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E-mail
taomsun@vip.163.com
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Phone
13862625813
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Address
Building A, Renheng PARK, 1211 Xinghu Street, Suzhou Industrial Park
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SUZHOU TAOMSUN SCIENTIFIC INSTRUMENTS CO.,LTD
TAOMSUN Sapphire Convex / Hemisphere Lenses – Optical Grade Sapphire Single Crystal | 0.17-5.5μm High Transmission | Laser Grade Customizable
NegotiableUpdate on 08/26
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Overview
TAOMSUN sapphire convex / hemisphere lenses are precision-machined from optical grade sapphire single crystal (α-Al₂O₃). With a Mohs hardness of 9 and a transmission range covering 0.17-5.5μm (UV to mid-infrared), sapphire offers extremely high surface hardness, chemical corrosion resistance, high temperature resistance and excellent thermal conductivity – the ideal choice for optical systems in demanding environments. Available in plano-convex, plano-concave, biconvex, meniscus and hemispherical forms; size, focal length and coating can be customized per drawing. Widely used in laser focusing, fiber coupling, imaging systems, endoscopes, sensors and laser aesthetic equipment.
Product Details
TAOMSUNPrecision Optical Components
🌏 Made in China · Korea Sales / Technical Support · OEM / ODM Available
TAOMSUN Sapphire Convex & Hemisphere Lenses – Optical-Grade Sapphire Single Crystal, 0.17–5.5 μm High Transmission, Custom Laser-Grade Optics
Brand: TAOMSUN ｜ Origin: China ｜ Korea Sales / Technical Support: METICULAB (Korea) ｜ ISO 9001 · Precision Optical Manufacturing
TAOMSUN Sapphire Convex & Hemisphere Lenses are precision-machined from optical-grade sapphire single crystal (α-Al₂O₃), with a hardness of 9 on the Mohs scale – second only to diamond – and a transmission range covering 0.17–5.5 μm (from UV to mid-infrared). Sapphire offers extremely high surface hardness, chemical corrosion resistance, high-temperature tolerance and excellent thermal conductivity, making it an ideal choice for optical systems in demanding environments. Lens types include plano-convex, plano-concave, double-convex, meniscus and hemisphere forms; dimensions, focal length and coatings can all be customized to your drawings.
🔍 Core features: 0.17–5.5 μm wide-band transmission – usable from UV to mid-infrared without coating; hardness second only to diamond for scratch and wear resistance; thermal conductivity as high as 27.21 W/(m·K), ideal for high heat-load laser applications.
📷 Product Gallery
Product overview
Lens types
Coating options
Machined lenses
Application scenarios
📋 Technical Specifications
| Material | Optical-grade sapphire single crystal (α-Al₂O₃) |
| Hardness | Mohs 9 (Knoop 1900–2000 kg/mm²) |
| Transmission Range | 0.17 – 5.5 μm (UV to mid-infrared) |
| Refractive Index (nd) | 1.77 (@1.06 μm) |
| Density | 3.97 g/cm³ |
| Thermal Conductivity | 27.21 W/(m·K) |
| Melting Point | 2040℃ |
| Young's Modulus | 335–435 GPa |
| Diameter / Size | Φ0.3 – 200 mm (customizable) |
| Thickness Tolerance | ±0.2 mm |
| Surface Quality | 80/50, 60/40, 40/20, 20/10 S/D optional |
| Surface Roughness | Rz 0.05–0.2 μm |
| Surface Figure | λ/4 @ 633 nm |
| Clear Aperture | >90% |
| Decentration | <3′ |
| Coating | AR anti-reflection, beam-splitting or metal coatings available |
| Lens Types | Plano-convex, plano-concave, double-convex, meniscus, hemisphere |
| Origin | China |
| Korea Sales / Technical Support | METICULAB (Korea) |
📊 Material Properties
| Hardness | Mohs 9 (Knoop 1900–2000 kg/mm²) |
| Density | 3.97 g/cm³ |
| Refractive Index (nd) | 1.77 (@1.06 μm) |
| Transmission Range | 0.17–5.5 μm |
| Thermal Expansion Coefficient | 5.6×10⁻⁶/K (C-axis) |
| Thermal Conductivity | 27.21 W/(m·K) |
| Melting Point | 2040℃ |
| Young's Modulus | 335–435 GPa |
⭐ Key Advantages
✅ Wide-band transmission – 0.17–5.5 μm, UV to mid-infrared, usable without coating
✅ Ultra-high hardness – Mohs 9, second only to diamond, scratch- and wear-resistant
✅ Chemical corrosion resistance – immune to acid/alkali attack, ideal for harsh environments
✅ High thermal conductivity – 27.21 W/(m·K), suited for laser and other high heat-load applications
✅ High-temperature tolerance – melting point 2040℃, usable above 1000℃
✅ High refractive index – nd = 1.77, excellent optical performance
✅ Multiple lens types – plano-convex / double-convex / meniscus / hemisphere cover various applications
✅ Full-parameter customization – dimensions, focal length and coatings per your drawings
🔬 Applications
Laser technologyFiber-optic communicationImaging systemsEndoscopyOptical sensorsLaser aesthetic devicesResearch instrumentsHigh-energy physics experiments
📦 Customization Service
Custom machining per customer drawings or specifications is supported:
- Size customization: diameter 0.3–200 mm; special-shaped lenses available
- Type customization: plano-convex, plano-concave, double-convex, meniscus or hemisphere
- Focal length customization: focal length designed to your application needs
- Coating customization: AR anti-reflection, beam-splitting or metal coatings available
- Small-batch trial orders: 5–10 pieces for trial validation
❓ Frequently Asked Questions (FAQ)
Q: What is the difference between sapphire lenses and ordinary optical glass lenses?
A: Sapphire lenses have a Mohs hardness of 9 (second only to diamond), resist scratching, chemical corrosion and high temperatures (melting point 2040℃), and offer excellent thermal conductivity. Ordinary optical glass is softer, easier to scratch and conducts heat poorly. Sapphire suits high-end applications such as laser systems and harsh environments; ordinary glass suits conventional optical systems.
Q: What is the transmission range of sapphire lenses?
A: Uncoated sapphire lenses transmit from 0.17–5.5 μm, covering the UV to mid-infrared bands. Coatings can be applied to optimize transmission for specific wavelength bands.
Q: Which lens types are available?
A: Plano-convex, plano-concave, double-convex, meniscus and hemisphere forms are available. Plano-convex lenses are used for focusing/collimating, double-convex for imaging systems, and hemisphere for fiber coupling and endoscopy.
Q: Can non-standard sizes and coatings be customized?
A: Yes. TAOMSUN supports diameter customization from 0.3–200 mm, as well as AR anti-reflection, beam-splitting and metal coatings. Please provide CAD drawings or specification requirements.
Q: Are sapphire lenses suitable for high-power laser applications?
A: Absolutely. Sapphire offers thermal conductivity as high as 27.21 W/(m·K) and a melting point of 2040℃, delivering excellent thermal stability – the ideal choice for high-power laser systems.
🏭 About TAOMSUN
TAOMSUN is a professional supplier with deep expertise in precision optical components and hard-material machining, focused on the development and supply of sapphire optical components, precision bearings and high-performance mechanical parts. The company is certified under the ISO 9001 quality management system, and its products are widely used in high-end fields such as laser technology, fiber-optic communication, instrumentation and aerospace. The core team brings decades of precision-machining industry experience; backed by a mature supply chain system and strict quality control, every product delivers excellent quality and stable delivery. 🌏 Overseas sales and technical support is provided by METICULAB™ (Korea).
TAOMSUN Precision Optical Components | 📧 Sales Inquiry taomsun@vip.163.com +86-13862625813 | 🌏 Overseas Sales / Technical Support METICULAB™ (Korea) choikyuc@gmail.com +82-10-3988-4813 💬 WhatsApp / KakaoTalk |
TAOMSUN products are manufactured under the ISO 9001 quality management system. Specifications are typical values and may vary with custom configurations. For OEM/ODM customization, non-standard sizes or special coatings, please contact our sales team. International customers may contact METICULAB (Korea) for Korean/English technical consultation.
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