Description
Plano Concave Cylindrical Lenses – Precision Beam Divergence & Line Shaping
Description:
Plano Concave Cylindrical Lenses feature one flat (plano) surface and one concave cylindrical surface, which diverges collimated light along a single axis to form a linear beam. This uniaxial optical behavior makes them ideal for applications requiring controlled beam expansion, line width adjustment, or laser beam shaping. Unlike spherical lenses, they only affect light propagation in one dimension, preserving the collimation of orthogonal rays.
Materials:
BK7 / H-K9L: Cost-effective, high transmittance in VIS-NIR, suitable for general industrial and laboratory use
Fused Silica (JGS1/JGS2): Ultra-low thermal expansion, high UV transmittance, excellent laser damage resistance for high-power laser systems
Sapphire: Extreme hardness, high thermal conductivity, ideal for harsh environments and high-temperature applications
Key Specifications:
Size (Length × Width): 2mm × 2mm – 150mm × 150mm
Focal Length: Customizable from -5mm to -5000mm
Surface Quality: 60/40 (standard), 40/20 (precision), 20/10 (high precision), 10/5 (ultra-precision)
Surface Accuracy (Power): λ/4 @ 633nm (standard), λ/10 @ 633nm (precision)
Parallelism (Wedge): ≤ 1 arcmin (standard), ≤ 30 arcsec (precision)
Coating Options:
Uncoated
Single-layer AR coating (VIS: 400–700nm)
Broadband AR coating (VIS-NIR: 400–1100nm, NIR: 700–1700nm)
UV AR coating (200–400nm)
Applications:
Laser diode collimation & beam expansion
Barcode scanners & laser line generators
Optical measurement systems & spectroscopy
Medical laser devices & machine vision systems
Customization:
We support fully customized designs, including non-standard dimensions, special focal lengths, edge treatments (beveled/rounded), and coating specifications. Drawings in DXF/DWG/STEP format are accepted for precise manufacturing.
