ZnS Ball Cover

Customizable ZnS Dome Cover Optics

  • Material：ZnS
  • Transmission Range：3 – 12 μm
  • Diameter：Common sizes from 10mm – 100mm (customizable)
  • Surface Quality：60/40, 40/20, 20/10 optional
  • Spherical Accuracy: λ/2, λ/4 available upon request
  • Coating Options: AR / DLC / BBAR customizable
Category:

ZnS Dome Cover (Sulfurized Zinc Dome Cover) usually refers to a spherical or hemispherical protective cover or shell made of ZnS material.

It is widely used in infrared optical systems, especially in scenarios that require a large field of view angle, high strength, and infrared transmissivity.

It can efficiently transmit infrared light within the 3 – 12 μm wavelength range. Therefore, it is widely applied in various high-performance systems such as infrared windows, sensor protection, and flight platforms.

The advantage of ZnS dome cover

  • Broad-spectrum infrared transmissivity

High transmittance covering two key bands: 3 – 5 μm (mid-wave infrared) and 8 – 12 μm (long-wave infrared)

  • High mechanical strength and impact resistance

ZnS has excellent strength and hardness, making it suitable as a window material for high-speed aircraft.

  • Good environmental adaptability

Capable of working in harsh conditions, including high temperatures, sandstorms, rain and snow, etc.
It can be combined with Diamond-Like Carbon Coating to enhance its scratch resistance and corrosion resistance.

Application fields of the dome cover

  • Infrared thermal imaging system
  • Missile infrared seeker
  • Infrared window of unmanned aerial vehicle / flight platform (UAV IR Window)
  • Laser Sensing System
  • Industrial infrared temperature measurement and safety monitoring equipment

 

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