Sapphire Custom-Shaped Sapphire View Windows Optical Glass high hardness

Sapphire Custom-Shaped Windows – Optical Glass, High Hardness
 

In the realm of high-performance optical components, sapphire custom-shaped windows stand as the pinnacle of material engineering. Crafted from 99.999% pure single-crystal aluminum oxide (Al₂O₃), these precision optical elements combine unmatched hardness (Mohs 9) with exceptional optical clarity to meet the most demanding industrial, scientific, and defense applications. Unlike conventional optical glass, sapphire windows offer 3-5x greater scratch resistance, superior thermal stability (melting point 2,050°C), and outstanding chemical inertness – making them indispensable where reliability under extreme conditions is non-negotiable.

Our proprietary diamond-tool CNC machining and atomic-layer polishing processes enable the production of complex custom geometries – from ultra-thin disks to intricate polygonal shapes – with sub-micron tolerances and surface roughness <5Å. Whether for laser systems operating at megawatt power levels or spacecraft viewports facing micrometeoroid impacts, these sapphire windows deliver uncompromising performance across the electromagnetic spectrum (UV to mid-IR).
 
 

Key Features of Sapphire Optical Window

 
1. Sapphire Window's Extreme Durability

• Mohs 9 hardness – Only diamond can scratch it
• Flexural strength >800 MPa – Withstands high-pressure differentials
• Fracture toughness 2.5 MPa·m½ – 3x more impact-resistant than fused silica

 
2. Sapphire Window's Optical Excellence

• Broadband transmission (85%+ from 250nm to 5,000nm)
• Low autofluorescence – Critical for Raman spectroscopy
• Refractive index homogeneity <5 × 10⁻⁶ across entire surface

 
3. Sapphire Window's Precision Engineering

• Dimensional tolerances to ±0.001mm
• Surface flatness λ/10 at 632.8nm
• Parallelism <1 arc minute

 
4. Sapphire Window's Environmental Resistance

• Thermal shock resistant (ΔT >1,000°C)
• Radiation hard (withstands >10⁶ Gy)
• Impervious to all acids except hydrofluoric

 
5. Sapphire Window's Customization Capabilities

• Complex geometries: Hexagons, D-shapes, trapezoids, free-form
• Edge treatments: Beveled, rounded, or precision-ground
• Coatings: AR coating,High Transmission Coatings,Reflective Coatings,Hard Coating,Anti-Soiling Coatings,Anti-Glare Coatings,Filter Coatings

   

Specifications

Factory Equipments