Vizio showed off a new 3D TV at CES 2013. It uses technology that has been around for a while, but only worked when viewed from the right angle. The latest technology has more viewing angles, so there are fewer dead spots. Future displays are expected to have more viewing angles. So far, this is the closest anyone has come to creating a true 3D television that doesn’t require glasses, but Vizio won’t release a real product until early 2014.
Here are some of the key features and events that have allowed 3D to come this far.
1838: Charles Wheatstone invented the 3D stereogram along with a device called a stereoscope. He discovered the development of binocular vision which led him to construct a stereoscope, a complex of prisms and mirrors, to allow a person to see 3D images from two 2D images.
1850: Wilhelm Rollmann developed the first method of engraving images and glasses for viewing them. Two color modes are used. Each image is distinguished from two simulacra by a different color, and the gasses of both eyes allow to see only one. attached images. Red and cyan were the most common colors, because they produce fewer masks than other color combinations. Anaglyph movies didn’t do well because the glasses can cause headaches.
1861: Oliver Wendell Holmes, Sr. He invented an improved stereoscope that did not need mirrors. It was also much less expensive to produce, helping it to remain enormously popular for decades.
1890: William Friese-Greene received the first 3D film patent. The patent explains that the film is to be cast on two separate screens. Stereoscopy merges two views into one, which is seen by a 3D viewer.
1896: Auguste Berthier discovered the principle of parallax barrier. At the time it had no practical use.
1901: Frederick E. Ives created the first functional autostereoscopic images. This was the first use of 3D without glasses, but it was not feasible until much later.
1934: Edwin H. Land invented the Polaroid plastic film. For film, two synchronized films are projected onto one screen with opposite polarizing filters. Glasses with the same polarizing filters are used to project images from one view to each eye, producing 3D images for the viewer.
1970: Arc Gobler develops 3D Space-Vision. The new invention eliminated the need for a double reel of film, covering two stereoscopic images on one reel. Unfortunately, there was a trade-off: the movies weren’t as clear as their 2D counterparts.
1970: A company called Stereovision invented a new way to project two motion pictures through a single Polaroid filter. Two drives in one anamorphic film are shown on the same side, producing a single 3D film.
mid-1970s: liquid crystal glasses were invented by Stephen McAllister, of the Evans and Sutherland Computer Corporation. The glasses work by alternately darkening, shading the view of each eye in time with the frame of a television machine or projector. This allows a single display to show a separate image for each eye, alternating between the two images rapidly. The human brain sees it as a single, continuously flowing 3D motion.
2005: Philips created a technology that uses a parallax barrier across the display. The e block is clear that vertical lines only allow elements to be displayed from specific angles. This allows the viewer to see two images at the same time, as long as they are viewing the show from the right angle.
