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The tilted dome cinema screens produced by our company uses the aluminum alloy frame and bolt links to build the dome supporting structure.
The projection's reflection surface is made of hyperbolic forming, which makes the dome screen splicing out a real sphere (not an approximate sphere spliced out of normal flat panels). It is widely used in popular science and entertainment places such as the dome screen cinema. It can be chosen to build arbitrarily different diameters, different spheres, such as: hemisphere, spherical crown or super hemisphere etc.
http://www.jdcxplanetarium.com/