Custom Sapphire Dome for Optical Applications – High-Precision, Durable & Clear

Product Overview

Custom sapphire domes are precision-engineered, dome-shaped optical components made from high-quality synthetic sapphire (Al₂O₃), known for its exceptional hardness, optical transparency, and chemical stability. These domes are widely used in high-performance and demanding optical applications, including aerospace, defense, underwater exploration, and scientific instrumentation.

Sapphire combines extreme hardness, excellent thermal conductivity, a wide optical transmission range from ultraviolet (UV) to infrared (IR), and outstanding resistance to abrasion, corrosion, and thermal shock. This makes sapphire domes the ideal solution for protecting sensitive optical sensors while maintaining superior imaging performance in harsh environments.

The term “conformal” refers to the dome’s custom-designed shape, which can precisely match the contour of the equipment it is integrated with. This reduces drag and improves aerodynamic efficiency in high-speed applications. Conformal sapphire domes are commonly used as infrared (IR) windows in missile guidance systems, protective covers for high-precision sensors, and pressure-resistant housings for underwater cameras.

Custom sapphire domes are available in a variety of shapes, including hemispherical, hyper-hemispherical, aspheric, kerf, U-shaped, and other special forms. They can be manufactured with diameters up to 390 mm, precise surface tolerances, and superior optical quality, ensuring reliable performance in extreme conditions, from high-speed aerospace missions to deep-sea exploration.

By combining exceptional optical clarity, mechanical strength, and durability, sapphire domes provide long-lasting, reliable performance in the most demanding environments, making them the preferred choice for industries that require high-precision, high-reliability optical components.

Features & Benefits

• High Optical Transparency: 0.3 μm (UV) to 5 μm (IR)

• Exceptional Hardness: 9 Mohs, scratch-resistant

• Thermal Resistance: Up to 2030°C, excellent thermal conductivity

• Mechanical Strength: High Young’s modulus, tensile, and flexural strength

• Chemical Stability: Corrosion-resistant and durable under extreme conditions

• Precision Manufacturing: Centering accuracy < 0.01 mm, surface roughness < 10 Å, surface quality up to 20/10

• Custom Shapes Available: Hemispherical, hyper-hemispherical, aspheric, kerf, U-shape, and special-shaped domes

Specifications

Applications

• Military & Aerospace: Missile guidance system IR windows, sensor protection, radomes

• Underwater Optics: Camera enclosures, deep-sea observation domes

• Precision Instruments: Scientific sensors, metrology, high-tech optical devices

• Harsh Environments: High-speed, high-pressure, and high-temperature applications

Sapphire domes provide robust protection for sensitive optical components without compromising field of view or optical performance. Compared to glass, sapphire offers superior mechanical strength, scratch resistance, and thermal stability.

Custom Manufacturing

We specialize in custom sapphire domes with decades of experience:

1. Tell Us Your Requirements: Send 2D/3D drawings, photos, or detailed dimensions.

2. Receive Solution & Quote: We provide the best solution and quotation within 24 hours.

3. Mass Production & Shipping: After approval and deposit, we produce and ship your sapphire domes.

We can produce sapphire domes in various shapes, including:

• Hemisphere & Hyper-Hemisphere

• Aspheric & Kerf

• U-Shape & Conformal

• Special Custom Shapes

Diameters can reach up to Φ390 mm, with tight tolerances and high surface quality for precision applications.

Why Choose Sapphire Domes

• Exceptional strength and durability

• Superior optical clarity from UV to IR

• Resistant to thermal shock, high pressure, and abrasion

• Ideal for aerospace, defense, underwater, and precision optics

• Fully customizable to meet unique application needs

FAQ

Q1: What is the maximum size for a custom sapphire dome?

A1: We can manufacture sapphire domes up to a diameter of 400 mm, depending on shape and wall thickness requirements.

Q2: Can you produce sapphire domes with special coatings?

A2: Yes, we offer anti-reflection (AR) coatings and other custom coatings to enhance optical performance for specific applications.

Q3: What shapes of sapphire domes can be customized?

A3: We can produce hemispherical, hyper-hemispherical, aspheric, kerf, U-shape, conformal, and other special-shaped sapphire domes according to your design requirements.

Q4: How precise are the dimensions and surface quality?

A4: Our sapphire domes can achieve a centering accuracy of less than 0.01 mm, surface roughness below 10 Å, and surface quality up to 20/10, ensuring high precision for demanding optical applications.

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