Aspherical Lenses, Achromatic, 25.00 mm Diameter, 50.00 mm EFL

The 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

Technical Specs

Lens Type
Achromatic Doublet
Lens Shape
Plano-Convex
Diameter
25.0 mm
Antireflection Coating
425-675 nm
Coating Type
Visible Multilayer
Coating Code
AR.14 - Front
Damage Threshold
1.0 J/cm² @ 1064 nm, 10 ns , 10 Hz
Lens Material
S-FSL5/S-TIH13
Surface Quality
40-20 scratch-dig
Effective Focal Length (EFL)
50.0 mm
Back Focal Length (BFL)
44.08 mm

Radius 2
-31.00 mm
Radius 3
-66.00 mm
Edge Thickness (Te)
7.52 mm
Center Thickness (Tc)
11.5 mm
Thickness, Center 1
9.00 mm
Thickness, Center 2
2.50 mm
Design Wavelengths
587.6 nm
Diameter Tolerance
+0.0/-0.05 mm
Center Thickness Tolerance
± 0.2 mm
Edge Thickness Tolerance
±0.2 mm
Clear Aperture
90% of central diameter

Lens Type
Achromatic Doublet
Lens Shape
Plano-Convex
Diameter
25.0 mm
Antireflection Coating
425-675 nm
Coating Type
Visible Multilayer
Coating Code
AR.14 - Front
Damage Threshold
1.0 J/cm² @ 1064 nm, 10 ns , 10 Hz
Lens Material
S-FSL5/S-TIH13
Surface Quality
40-20 scratch-dig
Effective Focal Length (EFL)
50.0 mm
Back Focal Length (BFL)
44.08 mm

Radius 2
-31.00 mm
Radius 3
-66.00 mm
Edge Thickness (Te)
7.52 mm
Center Thickness (Tc)
11.5 mm
Thickness, Center 1
9.00 mm
Thickness, Center 2
2.50 mm
Design Wavelengths
587.6 nm
Diameter Tolerance
+0.0/-0.05 mm
Center Thickness Tolerance
± 0.2 mm
Edge Thickness Tolerance
±0.2 mm
Clear Aperture
90% of central diameter

Resources & Downloads

3D Product Models

2D Product Drawings

Achromatic Aspherical Lenses(254.3 kB, PDF)
APAC18 Zemax File(6.5 kB, ZMX)

Other

APAC18 RoHS Certificate(702.4 kB, PDF)

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