Silicon Dome
Silicon domes: alongside glass domes, Changchun Longze Precision Optics Co., Ltd. makes silicon domes protecting ground-based radiometers, with broad infrared transmission. Silicon is cost-effective and transmits well over 1.2-6 μm for mid-infrared spectroscopy. The source states that high-purity silicon covers 1-14 μm and can extend beyond 30 μm. High index, hardness, low density, low dispersion, and low cost suit infrared thermometer covers. Designed and manufactured for varied optical systems, these domes combine performance and economy. Smooth transparent surfaces minimize reflection and vector deviation through the hemispherical window. Special coatings provide uniform transmission and consistent scattering. Elastic silicon substrates resist deformation, distortion, and stray light. A unique molding process precisely controls curved surfaces, dimensions, and curvature for accurate collection and focusing, high clarity, and control of intensity and focal region. Display and projection applications use smooth planes to suppress reflections and curved designs to reduce distortion and artifacts.
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