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Custom Large-Diameter Sapphire Dome, Hardened Spherical Optical Dome Cover For Missile Guidance Systems

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Categories	Sapphire Optical Dome
Brand	FELIX GLASS optical glass Manufacturing base
Substrate Material	Single crystal high hardness sapphire (Al₂O₃), chemical tempered hardening treatment
Core Application	Large-size custom dome for missile guidance, aerospace high-impact harsh environment
FOB port	SHENGZHEN SHANGHAI GUANGZHOU
Terms of Payment	L/C, D/A, D/P, Western Union
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Custom Large-Diameter Tempered Single-Crystal Sapphire Dome, Missile Hardened Optical Dome Cover

Felix Glass custom large-size sapphire dome is manufactured from high-purity single crystal alumina sapphire, with special chemical tempering hardening treatment to boost surface mechanical strength, designed for missile guidance, aerospace airborne and rocket harsh operating environments.

The hemispherical dome structure integrates ultra-high-strength protective shell and optical lens, possessing far superior hardness, impact resistance, high-temperature stability and corrosion resistance compared to ZnS, ZnSe, fused silica and optical glass domes. Sapphire transmits 150nm–5.5μm UV, visible and mid-infrared spectrum, fully matching missile dual-band infrared guidance optical paths.

Custom multi-band AR anti-reflection coating and anti-ablation DLC hard coating can be deposited on inner and outer surfaces to improve infrared transmittance and resist high-speed airflow friction ablation during missile flight. We support non-standard large-diameter customization, special curvature and ultra-thick wall thickness design to meet aerospace high impact, high temperature and high pressure working conditions.

Core Optical Specifications

- Raw Material: Single crystal sapphire (Al₂O₃), chemical tempered hardened surface

- Dome Shape: Full hemispherical single-piece spherical dome, large-size custom available

- Transmission Band: 150nm – 5500nm deep UV, visible & mid-wave infrared

- Hardness Feature: Mohs 9 ultra-high hardness, scratch, impact and abrasion resistant

- Stable Operating Temperature: -196℃ ~ +1600℃ continuous stable performance

- Optional Coating: Custom AR coating + anti-ablation DLC composite hard coating

- Surface Quality: Aerospace military grade 20-10 scratch-dig precision standard

- Custom Parameter: Custom large dome diameter, wall thickness, inner & outer curvature radii

Core Product Advantages

1. Mohs 9 sapphire base + tempering hardening treatment, top-level impact & scratch resistance for missile high-speed flight anti-ablation demand

2. Ultra-wide 150–5500nm UV-mid IR transmission, compatible with dual-band infrared missile guidance detection

3. Extreme temperature resistance from -196℃ cryogenic to 1600℃ high temperature, no deformation under aerospace drastic temperature fluctuation

4. Corrosion & erosion resistant, withstand high-speed airflow, dust and rain harsh flight environment

5. Support non-standard large-diameter custom design, adjustable wall thickness and curvature to match missile guidance head structure

6. Military aerospace grade ultra-precision polishing, low optical distortion, guarantee long-range infrared guidance imaging accuracy

Typical Application Scenarios

- Missile infrared guidance system hemispherical protective dome cover

- Aerospace rocket, airborne photoelectric reconnaissance large optical pods

- High-speed aircraft long-range infrared tracking detection equipment

- Military vehicle all-weather multi-spectral night vision optical systems

- Space satellite high-temperature remote sensing infrared detection assemblies

- Extreme environment industrial high-impact optical monitoring equipment

OEM Manufacturing Capability

We provide full one-stop sapphire dome processing including large single-crystal sapphire blank hot forming, ultra-precision hemispherical CNC polishing, chemical tempering hardening, multi-band AR+DLC anti-ablation coating, strict impact resistance, high temperature and spectral transmittance testing.

Custom non-standard large-size prototype development, small-batch trial production and military mass supply are supported. Every tempered sapphire dome undergoes full aerospace-grade inspection before delivery.

Standard FAQ

1. Why use tempered sapphire dome instead of ZnS/ZnS/quartz dome for missile equipment?

Sapphire has Mohs 9 ultra-high hardness, strong impact and anti-ablation capacity, withstands missile high-speed airflow friction; ZnS/ZnSe are soft and easy to ablate, quartz cannot endure ultra-high flight temperature.

2. What extreme temperature can this tempered sapphire dome bear?

Stable optical performance from -196℃ cryogenic to 1600℃ continuous high temperature, adapt to aerospace flight rapid temperature change.

3. Can I customize extra-large diameter and special curvature sapphire dome for missile guidance heads?

Yes, we support fully custom dome diameter, wall thickness, curvature radii and anti-ablation composite coating according to military optical system drawings.

4. What aerospace equipment matches this large-size hardened sapphire dome?

It fits missile infrared guidance heads, airborne photoelectric pods, high-speed aircraft tracking systems and satellite remote sensing optical assemblies.

5. Do you provide military-grade inspection reports for mass order sapphire domes?

We supply complete aerospace/military test certificates including impact resistance, high temperature stability, spectral transmittance and surface precision inspection data for every batch.

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What is your MOQ for custom optical glass and display glass parts?: Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.

Can I get free glass samples for testing before bulk order?: Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.

What is the production lead time for custom optical glass components?: What is the production lead time for custom optical glass components?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?: All FELIX GLASS precision optical glass components comply with ISO quality system standards, as well as CE and RoHS requirements. We provide comprehensive test reports, material certificates, and inspection documentation for customer review. Please feel free to request full certification details and a formal quotation today.

Do you offer one-stop custom optical glass processing services?: Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.