Quartz Conductive Global Dome (also known as Edge-Conductive Quartz Dome)

I. Core Features

Excellent Optical Performance

• High transmittance: Transmittance exceeds 90% in the UV, visible to near-infrared (~2650 nm) bands, ensuring clear imaging and non-attenuated signals.

• Low dispersion & low stress: Minimal optical distortion, suitable for high-precision detection and imaging systems.

Unique Conductive/Antistatic Function

• Edge conductivity: The metallic film on the edge can be grounded to discharge static electricity rapidly, preventing electrostatic breakdown of sensitive chips and dust adhesion.

• Electromagnetic shielding: Blocks external electromagnetic interference to a certain extent, ensuring stable operation of electronic systems.

Outstanding Environmental Resistance

• High temperature resistance: Softening point at approximately 1730℃, suitable for long-term use at 1100℃.

• Strong thermal stability: Extremely low coefficient of thermal expansion, excellent thermal shock resistance (no cracking under rapid heating or cooling).

• Corrosion resistance: Resistant to acids, alkalis, moisture and weathering, ideal for harsh environments such as outdoor and deep-sea applications.

• Mechanical strength: High hardness and good compression resistance to protect internal optical components.

II. Main Application Fields

• Infrared/photoelectric detection systems: Missile seekers, electro-optical pods, infrared thermometers (antistatic, anti-interference, high transmittance).

• High-end security & surveillance: Outdoor high-speed dome cameras, border monitoring (temperature resistance, weather resistance, anti-fog and dustproof).

• Deep-sea/underwater equipment: Underwater remotely operated vehicles (ROVs), deep-sea cameras (water pressure resistance, corrosion resistance, high light transmittance).

• Medical & analytical instruments: Laser equipment, spectrometers, high-precision sensors (insulation, cleanliness, high temperature resistance).

• Aerospace: Satellite remote sensing, airborne radomes (lightweight, cosmic radiation resistance, thermal stability).

III. Differences from Ordinary Quartz Domes

• Ordinary quartz dome: Only provides optical protection and environmental isolation; it is insulating and non-conductive, prone to static accumulation and electromagnetic interference.

• Quartz conductive global dome: Conductive coating on the edge, combining optical protection, antistatic and electromagnetic shielding functions, suitable for high-precision and high-reliability electro-optical systems.