Real D Cinema

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Real D Cinema is a digital 3D stereoscopic projection technology which does not require two projectors, unlike some older 3D stereoscopic projection technology. A high-resolution digital projector using Texas Instruments' DLP Cinema technology is used.

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The Real D 3-D system was invented by Lenny Lipton, an American inventor. It is based on the push-pull electro-optical modulator called the ZScreen.

The technique that Real D uses is comparable to the traditional method of 3-D imaging which uses linearly polarized glasses. The traditional method works by projecting two differently linearly polarized images onto the same screen, polarized at +45° and -45° from the horizontal, which are then filtered by linearly polarized glasses worn by the audience. This type of 3-D imaging requires two projectors, and suffers from visible double-imaging if the head is tilted to the side which places the glasses at an inappropriate angle.

Real-D however uses a single projector that alternately projects the right-eye frame and left-eye frame, and circularly polarizes these frames, clockwise for the right-eye and counterclockwise for the left-eye, using a liquid-crystal screen placed in front of the projector lens. Circularly polarized glasses make sure each eye sees only "its own" picture, even if the head is tilted. The very high framerate, which is 72fps per eye, makes sure the image looks continuous. In Real D Cinema, each frame is projected three times to reduce flicker, as the source video is usually 24fps. The result is a seamless 3-D picture that seems to extend behind and in front of the screen itself.

The first film released using this format was 2005's Chicken Little. For this release, the computer-animated film was re-rendered in 3-D by Industrial Light and Magic and exhibited on Real D Cinema Systems using Dolby Digital Cinema servers.[1]

The 3D version of Chicken Little has so far earned about 2.5 times as much per screen. When the movie was first shown in 2005, fewer than 100 theaters around the US were equipped to show the movie in 3D. These statistics are difficult to correlate on their own given the many unknown factors involved.

Also, a stereoscopic 3D version of the film Monster House has been created and is expected to have a limited special release in the REAL D Cinema format along with the "flat" version. Monster House was released in approximately 200 theaters equipped for REAL D Cinema . In October 2006 and again in October 2007 The Nightmare Before Christmas was re-released in this technique as well.

Meet the Robinsons was released March 30th, 2007, in both traditional "flat" and "3D" versions of the film. The film was converted to stereo by Digital Domain. Some estimate over 700 screens for the 3D release of the film. That would make this release the largest ever using the Real D system.

Beowulf, directed by Robert Zemeckis, released in November 2007 is another film that uses the Real D 3D technology. The number of Real D Ready theaters world wide now stands in excess of 1,100 as of Beowulf's release.

U2's concert film based on the Vertigo Tour will debut in Real D in late 2007. Also, New Line Cinema and Walden Media's Journey 3-D is set to be released in summer 2008 making it the first live-action film to be released in Real D format 3D. On March 12, 2007, DreamWorks Animation announced [1] that beginning with the summer 2009 release of Monsters vs. Aliens, all of their features will be released in theatres in 3D, with Monsters vs. Aliens to be filmed from the outset using Real D technology. Horrorween 2008 will also be filmed in Real D 3-D. 3-D legend Chris Condon, and Director Ed Meyer, are set to remake The Stewardesses, the most successful 3D film in history, in Real D in 2009. Also, Dante's Inferno is expected to be released as an animation feature in 3D as well as a live action feature in 3D in 2009[2].

  1. ^ "A Look at Chicken Little in 3D" July 5, 2005, movieweb.com

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