Double Concave Cylindrical Lens
Double Concave Cylindrical Lenses are precision optical components with two cylindrical concave surfaces designed to provide negative focal length and control beam divergence along a single optical axis. Compared with spherical negative lenses, cylindrical lenses provide one-dimensional optical power, making them suitable for precise line shaping and axis-specific beam control. Chenyu Optics manufactures double concave cylindrical lenses in BK7, fused silica and UV fused silica, uncoated or with UV AR, VIS AR and NIR AR coatings.
Double Concave Cylindrical Lens Overview
Double Concave Cylindrical Lenses are precision optical components with two cylindrical concave surfaces designed to provide negative focal length and control beam divergence along a single optical axis.
Compared with spherical negative lenses, cylindrical lenses provide one-dimensional optical power, making them suitable for precise line shaping and axis-specific beam control. They are widely used in laser beam shaping, line generation, beam expansion, optical scanning and machine vision systems.
Chenyu Optics supports custom double concave cylindrical lens manufacturing according to customer drawings, including custom diameter, focal length, cylindrical radius and coating design for prototype and repeat production.
Key Advantages of Double Concave Cylindrical Lens
Laser Line Generation & Beam Shaping
Double concave cylindrical lenses are widely used for one-axis beam divergence control in laser beam shaping systems, line generation setups and optical scanning equipment.
Typical Specifications of Double Concave Cylindrical Lens
| Material Options | BK7, Fused Silica, UV Fused Silica |
|---|---|
| Optical Function | One-dimensional beam divergence / Beam shaping |
| Lens Type | Double concave cylindrical lens |
| Focal Length | Customized |
| Cylindrical Radius | Customized |
| Transmission | High optical transmission |
| Surface Accuracy | λ/4 – λ/10 @ 633 nm |
| Surface Quality | 20-10 / 40-20 scratch-dig |
Lens Geometry & Optical Principle
Why Choose Chenyu Optics for Double Concave Cylindrical Lens
Chenyu Optics focuses on drawing-based precision lens manufacturing for laser, imaging and scanning optical systems. We support prototype verification, small-batch production and repeat manufacturing for non-standard double concave cylindrical lenses.
Manufacturing Capability for Double Concave Cylindrical Lens
Precision Cylindrical Machining
Precise cylindrical surface processing and axis alignment to achieve accurate single-axis beam divergence.
Optical Coating
UV AR, VIS AR and NIR AR coating options for laser, imaging and scanning applications.
Inspection & Packaging
Dimensional inspection, cylindrical surface review, optical performance checking and protective packaging before shipment.
Custom Manufacturing Options for Double Concave Cylindrical Lens
Dimensions & Focal Length
Custom diameter, focal length and cylindrical radius can be manufactured according to customer drawings and optical design requirements.
Surface & Optical Quality
Surface accuracy and surface quality can be selected according to beam shaping and imaging performance requirements.
Coating & Wavelength Design
Uncoated, UV AR, VIS AR, NIR AR and custom AR coatings can be specified for laser, imaging or scanning applications.
Cylindrical vs. Spherical Lens Comparison
| Double Concave Cylindrical | Plano Concave Cylindrical | Double Concave (Spherical) | Negative Meniscus | |
|---|---|---|---|---|
| Axis Symmetry | Single-axis power only | Single-axis power only | Rotationally symmetric | Rotationally symmetric |
| Surface Configuration | Two cylindrical concave surfaces (symmetrical) | One flat, one cylindrical concave surface | Two concave surfaces | One concave, one convex surface |
| Typical Function | Strong, symmetrical one-axis beam divergence | One-axis beam divergence, single-surface control | Strong, symmetrical two-axis beam divergence | Two-axis beam divergence with reduced aberration |
| Typical Applications | Laser line generation, beam shaping, scanning | Laser line generation, beam shaping | Laser beam expansion, divergence control | Precision beam divergence, aberration-sensitive systems |
Applications of Double Concave Cylindrical Lens
Laser Beam Shaping Systems
Symmetrical one-axis beam shaping for laser optical systems.
Laser Line Generation
Precision line generation for laser applications.
Beam Expansion Systems
One-axis beam expansion for optical systems.
Optical Scanning Systems
Beam shaping for optical scanning applications.
Machine Vision Systems
Line generation and beam shaping for industrial inspection.
Industrial Inspection Equipment
Precision cylindrical optics for inspection systems.
Double Concave Cylindrical Lens FAQ
What is a double concave cylindrical lens used for?
A double concave cylindrical lens is used to diverge light along one axis for beam shaping, line generation, and optical path adjustment.
What is the difference between a double concave cylindrical lens and a double concave spherical lens?
A cylindrical lens provides optical power in one direction, while a spherical lens affects light in both axes.
Can double concave cylindrical lenses be used in laser systems?
Yes. They are commonly used for laser line generation, beam expansion, and beam shaping applications.
Can the cylindrical radius and focal length be customized?
Yes. Chenyu Optics provides customized cylindrical radius, focal length, dimensions, materials, and AR coatings.
What information should I provide for a quotation?
Please provide diameter, focal length, cylindrical radius, surface accuracy, surface quality, coating requirement, quantity and drawing if available.
Where can I learn more about lens design?
Additional information on lens design can be found from Edmund Optics.
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Need Custom Double Concave Cylindrical Lenses?
Send us your drawing, focal length, cylindrical radius, diameter, coating requirements and quantity. Chenyu Optics will review the optical and mechanical specifications and provide a suitable double concave cylindrical lens manufacturing suggestion.