Since Paris 2024, designer Mathieu Lehanneur has not quite come back down to Earth. Toki Woki infiltrates his studio and behind the scenes of the making of this mythical object of the Olympic Games.
He is the creator of an object seen by nearly 5 billion people. «It’s rare. For any designer. We’re talking about the Olympics and the Paralympic Games so obviously, we’re touching the whole world.»
It is in his studio in Ivry-sur-Seine (Val-de-Marne) that Mathieu Lehanneur spends most of his time. A space in light tones, adorned with his numerous creations and where the Olympic torch stands in the middle of them. A handmade object, duplicated a hundred times and filmed by thousands of cameras.
This adventure began with a competition launched in 2022: «Paris 2024 had chosen a number of designers, and so we all had, I think, a month to design, propose an Olympic torch and Olympic cauldron».
In January 2023, the designer was called by the committee, and he was chosen to design all the Olympic objects. From there, prototypes were put into production. The torch is not only an aesthetic challenge but also a technical one. The flame must not go out.
The burner must hold: «It is what will ensure that no matter the wind speed, the flame will remain lit. In fact, you have to imagine that it will be inside. So ultimately, an Olympic torch is this high part, this burner, a lower part, and a small gas cartridge that is inserted from below to ensure combustion.» Despite numerous tests, the designer admits that he couldn’t help but clench his fists every time the torch passed: «I was scared all the time.»
The torch is not the only object that Mathieu Lehanneur had to imagine. He is also responsible for the flying cauldron that caused a sensation on social media. A bowl directly inspired by the slogan of Paris 2024 «Let’s open the Games wide»: «For me, the cauldron had to live up to that. Usually, an Olympic cauldron is in a stadium. Here we take it out of the stadium, but that’s not enough. People need to be able to approach it. We have to be able to say from as many places in Paris, we will see it. And then there is also this idea that the sacred fire that we light in Olympia, Greece, at the beginning of each Olympiad, comes from the sun. We will pass it on during the relay over these thousands of kilometers.»
Et à la fin, il enflamme la vasque et la vasque s’envole vers le ciel, vers son origine».
Mathieu Lehanneur dans son atelier à côté de la vasque des JO 2024
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© THOMAS SAMSON / AFP
Alors qu’il cherche un moyen de ramener la flamme à son origine, le designer s’inspire des travaux des frères Montgolfier. C’est ainsi que la vasque volante voit le jour.
Pour faire voler cette immense lumière au-dessus de Paris, un ballon rempli d’hélium est nécessaire, relié à de nombreux câbles et à une nacelle portant la flamme. L’anneau de feu est en réalité une série de tuyaux qui envoient de l’eau sur des spots LED pour créer de la fumée et donner l’impression «d’une flamme absolue».
La vasque volante des Jeux olympiques de Paris 2024
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© J-F ROLLINGER / ONLY FRANCE
L’objectif : créer du feu avec de l’eau : «Nous sommes quelques mois avant la cérémonie d’ouverture et nous testons la partie basse, la nacelle avec la flamme. Et donc nous ne voulons pas utiliser de ballons car nous voulons rester discrets. Nous faisons donc monter toute la nacelle sur une grue de 80 mètres de hauteur et vérifions si la flamme se comporte bien. Et au bout de dix minutes, nous entendons des sirènes de pompiers. Ce sont les pompiers qui arrivent, persuadés qu’il s’agit d’un vrai feu. Donc lorsque nous faisons ce test et que même les pompiers pensent qu’il s’agit d’un vrai incendie, nous nous disons : je crois que c’est bon, nous avons réussi».
Retrouvez l’intégralité de l’interview de Mathieu Lehanneur en replay sur france.tv/idf

















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