Optical Dome Windows
Precision-engineered hemispherical optics for protection and performance.
Optical dome windows are used to protect imaging and sensing systems while maintaining optical performance and a wide field of view.
They are commonly used in subsea camera systems, aerospace sensors, thermal imaging equipment and harsh environment applications where pressure resistance and environmental protection are required.
Global Optics supplies custom optical dome windows manufactured to customer drawings and specifications, including hemispherical and hyperhemispherical geometries in materials such as sapphire, BK7 and fused silica.
What We Need to Provide a Quotation
Providing the following information allows us to quote accurately and avoid delays:
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Material (e.g. BK7)
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Diameter / size
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Thickness
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Quantity
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Drawing or specification
Materials for Optical Dome Windows
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Sapphire — high strength and scratch resistance for subsea and harsh environments
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BK7 — cost-effective solution for visible imaging systems
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Fused Silica — UV and thermally stable applications
specialist IR dome materials available on request
Applications
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ROV camera systems
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Subsea imaging
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Aerospace optics
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Thermal imaging systems
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Harsh environment cameras
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Defence and scientific systems
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This massively improves topical relevance.
Dome Geometries
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Hemispherical domes
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Hyperhemispherical domes
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Custom dome profiles

Pressure & Environmental Considerations
Optical dome windows used in subsea, marine and harsh environment applications require careful consideration of both optical and mechanical performance.
Important factors may include:
• External pressure or operating depth
• Dome geometry and wall thickness
• Mounting and sealing arrangement
• Scratch and abrasion resistance
• Coating durability
• Temperature and chemical exposure
Materials such as sapphire are commonly selected for demanding environments due to their high hardness and strength, while BK7, fused silica and infrared materials may be suitable depending on the application requirements.
For flat optical windows used in pressure housings, chambers and subsea systems, we also provide a Circular Pressure Window Calculator for initial thickness estimation.
Manufacturing Capabilities
• Hemispherical dome windows
• Hyperhemispherical dome windows
• Custom dome geometries
• Ground or polished finishes
• Visible and infrared materials
• AR and protective coatings
• Prototype through production quantities



