3D TV Glass Systems
The revolutionary plans of the upcoming 3D home theater are all about offering the finest television technology to the consumers. Today, television manufacturers use a number of technologies to produce 3D TV images. Popular methods of producing 3D imagery are Active and Passive Glass Systems and Lenticular Viewing.
Passive Glass Systems
Hyundai is developing this type of LCD screen which will enable the viewing of both 2D as well as 3D images. The viewers will be required to wear the traditional glasses in order to watch 3D images. There is nothing new in this technology. The TV has two overlapping images and the glasses have polarized lenses. Each lens is polarized so that it can see only one of the two overlapping images. This technology is very realistic and LCD TVs of 40 to 50 inch with this technology are currently available in the market.
Active Glass Systems
This system is very similar to the passive glass system, except that all the work is done by the glasses rather than the TV. The glasses synchronize with the refresh rate of the TV, and then they alternate the polarization of each lens, making the wearers of the glasses see 3-D images. With this technology, people could be watching a 2-D movie comfortably, then at will switch the movie into 3-D. Samsung and Mitsubishi are developing this type of screen. The only drawback is that the glasses could be very expensive, may be more than $100 each.
Lenticular Viewing
The lenticular viewing technology has been invented by Philips, and is still available in the market. TV sets that use this technology can be watched without the glasses that audiences use in theaters. These televisions use a lens that can send different images to each eye. That is, your left eye will see a completely different image from your right eye, which will imitate your two eyes’ use of stereopsis (the process by which your eyes discern depth). The only one drawback of this system is that the viewer must sit in a very specific spot in front of the TV. This means that only a couple of people would be able to comfortably watch TV due to its small viewing angle.
