AC127-019-B 12.7 mm Dia. N-BAF10/N-SF6HT Unmounted Achromatic Doublet; EFL=19mm 650-1050nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- R1
- 12.2 mm
- R2
- -10.6 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-SF6HT
- 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
AC127-019-B 12.7 mm Dia. N-BAF10/N-SF6HT Unmounted Achromatic Doublet; EFL=19mm 650-1050nm
The AC127-019-B is a high-quality unmounted achromatic doublet lens, designed and manufactured by Thorlabs. This lens is specifically engineered for use in the 650-1050nm spectral range, making it ideal for a wide range of applications in the near-infrared region.
The lens features a 12.7 mm diameter and a total thickness of 3.9 mm at the edge. The inner and outer radii are 0, indicating a circular shape. The first radius of curvature (r1) is 12.2 mm, while the second radius (r2) is -10.6 mm, and the third radius (r3) is -77.4 mm. The center thicknesses are 4.5 mm and 1.5 mm for the first and second centers, respectively.
The lens is made from two types of Schott glass: N-BAF10 and N-SF6HT. These materials are chosen for their excellent optical properties in the near-infrared region. The lens is coated with Thorlabs' proprietary AC650-1050-B coating on both the front and back surfaces, enhancing its performance in the specified spectral range.
The lens is classified as a multiplet, indicating that it is composed of multiple elements. This design allows for the correction of chromatic aberrations, ensuring high-quality imaging across the entire spectral range.
