Description
Double Convex Cylindrical Lenses – High-Efficiency Line Focusing & Collimation
Description:
Double Convex Cylindrical Lenses have two symmetric convex cylindrical surfaces, which focus parallel incident light into a sharp linear focal line along the axis of curvature. This design provides higher focusing efficiency and shorter focal lengths compared to plano-convex cylindrical lenses, making them ideal for applications requiring tight line focusing or collimation of diverging light sources.
Materials:
BK7 / H-K9L: General-purpose optical glass, good transmittance in 350–2000nm
Fused Silica: UV-transparent, low thermal drift, suitable for UV lasers and precision metrology
Optical Crown Glass: Cost-effective option for non-critical imaging applications
Key Specifications:
Size (Length × Width): 3mm × 3mm – 200mm × 200mm
Focal Length: Customizable from 5mm to 5000mm
Surface Quality: 60/40 (commercial), 40/20 (precision), 20/10 (high precision)
Surface Accuracy: λ/4 @ 633nm (standard), λ/10 @ 633nm (precision)
Centering Error: ≤ 0.1mm (standard), ≤ 0.05mm (precision)
Coating Options:
VIS AR coating (400–700nm)
BBAR coating (400–1100nm)
NIR AR coating (700–1700nm)
Reflective coating (for beam folding applications)
Applications:
Laser marking & engraving systems
Machine vision line scan cameras
Spectrophotometers & monochromators
Medical endoscopes & projection optics
Laser interferometers & optical metrology tools
Customization:
OEM/ODM services are available for custom focal lengths, dimensions, edge finishes, and anti-reflection/reflective coatings. We can also produce lenses with asymmetric curvature for specialized beam shaping needs.
