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Plano-Concave Cylindrical Lenses
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Plano concave cylindrical lenses are negative‑power optical components with one flat (plano) surface and one concave cylindrical surface. They diverge collimated light along the curved axis only, leaving the orthogonal axis fully unchanged—delivering precise one‑dimensional beam expansion for laser diode shaping, anamorphic correction, and line beam control.
Parameters
Specification
Material
Optical Glasses, Fused Silica, Sapphire, Infrared Material, etc.
Dimension Range
0.5 ~ 350mm
Dimension Tolerance +/-0.01mm Focal Length Tolerance +/-1% PV λ/10 Surface Quality 20-10 Centration ≤30‘’ Clear Aperture > 90% of diameter Bevel 0.2mm × 45° Coating As customer's request Key Features
- One Axis Diverging Beam Control： Diverges light into a controllable line (not a point) along a single axis, ideal for expanding elliptical laser beams and adjusting beam aspect ratio without distorting the orthogonal dimension.
- Negative Optical Power： Provides consistent divergence for collimated or slightly converged beams; perfect for pairing with plano convex cylindrical lenses to circularize laser diode output and correct astigmatism.
- Aberration Optimized Geometry： Engineered to minimize spherical aberration when light hits the concave surface first, ensuring clean, uniform line profiles for high precision metrology and imaging.
- Broad Spectral Material Choices： Available in N BK7, UV fused silica, CaF₂, ZnSe—covering UV, visible, and infrared bands for spectroscopy, industrial inspection, and IR laser systems.
- Custom Coatings & OEM Sizing： Supports targeted AR coatings (UV/VIS/NIR/IR) to maximize transmission; offered in standard or custom dimensions for seamless integration into laser scanners, barcode readers, and light sheet microscopy setups.
The Applications of Cylindrical Lenses
- Laser diode beam circularization & elliptical beam correction
- One dimensional beam expansion for line illumination
- Spectroscopy & optical metrology (slit illumination, linear sensor lighting)
- Machine vision & barcode scanning (wide field line generation)
- Anamorphic lens systems & light sheet imaging
Plano-Concave Cylindrical Lenses
Still deciding? Get samples first, Contact US !
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