Autostereoscopy

Having come across this while researching 3D movies, ive decided to look into it further:

3D viewing has been grabbing headlines for a hundred years. All kinds of gadgets have promised to bring 3D images bursting through our screens. But none have come close to fulfilling that vision. Until now.
SeeReal's NextGen technology is changing the conventinal methods of 3D technology, with its release to be seen in the near future 3D technologies will soon be a thing of the past.

Making the most of existing technologies, NextGen’s unifying technology for 2D and 3D stereo has a number of advantages:

Full resolution 2D and 3D stereo
Comfortable freedom of movement
A breakthrough in multi-user potential
Compatibility with existing components,others can be mass produced
Scalable design making it easily applicableto almost all display sizes

http://www.seereal.com

Areas of Use
This new 3D technology will be useful in many different technologies but focusing on film;
It will make possible the production of 3D movies without the need to wear glasses to experience them.
It works in much the same way that we see images normally, the 3D movie will be produced so that each time we see a new image it will actually be two 2D images which are slightly different, one of these images is sent to our right eye and one to our left, the brain then converts the images into one exactly the same way as we see normally. Therefore this creates the illusion of a 3D picture, allowing 3D images to be seen without the need to wear glasses.

One type of autostereoscopy is the Parallax Barrier:
This works by using a device to allow liquid crystal display to show three dimensional images without the need of any other equipment, it will be mainly used in cinemas and placed behind the screen it consists of a layer of material with a series of precision slots, allowing each eye to see a different set of pixels, so creating a sense of depth through parallax. A disadvantage of the technology is that the viewer must be positioned in a well defined spot to experience the 3D effect.

http://www.wired.com/wired/archive/11.12/tools.html
This article discusses the basics about Autosteroescopy and Parallax barrier, from reading it i can tell that this new technology will be a great benefit to the industry, and has opened up a whole new way to create movies.
It aloso makes known some of the other upcoming ways of perceiving 3D images.