The sapphire super-hemispherical dome represents a key advancement in LUMINA’s precision optical manufacturing capabilities. Unlike standard hemispherical shapes, the super-hemisphere design allows the dome height to exceed 55% of its radius, providing greater optical collection efficiency and wider fields of view for advanced imaging systems.
Sapphire offers broad UV–IR transmission, high hardness (Mohs 9), and excellent mechanical and thermal stability, making it ideal for environments involving deep-sea pressure, extreme temperatures, vibration, and high-intensity optical loads.
40-20
Surface Quality
0.5λ
Peak-to-Valley（PV）
0.08λ
Root Mean Square（RMS）
±0.02mm
Radius Tolerance
±0.02mm
Dimension Tolerance
0.5λ
Overall Height (＞)
