Aspherical Lenses, Achromatic, 25.00 mm Diameter, 50.00 mm EFL
Aspherical Lenses, Achromatic, 25.00 mm Diameter, 50.00 mm EFL
Model: APAC18
In Stock
Product Series Overview
Visible Achromatic Aspherical LensesThe APAC18 Achromatic Aspherical Lens is a 425 to 675 nm antireflection coated (front surface), 0.98 inch (25.0 mm) diameter, S-FSL5 and S-TIH13 achromatic doublet lens with an effective focal length of 50.0 mm. The back surface has a molded aspheric polymer cap with a protective seal. This achromat is computer optimized to provide optimal color correction and the smallest RMS spot size close to the diffraction limit. The Aspherical achromatic lenses not only have superior color correction comparing to standard achromats, but also has very similar spherical aberration corrections to those of machined aspheres. To reduce the wavefront errors arising from the standard achromats the second surface of these aspherical achromats are fused with a molded polymer surface. It is an ideal choice for Imaging, Microscopy, Fiber coupling, and Scanning and other applications that use a broadband laser or normal light sources.
Specifications
- Lens TypeAchromatic Doublet
- Lens ShapePlano-Convex
- Diameter25.0 mm
- Antireflection Coating425-675 nm
- Coating TypeVisible Multilayer
- Coating CodeAR.14 - Front
- Damage Threshold1.0 J/cm2 @ 1064 nm, 10 ns , 10 Hz
- Lens MaterialS-FSL5/S-TIH13
- Surface Quality40-20 scratch-dig
- Effective Focal Length (EFL)50.0 mm
- Back Focal Length (BFL)44.12 mm
- Radius of Curvature (R)28.50 mm
- Radius 2-31.00 mm
- Radius 3-63.00 mm
- Edge Thickness (T<sub>e</sub>)7.42 mm
- Center Thickness (T<sub>c</sub>)11.58 mm
- Thickness, Center 19.00 mm
- Thickness, Center 22.58 mm
- Design Wavelengths587.6 nm
- Diameter Tolerance+0.0/-0.05 mm
- Center Thickness Tolerance± 0.2 mm
- Edge Thickness Tolerance±0.2 mm
- Clear Aperture90% of central diameter
Resources & Downloads
3D Product Models
2D Product Drawings
Achromatic Aspherical Lenses(254.3 kB, PDF)
Other
APAC18 RoHS Certificate(702.4 kB, PDF)
Software
APAC18 Zemax File(6.5 kB, ZMX)
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