Wondering How 3D Glasses Work?


Have you been wondering how 3D glasses work?

First, you must distinguish between the technology you will be using and the technology used to format the 3D content from your television to your 3D glasses.

Let’s take a peek at two different technologies, active shutter and passive 3D technology.

Here’s how 3D glasses work.

Active shutter means the glasses actively seek out an IR (infrared) signal or blue tooth signal from the television set or IR emitter.

The lenses on this type of 3D glasses open and close at a rate so fast, your eyes cannot tell. And this opening and closing allows 3D content to be viewed by your eyes. These 3D glasses also need to be powered by a battery either rechargeable or replaceable.

The other type of 3D glasses used is called passive. Passive 3D glasses are not the same as active shutter. These are the types of 3D glasses you will find in movie theaters. They actually are not powered and the television set itself causes the 3D effects too occur.

Now you know the two types of 3D glasses, let me explain to you the two most popular types of 3D format broadcast by your television set or Blu-ray player.

And here is where this emerging technology has some television owners befuddled.

Back a few years ago Samsung and Mitsubishi started developing 3D ready televisions and based their broadcast format in “checkerboard”. Which was a major mistake, as the technology developed, most Blu-ray producers and television manufacturers chose the now popular side by side format to display 3D content.

The checkerboard broadcast format is rare and isn’t in much use anymore.

And just so you know, imagine a picture broadcast in pixels which forms into the shape of a chess board. Then when the 3D glasses view this image, it changes it into 3D content.

To make it easier for the glasses to change the content into 3D , television manufacturers and Blu-ray producers opted for the less expensive side by side format.

Side by side format means there are two pictures on your television set and when your 3D glasses receives the broadcast from the television it changes it to 3D content.

And that in a nutshell is how 3D glasses work.

Of course, in less than ten years 3D glasses may become obsolete as more and more people are pushing for 3D technology to evolve without the use of 3D glasses,.

And this emerging technology will help produce television and computer monitors which will allow you to view 3D content without glasses.


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