MIT Students Develop Cheap Glasses-free 3D Tech
A new method to project 3D images has been worked up by a research group at MIT. This is the Media Lab Camera Culture Group who has worked out a cheaper method by stacking many LCD panels one top of the other. Each of the panel displays a slightly different perspective of the base image and each of them run at high refresh rates. This results in the human eye conjuring up the image in 3D. The technology is supposed to be able to be viewed from different angles therefore making it a glass free multi viewing capable end result.
The present glasses free technology requires either a camera on the panel which would track the eye. This system used on the Toshiba F750 3D laptop is therefore limited to one set of eye only. Such factors have limited the technology in its usage or popularity.
There is another technology for glass free 3D wherein more than one lens is used to be able to cater for multiple viewers. But that too has its limitation as the viewers have to be fixed at certain spots to view the 3D. Also the technology based on Hologram is cost prohibitive.
The three lens technology which MIT people have used is unique in that the lens need not be costly and the filter that is being applied to the lens is a clever concept. The refresh rate for viewing in 3D is 360 Hz and that is way above what today’s technology is able to dole out. It is this aspect that needs to be addressed for the MIT formulated technology to take shape.
The team had built a prototype which used two lenses and the viewing angle had been restricted to 20 degrees. Using a special lens in between they had been able to increase the viewing angle to 50 degrees. What the technology requires is graphics intensive cards which are available in the market today.