Wednesday, May 16, 2012

Reading between active and passive 3d glasses

Reading Between Active and Passive 3D Glasses

In your 3D viewing experience, there are some things that should always be part of the experience. Include your 3D glasses in the list- the viewing experience without these glasses cannot be complete. Now glasses don't come in one package; these glasses come in different forms and styles and can come with different technologies. For technology-driven glasses there are two types of glasses worth considering- the passive 3D glasses and the Active glasses. The difference between the two or similarities if any are discussed below

The things going for Passive 3D glasses

When you say passive 3D glasses, this mean that these glasses will not need a power source in order for you to enjoy the experience. Expect two sub-types for the passive glasses, and these are the polarized glasses and the anaglyph. Often, the main reason for selecting this type of glasses is that this is cheaper as compared to the other type. This type does not require power, thus making this the in-expensive choice for many.

Take the case of the anaglyph glasses. These glasses often come in one red and one cyan lens, and the main material is cardboard. Using these types of glasses is fun, but not as good if compared to other forms of glasses. And since this is made from cardboard, then you can say that this is the least advanced in terms of technologies from among 3D glasses. There are polarized glasses too under the passive category. These glasses can be lumped as linear polarized and the circular polarized.

Why settle for Active Glasses

For more sophistication and better viewing experience, often the recommendation is to go for active 3D glasses. These are the glasses that are now commercially-produced and these will require a power source. And for the emerging technology, the shutter glasses are the ones often considered for viewing 3D content.

There was a time when glasses used for the 3D viewing experience are connected by wires to the power source. But due to the need for convenience, these shutter and active glasses are now powered by batteries. And since there are a lot of things going for these types of glasses, expect to pay a hefty sum. Most of these glasses are sold from $50 to more than $100 depending on the manufacturer. The good news is that the moment you buy a 3D television, you will be provided with a pair of these glasses. But if you want an extra, then you have to pay the said amount.

It's not all good for these glasses; active 3D glasses have its own share of flaws too. One flaw is that the separate images for both eyes are not delivered at the same time. There will be an alternate delivery of the images. These glasses are still in active development, and corrective actions are being taken. Right now, for the best viewing experience the shutter glasses from leading manufacturers are being recommended. These shutter glasses are made for 3D and made to promote better 3D viewing experience.


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