Positive Meniscus Lens
Positive Meniscus Lenses are precision spherical lenses with one convex surface and one concave surface, providing positive focal length while helping to reduce spherical aberration in combination with other lens elements. Chenyu Optics manufactures positive meniscus lenses in BK7, fused silica, optical glass and infrared materials, with custom focal length, diameter, surface quality and coating according to customer drawings.
Positive Meniscus Lens Overview
Positive Meniscus Lenses are precision spherical lenses with one convex surface and one concave surface, providing positive focal length for focusing, imaging and beam shaping applications.
Compared with plano convex or double convex lenses, the meniscus geometry helps correct spherical aberration when combined with other lens elements, making it suitable for imaging systems, beam expanders and focusing assemblies with tighter aberration control requirements.
Chenyu Optics supports custom positive meniscus lens manufacturing according to customer drawings, including custom material, focal length, diameter, thickness, surface quality and coating for prototype and repeat production.
Key Advantages of Positive Meniscus Lens
Imaging, Beam Shaping & Laser Systems
Positive meniscus lenses are widely used in laser systems, imaging optics, beam shaping assemblies, machine vision systems and scientific instruments requiring reliable focusing performance.
Typical Specifications of Positive Meniscus Lens
| Material Options | BK7, Fused Silica, optical glass, and infrared materials as applicable |
|---|---|
| Coating Options | Uncoated, broadband AR, laser AR, UV AR, IR AR, custom coating |
| Optical Function | Light focusing / positive focal length |
| Focal Length | Custom, according to customer drawing |
| Surface Accuracy | Up to λ/10 @ 633 nm |
| Surface Quality | 20-10, 40-20 scratch-dig |
| Dimensions | Custom diameter and thickness available |
| Edge Treatment | Ground, chamfered or polished |
Lens Geometry
Why Choose Chenyu Optics for Positive Meniscus Lens
Chenyu Optics focuses on drawing-based precision lens manufacturing for laser, imaging and machine vision optical systems. We support prototype verification, small-batch production and repeat manufacturing for non-standard positive meniscus lenses.
Manufacturing Capability for Positive Meniscus Lens
Precision Grinding & Polishing
Controlled grinding and polishing of both convex and concave surfaces for focal length accuracy, surface quality and optical performance.
AR Coating
Broadband, laser, UV or IR AR coatings selected according to wavelength and application requirements.
Inspection & Packaging
Dimensional inspection, focal length verification, optical performance checking and clean protective packaging before shipment.
Custom Manufacturing Options for Positive Meniscus Lens
Geometry & Dimensions
Diameter, thickness, focal length and edge treatment can be manufactured according to customer drawings and optical system requirements.
Surface & Optical Quality
Surface accuracy and surface quality can be selected according to imaging or laser application requirements.
Coating Selection
Uncoated, broadband AR, laser AR, UV AR or IR AR coatings can be specified according to the operating wavelength and application environment.
Positive Meniscus Lens Material Comparison
| BK7 | Fused Silica | Infrared Materials | |
|---|---|---|---|
| Optical Properties | Standard optical glass with good transmission across the visible range | Excellent UV transmission and high laser damage threshold | Transmission extends into the infrared spectral range |
| Thermal / Mechanical Notes | Moderate thermal expansion, cost-effective for general use | Low thermal expansion, good thermal shock resistance | Material selected according to target IR band and mechanical requirements |
| Typical Use | General imaging, visible-range optical systems | UV and high-power laser systems | Infrared imaging and thermal sensing systems |
| Selection Note | Preferred for standard visible-range imaging and cost-sensitive applications | Preferred when UV transmission or high laser damage threshold is required | Preferred when operation in the infrared spectral range is required |
Applications of Positive Meniscus Lens
Laser Systems
Focusing and beam shaping optics for laser system design.
Imaging Systems
Precision lenses for general-purpose imaging optics.
Beam Shaping
Positive meniscus lenses for beam expansion and focusing applications.
Machine Vision
Reliable focusing components for machine vision and inspection systems.
Scientific Instruments
Precision optical components for laboratory and research instruments.
Optical Systems Integration
Custom lenses for OEM optical system assemblies.
Positive Meniscus Lens FAQ
What is a positive meniscus lens?
A positive meniscus lens has one convex surface and one concave surface, providing a positive focal length while helping to reduce spherical aberration in combination with other lens elements.
Which materials are available for positive meniscus lenses?
Common materials include BK7, fused silica, optical glass, and infrared materials, selected according to the operating wavelength.
Are positive meniscus lenses suitable for laser applications?
Yes. Depending on material and coating selection, positive meniscus lenses can be used in laser focusing and beam shaping systems.
Can positive meniscus lens coatings be customized?
Yes. Coating options include uncoated, broadband AR, laser AR, UV AR, IR AR and custom coatings according to wavelength range and application.
What information should I provide for a quotation?
Please provide material, diameter, thickness, focal length, coating type, surface quality, surface accuracy, quantity and drawing if available.
Where can I learn more about positive meniscus lenses and coatings?
Additional information on positive meniscus lenses and AR coatings can be found from Edmund Optics.
Related Products for Positive Meniscus Lens
Need Custom Positive Meniscus Lenses?
Send us your drawing, material, dimensions, focal length and coating requirements. Chenyu Optics will review the optical specifications and provide a suitable positive meniscus lens manufacturing suggestion.