Kooptech's blog - 3D technologies
If there was one company that definitely changed the game when it comes to the 3D technology, XPAND has to come up as the first one on the list. It might be argued that there were far more influential companies that brought up 3D to the market, but without XPAND we wouldn’t have the luxury to watch a crisp and bright 3D movie in our own home cinemas with a comfortable pair of glasses that work with almost any 3D TV screen there is. How did XPAND achieve such status?
3D technology might seem like a huge advancement made only in the recent years, but in fact it has been present on the market way earlier and was used by some photographers for decades. The way it works is completely based on human eyes and their ability to see depth. The official name for how 3D technology works is “stereoscopy” and it means the use of showing images separately to each eye and using the natural capabilities of the eyes and the brain to make it into one image.
All methods of 3D display, including passive methods that use polarization are based on the idea of stereoscopy. However, passive 3D is not the only method on the market and here is where XPAND comes in. Their active shutter method works in a slightly different way, where two images are shown to each eye separately, using alternating shuttering of the lenses. An image is shown to the right eye while the left one is being blocked and immediately after, the left eye sees the image designated for the left eye. This all happens in such a rate that human eye doesn’t see the actual shuttering and perceives the movie as one, 3D image. The XPAND 3D Glasses that were made to work with it technology are much more expensive and advanced than those used with passive technologies, but they are far better quality and much more comfortable than their passive counterparts.
One of the biggest challenges for the active method was to perfectly synchronize the glasses (which are now not just a piece of plastic, but actual device) with the projector. Fortunately, the company managed to do so not only for their own cinemas, but slowly incorporated the technology into TV sets and home cinemas. Now, everyone can enjoy 3D movies with their universal 3D glasses by XPAND 3D!