Why did the five rings change into four in the National Games?

The opening ceremony of the Tianjin National Games held on August 27 used high technology such as 3D ground projection technology to present very wonderful visual effects, but there was also a little regret, that is, when displaying the five Olympic rings , one ring does not light up and becomes "four rings". Afterwards, the opening ceremony chief director Meng Ke and production director Chen Hong both apologized to the public and revealed the reasons behind it.

Chen Hong, the production director of the opening ceremony, said the reason behind it: "We have to face the wind and rain, and we have made some plans. But the presentation of the five rings requires wire hanging. While it was traveling, we failed to seal it completely, and the technical aspects were not perfect, and rainwater leaked. There were lights on it, and the main responsibility for the circuit failure was mine. Our work was not done carefully, and I would like to apologize to everyone.”

Due to the typhoon, it rained all day in Tianjin on the 27th. The heavy rain caused a short circuit in one of the Fifth Ring Roads. The ring failed to light up in the night sky. However, the opening ceremony was not limited to the Fourth Ring Road that was affected by rain.

In the eyes of the audience, the light and shadow effects presented by 3D ground projection technology are already very cool, but the organizers do not think so. Chen Hong pointed out that the multi-angle diffuse reflection and light absorption caused by rain made the projection effect only reach 30% or 40% of what it should be: "What we used this time is a leap-forward technology that just appeared in projection technology at the end of last year, which is from xenon lamps. The light source is converted into a laser light source, which makes the brightness of the ground very high.

Whether it is domestic or foreign, weather is the most critical factor for outdoor large-scale events. However, Liu Chunlei, director of the Cultural and Sports Performance Department of the Opening and Closing Ceremonies of the National Games Organizing Committee, believed that the rain also brought gains to them: "In this case, the mental state of all our cast and crew can make everyone feel People who come to Tianjin strive to express their feelings towards the country and contribute to the people of the country. The rainy day tested us, and although there were technical flaws, in other ways we gained more.

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