Fused Silica Domes

Fused Silica Optical Dome

UV Fused Silica Domes is a good choice in the Solar Instruments. It including ultraviolet fused silica and infrared fused silica.

For the silica, it has a good transmittance from 180nm to2650nm, then it is good choice the protected UV Radiometers.

For the IR silica, it has broadband transmission from 200nm to 3600nm, it can keep the pyranometer has a wider spectral range, improved directional response, and reduced thermal offsets.

And Fused Silica mechanical properties it better than N-BK7, Borosilicate. Some of high quality deep-sea housings is made fused silica dome, it have wide-angle and can be protective the deep-sea camera.

Optical dome are lenses with two concentric spherical surfaces. Sometimes they are being referred to as bent plan parallel plates. Consequently it is customary to define parallelism between two surfaces as the maximum thickness variation between the two surfaces.

In perfect domes the convex radius is equal to the sum of the dome thickness and concave radius, , creating a naturally strong shape that gets tougher under pressure. This makes dome windows ideal for underwater environments and in applications such as camera dome ports and submersible windows.

Fused Silica is outstandingly resistant to water, salt solutions.

Mechanical properties is better than many optical glass:

Compressive strength (approx.): 1150N/mm2

Tensile strength (approx.) : 50N/mm2

Bending strength (approx.): 67N/mm2

Torsional strength (approx.): 30N/mm2

Optical properties have broad transparent transmission range covers the complete visible spectrum and extends far into the infrared and ultraviolet regions.