Name: Hemisphere Dome
Rating: 4.5 (100 reviews)

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.

Drawing

Specification of Hemisphere Dome

Substrate material	K9 (CDGM), Sapphire, Si, MgF2, N-BK7, N-BK10, Fused silica (JGS1), Corining7980, Borofloat 33, etc.	Surface quality	60/40, 40/20, 20/10, 10/5
Dimension	6mm-350mm	Surface fringe	10(5)-3(0.5)
Thickness	0.5mm-30mm	Coating	Anti-reflection (AR) Coating or upon customer's request
Thickness	In general ±0.1mm, Best ±0.02mm	ECOPTIK annual production capacity	over 300,000 pcs

Typical Application Areas

Underwater Imaging Platforms

Ecoptik domes serve Underwater Cameras and subsea vehicles, including inspection ROV, surveillance & survey ROV, autonomous surface vessel, MIL-Grade Remotely Operated Vehicle (ROV), Unmanned Surface Vehicle (USV), ROV & AUV, remotely operated underwater vehicle, AUV, UUV and ROV platforms. Sapphire, N-BK7 and high-strength glass support pressure resistance, wide field of view and seawater durability, with custom flange geometry and AR/hydrophobic coatings.
Solar Radiation Instruments

Ecoptik hemisphere domes serve as the optical front-end for pyranometer and solar radiation sensor applications, including Weather Monitoring Station, Albedometer, scintillometer, solar path finder, shadow ring, spectroradiometer, sun tracker and UV sensor deployments. High transmittance and 180° field of view support stable irradiance measurement; fused silica, N-BK7 and sapphire options are available with custom radius, thickness and AR coating.
Astronomical Observation Cameras

Ecoptik hemisphere domes serve as the astronomical observation camera protective dome for all-sky camera, telescope camera window, observatory camera dome, and CCD/CMOS camera dome applications. Fused silica and N-BK7 options provide high transmittance and low scattering across visible and NIR bands; sapphire is available for harsh outdoor observatory sites. Custom radius, thickness, flange geometry and AR coatings support weather sealing, dew resistance and stable image quality.