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Available in plano-convex and plano-concave configurations, these lenses manipulate light in one plane (e.g., horizontal) while maintaining parallelism in the orthogonal plane (e.g., vertical), enabling precise control over beam profile.
Single-axis curvature design for linear focusing, with surface accuracy of λ/4 to ensure uniform line formation .
Focal lengths ranging from 5 mm to 500 mm, customizable for specific line width or sheet thickness requirements.
Low distortion (<0.1%) in the active axis, critical for barcode scanning and laser line projection .
N-BK7 glass for visible light applications (350 nm - 2.0 μm), balancing performance and cost .
Fused silica for UV (185 nm - 2.1 μm) and high-power lasers, offering exceptional purity and damage resistance .
Dual-sided AR coatings to achieve >99% transmittance in the design wavelength range, reducing glare in imaging systems .
Length tolerance ±0.1 mm and width tolerance ±0.05 mm for precise integration into linear array systems.
Axis alignment accuracy < 0.5° to ensure proper orientation between the lens and detector arrays .
In laser diode systems, cylindrical lenses convert elliptical output beams into circular profiles, improving coupling efficiency into fibers and enhancing uniformity in material processing .
These lenses create structured light sheets for 3D surface profiling, enabling precise measurement of object heights and contours in automotive and electronics inspection lines.
In ophthalmology, cylindrical lenses correct astigmatism in diagnostic equipment. They are also used in flow cytometry to shape laser beams into thin sheets for particle counting and analysis .
Cylindrical lenses project laser lines onto barcodes, ensuring reliable reading across varying distances. Their linear focusing capability is also critical in position sensors for edge detection in manufacturing.
Q: Why is axis alignment critical for cylindrical lenses?
A: Misalignment (>0.5°) causes asymmetric beam distortion, reducing measurement accuracy in metrology or barcode scanning failures .
Q: How do plano-convex and plano-concave cylindrical lenses differ?
Plano-convex: Focuses light along the curved axis (e.g., line generation).
Plano-concave: Diverges light along the curved axis (e.g., beam expansion in one dimension).
Q: Can cylindrical lenses be used with high-power lasers?
A: Yes, but select fused silica lenses with laser-grade coatings to withstand high energy densities without damage.
