Optical Dome

Optical Dome

The optical glass dome is our company's superior product. In the past, most of the fairings were infrared grade, which was mostly used in military products.

With the development of military-civilian integration, especially in visible materials and ultraviolet, we have become one of the best optical components companies and have made technological breakthroughs, and we have obtained the patent certification of ultra-hemispheric processing technology. The optical domes are widely used in camera dome imaging, weather monitoring, navigation systems and so on. The radii of curvature of the two planes will not cause image distortion and light refraction. Ecoptik can provide different kinds of optical domes, like a clear dome, UV dome and IR dome.

Optical Dome Manufacturing Capbility


UV material: (fused silica JGS1, Coning 7980, Borosilicate glass)

Visible material: Optical glass (Schott N-BK7, N-BK10, WG295,N-K5,etc.)

IR material: (Fused Silica JGS3, Sapphire, Silicon, ZnSe, etc.)





Surface Quality

60/40, 40/20, 20/10

Surface fringe



Antireflection (AR) Coating

Strenthened via heat treatment (tempering)

Ecoptik Optical Dome Features and Advantages

Two surfaces that are almost perfectly parallel

1.To ensure that the two surfaces are absolutely parallel, the eccentricity tolerance and radius of curvature tolerance must be very well controlled.

2.The current DOME parallel tolerance of ECOPTIK is < <±2μm.

High precision surface accuracy ensures  imaging without distortion

1. Although limited by the spherical shape, the overall surface fringe cannot be measured at present, ECOPTIK tries its best to improve each local surface fringe within the detectable range.

2. At present, the ECOPTIK dome local surface accuracy can reach λ/10

Unique hype-hemispheric processing  capability

1. The super-hemisphere is the part of the height beyond the spherical core, and ECOPTIK has a practical patent for the process.

2. The maximum range can exceed the radius by 3mm.

Optical Dome Applications

In the optical field, the application of an optical dome lens is mainly divided into two categories, one is military manufacturing and the other is ordinary optical systems.

  • Military manufacturing mainly refers to the infrared dome, mainly ZnSe and sapphire materials.

  • An optical system, mainly used for imaging and detection measurement system. It is mainly used for deep-sea imaging in imaging. The glass material can withstand sufficient water pressure and does not deform due to the acrylic material. Furthermore, the light transmittance of glass, the bubbles and stripes of the material itself, and the smoothness and hardness of the surface of the material itself make more deep-sea exploration keen to choose the glass material dome. Also used for atmospheric detection, pyranometer. The two almost parallel surfaces prevent the light from being significantly refracted when passing through the component, thereby ensuring that energy is not lost and improving the accuracy of the measurement.

  • Meteorological monitoring: A device that collects sunlight in a total solar radiometer. The nearly absolute parallel design makes no refraction loss of light, perfect record of the radiation data of sunlight.

  • Observation to space: Dome in all-sky camera is designed to provide high quality sky images for weather and meteor observations. The purpose of these systems is to carry out All of Full Sky (180°x180°) surveillance of the night or day sky, and in a continuous fashion. It is possible to assess, in real time, the night sky quality, and to record fast phenomena (meteors and fireballs) or slower (satellites, rockets, noctilucent clouds, zodiacal light, aurora, airglow ....).

Optical Dome FAQs

  • What Is The Difference Between Glass And Pmma? Which One Is Better?

    First of all, this should be an optical component. Glass is more conducive to imaging, with better light transmission and stabilit. The surface of the glass is relatively hard and is not easily scratched. The surface of PMMA is easily scratched, which affects the imaging effect.

  • How To Equip If There Is No Flange?

    It is recommended to use a super hemisphere, the excess part can be glued with the assembly. In terms of cost, it is much cheaper than a lens dome with flanges, and the sealing is also very good.

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