Having recently equipped the ice hockey stadium of Skellefteå AIK, one of Sweden’s best known teams, with Christie projection, Viju Sverige AB have now produced an inspired Christie rearpro solution inside a huge octagonal cube (‘MediaKub’) for reigning Swedish champions MODO, in their new stadium in Örnsköldsvik.
While four 16:9 aspect ratio media faces produce the live action (and slo-mo replays) for audiences sitting in each of the four stands, these are interspersed with high performance digital scoreboards.
Mats Persson’s company is becoming something of a specialist in these installations. To address each of the 180 inch rearpro lenticular screens he has once again used Christie double-stacked Roadster HD12K 1080HD DLP projectors.
MODO (short for Mo och Domsjö AB, the name of their industrial sponsor) moved to their new stadium two years ago, but it was only recently that they were able to set a budget for the media relays.
Mats Persson recalls: “When they first moved I had to relocate their old video cube on a temporary basis. But this was inadequate for long term use as it measured just 120 inch, with 4 x 3 aspect ratio, and was using tired projectors.”
The new facility has been designed to take it into the modern age. With four sports bars and restaurants and 48 VIP suites contained within an arena measuring 70m x 92m x 23m, it will achieve maximum usage by being reconfigurable. While the venue holds a maximum of 7,600 spectators (with 5,317 fixed seats) for hockey matches, the capacity expands to 9,800 when it stages a rock concert.
The technical infrastructure needed to carry the same high values within a facility that cost 7 million to develop. “There was a lot of discussion about which technology to adopt as many arenas are now favouring an LED approach,” says Mats. “But the club couldn’t see anything that could compare with a projection solution.
“In fact we are finding more and more that with the new breed of Christie projectors we can make life difficult for LED — particularly when you start comparing the 1920 x 1080 resolution of HD.”
Viju Sverige’s solution was to build the giant media cube and suspend it on four chain hoists, with 3,200 kilo load-bearing capacity. The distance from the north-to-south ends of the structure measures just over 10 metres.
Inside are the four double-stacked Christie HD12K’s, mounted on thick platforms, fitted with standard 1.2:1 lens; the beam is folded off a mirror rig structure, created by the installers.
“When we considered the projection devices we had to think about heat dissipation and the mechanics for stacking — and the Roadster HD12K’s were perfect in all respects to project onto the 4-metre screens.”
While the screens give high visual acuity, the LED scoreboards are a great improvement on their predecessors, and four faces support a digital banner, measuring 4.2m wide x 75cm high, at the base for advertising etc.
Remote control of the projectors enables a single projection stack to be activated (in the event of the arena being used for a corporate Powerpoint presentation) while Sweden’s Hockeyliga ensures that an OB truck is on hand at all the home matches — with a split running from the cube straight to the technical bus.