Achromatic Doublet Lens, Visible, 12.7 mm, 19.0 mm EFL, 430-700 nm

The PAC019AR.14 Visible Achromatic Doublet Lens is a 430 to 700 nm antireflection coated, 1/2 inch (12.7 mm) diameter, N-BaF10 and N-SF14 precision achromatic doublet lens with an effective focal length of 19.0 mm. This achromat is computer designed to effectively minimize spherical aberration and coma when operating at infinite conjugate ratio, yielding smaller focused spot sizes. Unlike singlet lenses, this results in a constant focal length independent of aperture and far better off-axis performance. Achromats are superior to singlet lenses for monochromatic applications at any visible wavelength.
Specifications
- Lens TypeAchromatic Doublet
- Lens ShapePlano-Convex
- Diameter12.7 mm
- Antireflection Coating430-700 nm
- Coating TypeVisible Multilayer
- Coating CodeAR.14
- Damage Threshold1.0 J/cm2 @ 1064 nm, 10 ns , 10 Hz
- TransmissionT>97%
- Lens MaterialN-BaF10/N-SF14
- Surface Quality40-20 scratch-dig
- λ/4
- 1.5 λ
- Effective Focal Length (EFL)19.0 mm
- Back Focal Length (BFL)15.1 mm
- F/#1.5
- Radius of Curvature (R)12.904 mm
- Radius 2-8.955 mm
- Radius 3-65.868 mm
- Edge Thickness (T<sub>e</sub>)4.9 mm
- Center Thickness (T<sub>c</sub>)6.85 mm
- Thickness, Center 15.35 mm
- Thickness, Center 21.5 mm
- OrientationSteepest convex surface should face the infinite conjugate
- Design Wavelengths589 nm
- Centration≤3 arc min
- Diameter Tolerance+0/-0.1 mm
- Focal Length Tolerance±2.0%
- Center Thickness Tolerance±0.2 mm
- Cleaning

Resources & Downloads
PAC Series Drawing(164.8 kB, PDF)
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