An BK7 Dome Lens is a lens element with two concentric spherical surfaces. It is usually made of optical materials such as K9 glass and fused quartz, ZnS ZnSe,its parallel tolerance can be controlled within 2 μm. Common shapes include hemispherical or super-hemispherical structures. BK7 K9 Glass Dome Lens is widely applied in fields such as detectors, optical sensors, underwater photography, and security monitoring. Its main functions include protecting internal optical components, providing large-angle incident light windows, and optimizing the performance of light path transmission.
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Where the dome lens used for?
BK7 Dome Lens – Custom Optical Glass Dome Window for Imaging, Sensors, and Underwater Applications
From the perspective of application scenarios, optical glass dome lens can be classified into the following categories:
Industrial and scientific research: Require high precision and high light transmittance. They are commonly used in sensors, detectors, scientific research equipment, etc. High requirements are placed on the material and processing techniques.
Security and photography: They should have excellent optical performance and protective properties, suitable for underwater photography, surveillance cameras, etc. Commonly, K9 quartz or fused quartz materials are selected.
Special-purpose dome: Such as the covers for unmanned aircraft and missiles, which may need to meet special requirements like high-temperature resistance and impact resistance. Some of them may use high-end materials like sapphire.
Specifications
| Material | H-K9L, JGS1, Sapphire |
| Diameters Available | 8-400mm |
| Diameter Tolerance | +0.00/-0.05mm or customer design |
| Surface Quality | 60-40 |
| Surface Irregularity | λ/4 @632.8nm or customer design |
| Thickness tolerance | +/-0.05mm |
| Clear Aperture | >90% of Diameter |
| Chamfer | 0.05-0.5mmx45degree, according to customer's needs. |
| Coating | BBAR 400-700nm |
Custom BK7 Optical Dome Lenses for Visible Imaging Systems
Custom BK7 optical dome lenses from Sunday Optics are available in diameters ranging from 8mm to 400mm, with precise thicknesses, surface qualities up to 60-40 scratch-dig, and surface accuracy of λ/4. Our lenses can be delivered with various coatings, including AR coated dome lenses or BBAR coated BK7 dome lenses, to maximize transmission across 400–700nm for visible imaging systems. Whether your project involves surveillance cameras, underwater ROV imaging, marine observation, optical sensors, detectors, scientific instruments, or UAV optical systems, our optical dome windows provide reliable protection and high optical clarity.
These optical glass dome lenses are suitable for a variety of applications where performance and durability are critical. Dome lenses for underwater cameras offer resistance to pressure and environmental factors, making them perfect for subsea imaging systems or harsh marine environments. Dome windows for optical sensors and detectors ensure accurate signal acquisition while safeguarding sensitive components. For security and surveillance applications, our BK7 dome lenses reduce image distortion and maintain consistent clarity, even in demanding operational conditions.
As a leading custom BK7 dome lens manufacturer, Sunday Optics can produce lenses to your specifications, including diameter, thickness, radius, surface quality, clear aperture, chamfer, and coating requirements. Our precision optical dome lenses can also be customized for OEM projects, large diameter applications, or specific field-of-view requirements. We support both small-batch orders and large-scale production, ensuring consistent quality and timely delivery for industrial, scientific, and marine applications.
Our BK7 dome windows are engineered to meet stringent optical and mechanical standards. The hemispherical or hyper-hemispherical designs minimize aberrations and maximize field-of-view for imaging systems. High-transmission glass combined with anti-reflective coatings provides superior image clarity and signal fidelity for optical instruments. Whether you require protective optical dome lenses for visible light cameras, infrared imaging, or scientific detectors, our lenses combine precision, reliability, and durability in one product.
To request a quote for custom BK7 dome lenses or optical dome windows, please provide details including material, outer diameter, thickness, radius, surface quality, coating requirements, and quantity. Our knowledgeable team is ready to provide technical consultation and help select the best solution for your imaging or sensing application. As a trusted BK7 dome lens supplier, we prioritize high-quality manufacturing, fast lead times, and responsive customer support.
Explore our range of stock and custom solutions to find the perfect optical dome lens for your application.
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