Sapphire Dome Optical High-Strength Optical Protection for Extreme Environments

Short Description:

Sapphire domes are precision-engineered optical components made from single-crystal aluminum oxide (Al₂O₃). Combining exceptional hardness, wide spectral transmission, and outstanding thermal stability, sapphire domes are the ideal solution for protecting sensitive optical systems in harsh environments.

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Features

Detailed Diagram

High-Strength Optical Protection for Extreme Environments

With a hemispherical or custom dome geometry, they provide a wide field of view while maintaining superior optical clarity and structural integrity.

Why Choose Sapphire Dome?

Ultra High Hardness (Mohs 9)
Second only to diamond, ensuring excellent scratch and wear resistance

Wide Optical Transmission (UV–IR)
Effective transmission range from 0.2 μm to 5.5 μm

Extreme Temperature Resistance
Stable performance up to 1600°C

Outstanding Mechanical Strength
Resistant to impact, pressure, and high-speed airflow

Chemical Resistance
Excellent durability in corrosive environments

Key Features

Hemispherical design for wide-angle optical coverage
Optical-grade polishing for high precision imaging
Strong sealing capability for vacuum and high-pressure systems
Fully customizable in size, thickness, curvature, and coatings

Applications

Sapphire domes are widely used in demanding industries where reliability and optical performance are critical:

Infrared & Thermal Imaging Systems
Missile Guidance & Defense Systems
Aerospace Optical Sensors
Underwater Cameras & Deep-Sea Equipment
Laser Systems & High-Temperature Observation Windows

Specifications

Parameter	Value
Material	Single Crystal Sapphire (Al₂O₃)
Diameter	5 mm – 200 mm
Thickness	0.5 mm – 30 mm
Surface Quality	60/40, 40/20 (Optional)
Surface Accuracy	λ/4 or better
Transmission Range	0.2 – 5.5 μm
Shape	Hemisphere / Custom Dome
Finish	Polished / Ground

FAQ

Q1: What is the advantage of sapphire over glass domes?
A: Sapphire offers significantly higher hardness, better thermal resistance, and broader optical transmission, making it ideal for extreme environments.

Q2: Can you customize dome dimensions?
A: Yes, all parameters including diameter, thickness, and curvature can be customized.

Q3: Is sapphire suitable for infrared systems?
A: Yes, sapphire performs well in near-IR and mid-IR applications.

Q4: Do you provide coating services?
A: Yes, including AR coatings, IR coatings, and protective layers.

About Us

XKH specializes in high-tech development, production, and sales of special optical glass and new crystal materials. Our products serve optical electronics, consumer electronics, and the military. We offer Sapphire optical components, mobile phone lens covers, Ceramics, LT, Silicon Carbide SIC, Quartz, and semiconductor crystal wafers. With skilled expertise and cutting-edge equipment, we excel in non-standard product processing, aiming to be a leading optoelectronic materials high-tech enterprise.