Overview – What is an MgF₂ Lens?
Magnesium Fluoride (MgF₂) lenses are widely used optical components known for their broad transmission range, excellent mechanical durability, and low refractive index. With outstanding performance in the ultraviolet (UV), visible, and infrared (IR) spectra, MgF₂ lenses are critical in applications such as spectroscopy, laser systems, aerospace optics, and vacuum UV imaging.
At Bote, we specialize in the design, fabrication, and export of precision MgF₂ lenses tailored to your specific requirements.
Key Features of MgF₂ Lenses from Bote
| Feature | Specification |
|---|---|
| Material | High Purity Magnesium Fluoride (MgF₂) |
| Wavelength Range | 120 nm – 8 µm |
| Refractive Index | ~1.38 at 550 nm |
| Surface Quality | 20-10 or better |
| Surface Accuracy | λ/10 @ 633 nm |
| Diameter Tolerance | ±0.1 mm or per request |
| Coating Options | Uncoated, AR Coated, or Custom |
| Customization | Plano-convex, plano-concave, meniscus, doublet, etc. |
Why Choose Bote for MgF₂ Lenses?
✅ Expert Optical Manufacturing
Our facility in Nanjing, China, is fully equipped with advanced CNC grinding and polishing machines. With decades of cold processing expertise, we produce lenses with high surface accuracy and consistent quality.
✅ Singapore-Based Sales & Export
Our Singapore branch (www.bote.com.sg) allows for efficient communication, legal international export, and faster logistics. We serve customers worldwide in defense, research, aerospace, and laser industries.
✅ Custom Solutions Available
Standard sizes not meeting your need? No problem. We offer full customization including size, shape, coating, and mounting to meet unique optical system requirements.
Applications of MgF₂ Lenses
- UV Spectroscopy Systems
High transmission in deep UV (down to 120 nm) makes MgF₂ ideal for fluorescence analysis and VUV applications. - Infrared Imaging
Excellent IR transmission (up to 8 µm) supports thermal imaging and remote sensing applications. - Laser Beam Focusing
Low refractive index and high laser damage threshold make MgF₂ lenses suitable for laser beam collimation and focusing. - Aerospace and Defense
Resistant to environmental changes, MgF₂ is ideal for space optics and military-grade instruments.
Standard MgF₂ Lens Offerings
| Part No. | Diameter (mm) | Focal Length (mm) | Lens Type | Coating |
|---|---|---|---|---|
| BOTE-MGF25-PCX | 25.4 | 50 | Plano-Convex | Uncoated |
| BOTE-MGF50-PCV | 50.0 | 100 | Plano-Concave | AR Coated 200–1600nm |
| BOTE-MGF30-MN | 30.0 | 60 | Meniscus | Custom Coating |
| BOTE-MGF75-DBL | 75.0 | Custom | Doublet | On Request |
➡️ Custom designs available upon request. Upload your drawing or contact our team for engineering support.
Product Image
Insert high-quality image of MgF₂ lens with clear labeling of features (edge bevel, polished surface, coating)
Why MgF₂ Over Other Materials?
| Property | MgF₂ | Fused Silica | CaF₂ |
|---|---|---|---|
| UV Transparency | ★★★★★ | ★★★★☆ | ★★★★☆ |
| IR Transparency | ★★★★☆ | ★★★☆☆ | ★★★★★ |
| Hardness | ★★★★☆ | ★★★☆☆ | ★★☆☆☆ |
| Refractive Index | Low (~1.38) | Moderate (~1.46) | Low (~1.43) |
MgF₂ is the preferred material for UV and VUV optics where other materials suffer from absorption losses.
FAQs – MgF₂ Lens
Q: Can I order a custom MgF₂ lens with AR coating?
A: Yes. We offer broadband AR coatings or wavelength-specific coatings for UV, visible, and IR ranges. Let us know your operating wavelength.
Q: What’s the lead time for custom lenses?
A: Standard parts: 3–5 working days. Custom parts: 2–4 weeks depending on complexity. Express service available upon request.
Q: Do you offer prototyping or small batches?
A: Absolutely. We support R&D teams, universities, and niche applications with flexible MOQs.
Q: Can you ship worldwide?
A: Yes. All exports are managed via our Singapore office, with international shipping via DHL/FedEx/TNT.
Get a Quote – Contact Us Today
Whether you need standard MgF₂ lenses or a completely custom design, Bote is ready to support your project with reliable service, fast delivery, and precision optics.
📩 Email: [email protected]
🌐 Website: www.bote.com.sg
📞 Phone: +65-8700 3511
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Final Words
MgF₂ lenses are an essential component for demanding optical systems across UV to IR bands. With Bote, you get engineered precision, flexibility, and international reliability. Get in touch today to explore how our MgF₂ optics can empower your applications.
Inspection Equipment List and Metrology of Bote Optics