are 33.3mm and -22.3mm, respectively. The center thicknesses are 9mm and 2.5mm for the first and second elements, respectively.
The lens is coated with Thorlabs' AC400-700-A coating on both the front and back surfaces. This coating is designed to optimize the lens' performance in the visible spectrum, enhancing its transmission and reducing reflection.
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