Achromatic Doublet Lens, Visible, 25.4 mm, 175 mm EFL, 430-700 nm
Achromatic Doublet Lens, Visible, 25.4 mm, 175 mm EFL, 430-700 nm
Model: PAC061AR.14
Product Series Overview
Visible Achromatic LensesThe PAC061AR.14 Visible Achromatic Doublet Lens is a 430 to 700 nm antireflection coated, 1 inch (25.4 mm) diameter, N-BK7 and N-SF5 precision achromatic doublet lens with an effective focal length of 175 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
- Diameter25.4 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-BK7/N-SF5
- Surface Quality40-20 scratch-dig
- λ/4
- 1.5 λ
- Effective Focal Length (EFL)175 mm
- Back Focal Length (BFL)172.1 mm
- F/#6.9
- Radius of Curvature (R)106.550 mm
- Radius 2-78.493 mm
- Radius 3-234.186 mm
- Edge Thickness (T<sub>e</sub>)5.2 mm
- Center Thickness (T<sub>c</sub>)6.3 mm
- Thickness, Center 13.8 mm
- Thickness, Center 22.5 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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