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IMAX (an acronym for Image MAXimum) is a motion picture film format and a set of cinema projection standards created by the Canadian company IMAX Corporation and developed by Graeme Ferguson, Roman Kroitor, Robert Kerr, and William C. Shaw. IMAX has the capacity to record and display images of far greater size and resolution than conventional film systems. Since 2002, some feature films have been converted (or upgraded) into IMAX format for displaying in IMAX theatres and some have also been partially shot in IMAX. IMAX is the most widely used system for special-venue film presentations. As of October 1, 2015, there were 1008 IMAX theatres in 66 countries. ==History== The desire to increase the visual impact of film has a long history. In 1929, Fox introduced Fox Grandeur, the first 70 mm film format, but it quickly fell from use.〔70 mm Grandeur film〕 In the 1950s, the potential of 35 mm film to provide wider projected images was explored in the processes of CinemaScope (1953) and VistaVision (1954), following multi-projector systems such as Cinerama (1952). While impressive, Cinerama was difficult to install. During Expo 67 in Montreal, the National Film Board of Canada's ''In the Labyrinth'' and Ferguson's ''Man and the Polar Regions'' both used multi-projector, multi-screen systems. Each encountered technical difficulties that led them to found a company called "Multiscreen", with a goal of developing a simpler approach. The single-projector/single-camera system they eventually settled upon was designed and built by Shaw based upon a novel "Rolling Loop" film-transport technology purchased from Peter Ronald Wright Jones, a machine shop worker from Brisbane, Australia (see ). As it became clear that a single, large-screen image had more impact than multiple smaller ones and was a more viable product direction, Multiscreen changed its name to IMAX. ''Tiger Child'', the first IMAX film, was demonstrated at Expo '70 in Osaka, Japan.〔(【引用サイトリンク】title=IMAX'S Chronology of Techonological (sic) Events )〕 The first permanent IMAX installation was built at the Cinesphere theatre at Ontario Place in Toronto. It debuted in May 1971, showing the film ''North of Superior''. The installation is still in place, however, Ontario Place is on hiatus for redevelopment. During Expo '74 in Spokane, Washington, an IMAX screen that measured was featured in the US Pavilion (the largest structure in the expo). About five million visitors viewed the screen, which covered the viewer's total visual field when looking directly forward. This created a sensation of motion in most viewers, and motion sickness in some. An IMAX 3D theatre also is in operation near the former Expo 67 site at the Montreal Science Centre in the Port of Old Montreal. The first permanent IMAX Dome installation, the Eugene Heikoff and Marilyn Jacobs Heikoff Dome Theatre at the Reuben H. Fleet Science Center, opened in San Diego's Balboa Park in 1973. It doubles as a planetarium. The first permanent IMAX 3D theatre was built in Vancouver, British Columbia for ''Transitions'' at Expo '86, and was in use until September 30, 2009.〔 (official site).〕 It was located at the tip of Canada Place, a Vancouver landmark. As China is now the second largest market after the USA with roughly 25 IMAX theatres located throughout the country, IMAX aims to attract more viewers by decreasing the admission prices in China.〔(【引用サイトリンク】 IMAX lowers prices in China )〕 Greater China has around 251 IMAX theaters. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IMAX」の詳細全文を読む スポンサード リンク
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