Hemisphere Dome

Description

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.
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.