Negative Meniscus Lens
Negative Meniscus Lenses are precision optical lenses with a concave surface and a convex surface, designed to provide negative focal length while reducing spherical aberration compared with conventional negative lenses. Chenyu Optics manufactures negative meniscus lenses in BK7, fused silica and UV fused silica, uncoated or with UV AR, VIS AR and NIR AR coatings.
Negative Meniscus Lens Overview
Negative Meniscus Lenses are precision optical lenses with a concave surface and a convex surface, designed to provide negative focal length while reducing spherical aberration compared with conventional negative lenses.
By optimizing the curvature combination, negative meniscus lenses provide controlled beam divergence and improved optical performance. They are widely used in laser systems, beam expansion assemblies, imaging systems and optical instruments requiring precise aberration control.
Chenyu Optics supports custom negative meniscus lens manufacturing according to customer drawings, including custom diameter, focal length, surface accuracy and coating design for prototype and repeat production.
Key Advantages of Negative Meniscus Lens
Laser Beam Expansion & Aberration Correction
Negative meniscus lenses are widely used for beam divergence control with reduced aberration in laser beam expansion systems, imaging assemblies and precision optical instruments.
Typical Specifications of Negative Meniscus Lens
| Material Options | BK7, Fused Silica, UV Fused Silica |
|---|---|
| Optical Function | Beam divergence / Aberration correction |
| Focal Length | Customized |
| Transmission | High optical transmission |
| Surface Accuracy | λ/4 – λ/10 @ 633 nm |
| Surface Quality | 20-10 / 40-20 scratch-dig |
| Aberration Control | Reduced spherical aberration |
| Coating Options | Uncoated, UV AR, VIS AR, NIR AR, custom coating |
Lens Geometry & Optical Principle
Why Choose Chenyu Optics for Negative Meniscus Lens
Chenyu Optics focuses on drawing-based precision lens manufacturing for laser, imaging and scientific optical systems. We support prototype verification, small-batch production and repeat manufacturing for non-standard negative meniscus lenses.
Manufacturing Capability for Negative Meniscus Lens
Precision Grinding & Polishing
Precise curvature control on both optical surfaces to achieve optimized beam divergence and reduced spherical aberration.
Optical Coating
UV AR, VIS AR and NIR AR coating options for laser, imaging and scientific instrument applications.
Inspection & Packaging
Dimensional inspection, surface review, optical performance checking and protective packaging before shipment.
Custom Manufacturing Options for Negative Meniscus Lens
Dimensions & Focal Length
Custom diameter and focal length can be manufactured according to customer drawings, with standard or custom meniscus curvature design.
Surface & Optical Quality
Surface accuracy, surface quality and aberration control can be selected according to optical performance and system requirements.
Coating & Wavelength Design
Uncoated, UV AR, VIS AR, NIR AR and custom AR coatings can be specified for laser systems, imaging or broadband applications.
Lens Shape Comparison
| Negative Meniscus | Double Concave | Plano Concave | Plano-Convex | |
|---|---|---|---|---|
| Focal Length | Negative | Negative | Negative | Positive |
| Surface Configuration | One concave, one convex surface | Two concave surfaces (symmetrical) | One flat, one concave surface | One flat, one convex surface |
| Aberration Behavior | Reduced spherical aberration | Higher spherical aberration at large apertures | Moderate spherical aberration | Moderate spherical aberration |
| Typical Applications | Precision beam divergence, aberration-sensitive systems | Laser beam expansion, divergence control | Laser beam expansion, collimation systems | Focusing systems, laser collimation |
Applications of Negative Meniscus Lens
Laser Beam Expansion Systems
Beam expansion with reduced aberration for laser optical systems.
Laser Beam Divergence Control
Precise negative focal length for beam divergence adjustment.
Optical Imaging Systems
Improved image quality through reduced spherical aberration.
Aberration Correction Assemblies
Meniscus curvature design for precision aberration control.
Optical Instruments
Precision negative lenses for optical instrument design.
Scientific Research Equipment
Precision lenses for research and laboratory optical setups.
Negative Meniscus Lens FAQ
What is a negative meniscus lens used for?
A negative meniscus lens is used to diverge light beams while reducing spherical aberration in optical systems.
What is the advantage of a negative meniscus lens compared with a double concave lens?
The meniscus curvature design provides better aberration control and can improve beam quality in precision systems.
Can negative meniscus lenses be used in laser systems?
Yes. They are commonly used for beam expansion, divergence adjustment, and laser optical path control.
Can focal length and coatings be customized?
Yes. Chenyu Optics provides customized focal lengths, materials, dimensions, and AR coating options.
What information should I provide for a quotation?
Please provide diameter, focal length, 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 Negative Meniscus Lenses?
Send us your drawing, focal length, diameter, coating requirements and quantity. Chenyu Optics will review the optical and mechanical specifications and provide a suitable negative meniscus lens manufacturing suggestion.