3D glasses use polarization glasses to make the illusion of three-dimensional images. It happens by restricting the sunshine that reaches each eye. It seems complicated and sophisticated, but at the same time, it’s not according to the facts about 3D glasses.

Facts about 3D Glasses - Eyewear

To present stereoscopic images and films, two images are shown onto the same display with different polarizing filters. The viewer wears eyeglasses that contain a pair of various polarizing filters. As each filter passes only that light which is similarly polarized and blocks the sunshine polarized within the other way, each eye sees a special image. This is wont to produce a three-dimensional effect by projecting an equivalent scene into both eyes but depicted from slightly different perspectives. Multiple people can view stereoscopic images at the same time.

3D Glasses Facts Concept

3D Glasses Concept (https://www.eizo.com/library/healthcare/the_advantages_of_using_polarized_3d_technology_for_surgeries/)

Facts about 3D Glasses

It Has 2 Types

The first facts about 3D glasses are it has 2 types. All we know is 3D glasses only have 1 type and 1 shape. But, the truth is, 3D glasses have 2 types. Which are Linearly Polarised Glasses and Circularly Polarized Glasses.

The linear polarized glasses are wont to see a movie of two images that are projected onto a screen through orthogonal polarizing filters. As each filter only passes light that’s similarly polarized and blocks the orthogonally polarized light, each eye only sees one among the projected images, and therefore the 3D effect is achieved.

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The same thing happens with circularly polarized glasses. They are used to seeing a motion picture of two images that are shown on a screen through circular polarizing filters. The glasses have a pair of analyzing filters. These are circular polarizers placed in reverse. The light that’s left-circularly polarized light will be blocked by the right-handed analyzer and vice versa.

Also Function in Healthcare Field

We understand that 3D glasses are majorly used for entertainment purposes, such as 3D movies and games. But, 3D glasses actually not only used for fun but also for health purposes. Yes, these glasses are also known in the healthcare industry as one of theirs.

So far, its uses in optometry and ophthalmology. They use 3D glasses as polarized glasses for various tests of binocular depth perception. It’s not widely used, yet. But it doesn’t impossible that it’ll widely use someday in other industries also.

Very First Sight of a 3D Glasses

These facts about 3D glasses will be surprising for those who only know the 3D trends lately. Why? Because they’ll realize that the 3D trend already exists in the 1930s! It’s much older than it seemed, right? 3D glasses became practical in the 1930s. 1934 to be exact. It all happens after the invention of polaroid plastic sheet polarizers by Edwin Land.


As something that we see every day daily, 3D glasses have become one of the things that needed to be the tools of fun. But, with that in mind, some so many people don’t know 3 major facts about 3D glasses.

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The first thing to say is when exactly the 3D glasses found, which is lead to the fact that it was found almost 100 years ago. That fact alone is insane since the 3D trend seems still on it. Even they still need 3D glasses for 4D movie experiences proof that 3D glasses still a trend.

And, not only used for entertainment purposes, but 3D glasses also hold a big role in the health industry. To be used for optometry and ophthalmology, 3D glasses prove that it can be an all-rounder with so many purposes.

Of course, 3D glasses or the 3D trend will die down sooner or later. But, its legacy to the entertainment world won’t be easily forged. For further information read general facts about glass also in here.