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.
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: N-BK7, UV fused silica 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
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