Hemisphere Dome
This is a precisely hemispherical protective window made of optical-grade glass. It’s not just an ordinary glass dome;
This product is a precision-engineered hemispherical protective window made from optical-grade materials. It is not a standard glass dome, but a high-precision optical component designed specifically for imaging systems, sensors, and other optical applications that require strict control of transmission, distortion, and surface accuracy.
Material Options
The dome is manufactured using a range of optical-grade substrates to meet different wavelength and environmental requirements, including:
K9 (CDGM), N-BK7, N-BK10, Corning 7980, JGS1, Borofloat 33, Sapphire, Silicon (Si), MgFâ‚‚, ZnSe, ZnS, and other equivalent optical materials.
These materials are selected for their excellent optical transmission, low absorption, minimal scattering, stable refractive index, and controlled dispersion characteristics.
Structural Characteristics
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Geometry: Precision hemispherical design
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Manufacturing accuracy: Extremely tight control on center alignment and radius of curvature
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Application focus: Optical systems requiring uniform light transmission and minimal optical distortion
The hemispherical structure is optimized to provide stable optical performance across wide-angle viewing systems and protective sensor housings.
Surface Quality
The surface is polished to optical-grade standards to ensure high imaging performance and reduced optical interference.
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Surface quality options: 60/40, 40/20, 20/10, 10/5
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Surface fringe accuracy: 10(5) to 3(0.5)
High-grade polishing helps minimize scattering, aberrations, and signal loss in precision optical systems.
Coating Options
An anti-reflection (AR) coating is typically applied to the concave surface to improve optical transmission efficiency.
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Enhanced transmittance for specific wavelength ranges (e.g., visible light or IR bands)
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Reduced surface reflection losses
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Custom coating solutions available based on application requirements
Dimensional Specifications
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Diameter range: 6 mm – 350 mm
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Thickness range: 0.5 mm – 30 mm
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Thickness tolerance:
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Standard: ±0.1 mm
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High precision: up to ±0.02 mm
Manufacturing Capability
ECOPTIK maintains an annual production capacity of more than 300,000 pieces, supporting both standard specifications and customized optical dome requirements for industrial and scientific applications.
Application Areas
This hemispherical optical window is widely used in:
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Optical imaging systems
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Aerospace and defense sensor protection
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Underwater camera housings
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Laser and detection systems
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Scientific and laboratory optical equipment
It provides reliable environmental protection while maintaining high optical performance, making it suitable for demanding precision optical applications.
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