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High-Precision Plano-Concave Lens for Optical Systems

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0102030405

High-Precision Plano-Concave Lenses from China Suppliers & Factory for Optical Systems and Beam Expansion

ALHAZEN's high-precision plano-concave lenses are expertly designed with a flat surface and a concave surface, offering a negative focal length that facilitates beam divergence, light projection, and extended focal lengths. As a leading manufacturer in China, our factory supplies plano-concave lenses made from high-quality N-BK7, fused silica, and custom materials. These lenses are ideal for laser beam expansion, imaging correction, and various optical instruments. Trust us as your reliable suppliers for cutting-edge optical solutions!

Product Detail

Product Description

Core Functions

Beam Control: Negative focal length diverges collimated light for laser beam expansion (divergence 0.5–5°) or aberration compensation.

Focal Length Adjustment: Combined with plano-convex lenses to extend focal length for long-range imaging or projection.

Technical Specifications

Materials:
- N-BK7 Glass: High transmission in visible range (400–700nm), cost-effective;
- Fused Silica: Broadband UV-NIR (190nm–2.1μm), low thermal expansion, laser damage-resistant;
- Custom Materials: Infrared substrates (Ge, ZnSe), fluorides (CaF₂, MgF₂), etc.

Precision:
Surface accuracy λ/4–λ/10 (@632.8nm), diameter tolerance ±0.05mm, center thickness ±0.1mm; Clear aperture >90%, scratch/dig 20/10 (upgradable to 10/5).

Coatings:
- Single/Multi-layer AR: Covers visible, NIR, or laser wavelengths (e.g., 1064nm, 10.6μm);
- High-LIDT Coatings: Compatible with high-power lasers (>500W).

Applications

Laser Processing: Beam divergence control before fiber coupling to reduce energy density;

Optical Imaging: Spherical aberration correction or field curvature compensation in telescopes/microscopes;

Scientific Instruments: Focal length adjustment in interferometers and spectrometers.

Customization

- Aspheric concave design: Minimizes spherical aberration for uniform beam divergence;
- Non-standard dimensions: Diameter 1–300mm, radius of curvature 5–1000mm;
- Rapid prototyping: Standard materials in 5 business days, custom materials <3 weeks.

Differentiation Highlights

● Material Versatility: Compatible with UV, visible, IR, and THz wavelengths for multi-scenario applications.

● High-Power Compatibility: Fused silica with hard coatings supports CO₂ lasers (10.6μm) and YAG lasers (1064nm) at high energy levels.

Custom & OEM Process

Materials capabilities

Coating capabilities

Advanced Equipment

Custom Sizes and Shapes

Quality Assurancetesting

Experienced Team

Company introduction

freight

payment

Q&A

Q1: Are you a factory?

Yes, we are a professional manufacturer of optical components, we have more than 20 years experience in optical cold working.

Q2: What is the MOQ of your products?

No MOQ for customer if our product is in stock, or 1-10pcs.

Q3: Can I custom the products based on my requirement?

Yes, we can custom the material, specifications and optical coating for your optical components as your requirement.

Q4: How can I get sample from you?

Just send us your requirements, then we will send samples accordingly.

Q5: How many days will samples be finished? How about mass products?

Generally, we need 1-2 days to finish the sample production. As for the mass products, it depends on your order quantity.

Q6: What's the delivery time?

(1) For inventory: the delivery time is 1-3 working days.
(2) For customized products: the delivery time is 7 to 25 working days According to the quantity.