On top of the world at Jungfraujoch
Sitting 3,454 above sea level, Alpine Sensation is the name of a new attraction installed upon the Jungfraujoch, to celebrate its 100th anniversary.
It is an exhibition that includes a 360-degree audiovisual panorama and a 250-metre-long hall, both of which are filled with Panasonic projectors, which deliver superb performance in two ways: They offer exceptional reliability and ensure flawless operation.
The 250-metre-long tunnel and the two halls located between the Sphinx Hall and the Ice Palace provide space for shows. Visitors step onto a moving walkway that takes them past a 90-metre long wall, filled with examples of romantic paintings, which capture a longing for the Alps and recount the story of tourism.
This, however, is just one part of the Alpine Sensation. Others include the 250-metre-long adventure tour and a film-projection room in the Sphinx Hall. One special highlight is the event spaces located along the tour that vividly outline the course that tourism has taken in the Alps and the history of the Jungfraubahn.
Using a stream of sensual images as well as a combination of light and local music from the past and present, the adventure tour takes visitors on a journey that extends from the great idea of Adolf Guyer-Zeller to the gruelling effort that went into building the Jungfraubahn.
In the 360-degree projection room located in the Sphinx Hall, a film transports visitors to the world of towering natural skyscrapers that surround the Jungfraujoch. The Edelweiss Cavern, a room filled with edelweiss-designed lights on the walls, contains an oversized snow globe that depicts the life of the Jungfrau Region and Switzerland.
Amid a collection of vibrant wooden figures, visitors can discover all sorts of surprises as day and night constantly change, and Switzerland is turned into a wonderland (see image bottom right).
Many, very challenging requirements
Experts involved in the project had to address an array of issues when they were planning the project, including a mixed track record for projectors used at locations greater than 3,000 metres above sea level, due to the very cold, damp state of such high-altitude locations.
The integrators, auviso, had to ensure that the projectors would be able to operate flawlessly in this setting every day for a number of years. As a result, reliability was a top priority. Maintenance must be precisely planned and is not always possible during opening hours. In addition, the Jungfraujoch can only be reached by train, a journey that takes nearly three hours from Interlaken. Two other challenges were the cramped conditions and craggy projection areas. Furthermore, the project absolutely had to be able to project fresh, clear, vivid images that could credibly tell the story.
As part of this requirement, the projectors needed to work as quietly as possible, ensuring that visitors could focus their complete attention on the show itself. Finally, the installation had to be easy to complete.
Florian Züger, Head of Systems at auviso, said, "Construction work done at more than 3,454 metres above sea level is not a routine job at auviso. But thanks to far-sighted planning, the know-how of our seasoned experts and the exceptionally reliable products of Panasonic, everyone involved in the work was able to bring this special project to a successful conclusion."
Panasonic's high-performance 1-chip DLP projector
The experts decided to use seven Panasonic PT-DZ6700 projectors that together with their lenses were placed into a special environmental housing. The high-performance 1-chip DLP projector uses a dual-lamp system that continues to work without interruption even if one lamp goes out of service.
The projector's ECO mode extends lamp life to around 3,000 hours. In addition, the projector is equipped for round-the-clock operation thanks to its liquid-cooling system and an air filter that automatically cleans itself.
The PT-DZ6700 model also offers full WUXGA resolution, which delivers vividly sharp images at 6,000 lumens.
With the help of its integrated colour matching and edge blending technologies, up to 100 projectors can be assembled together for a show. To meet other needs, the PT-DZ6700 is equipped with a side by-side function that enables two images from separate sources to be simultaneously shown beside each other.
The projector is compatible with a range of lenses, but to deal with the confined space available for the Alpine Sensation show, auviso decided to use seven ET-DLE080 ultra-wide zoom lenses (0.8-1.0:1). Depending on the projection surface, the projection distance can be significantly reduced in this way.
Florian Züger said, "For this project, we needed dependable and robust projectors that we could feel good about using at 3,454 metres above sea level.
“We were also determined to project fresh, lively and sharp images that would create an immersive, striking and entertaining environment. In this process, luminosity and resolution play a major role. Unlike competitors' products, Panasonic projectors meet all of our needs. That's why we decided to use them for this project."