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Hemispherical Dome
Optical Windows

Hemispherical Dome

Supplier
Ecoptik
Category
Optical Windows
Origin
China

This is a precisely hemispherical protective window made of optical-grade glass. It's not just an ordinary glass dome; it's specifically designed for optical applications and needs to meet stringent optical performance requirements.

Specification Snapshot
Thickness
0.5mm-30mm
Thickness [In general]
±0.1mm
Thickness [Best]
±0.02mm
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Overview

This is a precisely hemispherical protective window made of optical-grade glass. It's not just an ordinary glass dome; it's specifically designed for optical applications and needs to meet stringent optical performance requirements.

Specifications

ParameterValue
Substrate materialK9 (CDGM), Sapphire, Si, MgF2, N-BK7, N-BK10, Fused silica (JGS1), Corining7980, Borofloat 33, etc.
Surface quality60/40, 40/20, 20/10, 10/5
Dimension6mm-350mm
Surface fringe10(5)-3(0.5)
Thickness0.5mm-30mm
Coating [upon customer's request]Anti-reflection (AR) Coating or upon customer's request
Thickness [In general]±0.1mm
Thickness [Best]±0.02mm

Applications

Underwater Photography and Detection：Observation windows for underwater cameras, ROVs (Remotely Operated Vehicles), and AUVs (Autonomous Underwater Vehicles). The hemispherical design provides a near 180° wide field of view while withstanding water pressure. Infrared Systems and Thermal Imaging：Fairings for missile seekers, infrared search and track systems, and thermal imagers. Commonly used infrared materials such as zinc sulfide (ZnS), zinc selenide (ZnSe), and magnesium fluoride (MgF2) ensure high infrared light transmittance. Laser Systems：Output or protective windows for high-power lasers. Must be able to withstand high power density and have extremely low absorptivity to prevent thermal lensing effects. Aerospace：Optoelectronic pods for aircraft and UAVs. Protective domes for satellite star sensors or Earth sensors. Industrial and Scientific Instruments：Optical measurement equipment and sensors for special environments. Monitoring systems requiring wide-angle fields of view.

Key Features

Materials：Optical glass such as K9, fused silica, sapphire, MgF2, silicon (Si), etc. These materials possess high transmittance, low absorption, low scattering, uniform refractive index, and specific dispersion characteristics. Shape：Precisely hemispherical. The machining precision of the center and radius of curvature of the sphere is extremely high. Surface Quality：The surface is precision polished to an optical grade of 10-5 to ensure image quality and reduce scattering and aberrations. Coating：An AR coating is typically applied to the concave surface to maximize the transmittance of specific wavelengths of light (e.g. visible light) and reduce reflection loss.

Datasheet

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Supplier Information

Ec
Ecoptik
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ECOPTIK has been researching optical component fabrication technology for 15 years. We manufacture precision optics such as dome, spherical lens, micro-optical component, cylindrical mirror, filter, prism, and window. We offer glass materials from Schott, CDGM, Corning, and Sapphire, CaF2, MgF2, Fused Silica, Si, etc. We offer lens assembly service. We possess ZYGO laser interferometers, ZEISS CMM Spectrum, and Agilent Cary 7000 UMS for testing and providing product reports.

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