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3D glasses – How Do They Work?

June 27, 2024 | Jasmine Karichi

3D eyeglasses are classified into three categories, depending on the angle and stereo frames (effects) formed when light strikes the glass surface. The frames formed a; polarized, active, and anaglyph. 3D glasses, especially anaglyph and polarized frames, use a technology that has a wide application today. Their uses and application range from the use of … Continued

3D eyeglasses are classified into three categories, depending on the angle and stereo frames (effects) formed when light strikes the glass surface. The frames formed a; polarized, active, and anaglyph. 3D glasses, especially anaglyph and polarized frames, use a technology that has a wide application today.

Their uses and application range from the use of eyeglasses to making television screens. In order to view 3D images clearly, one needs to have Red/Cyan 3D glasses. The recent application of 3D in the resurgence of video presentation and images has led to massive growth in CDs distribution and printing business.

Are 3D glasses good for everyone?
Absolutely Not. People who are partially blind might not be able to see through these glasses clearly. Their eyes are not able to triangulate between the planes. This is because if objects are too close and someone is farsighted, these objects will become blurred and hard to see. The opposite is true for those who are nearsighted. In general, 3D glasses are unique and are recommended for people with good eyesight. In fact, people with eye problems are not supposed to use 3D glasses because is actually can worsen their conditions.  

How do they work?
Since the explosion of 3D invention around 1922, a lot of developments around this technology have been happening to turn the game around. The latest advancement that was done so far was by James Cameron with his movie Avatar. The use of 3D glasses is popular amongst the masses and is not going anywhere anytime soon. The increased digital use of 3D technologies especially in cinema is one that has overtaken any other technology in the movie industry.

The 3D glasses are chromatically arranged with anaglyph, polarized, and shutter. The three are placed and strategically arranged at an angle, to bring flat images into a unique focus. Just like human eyes, they are just a few inches apart from each other, and they are able to focus on a single image enabling a person to make reasonable judgment and interpretation when it comes to depth perception and the like. 3D glasses also work in a similar version. Two colors red and cyan merge and chromatically create 3D pictures which are superimposed onto each other. The 3D images work perfectly similarly to human eyes. 

The 3D glasses also play a big mind game. The glasses use colors to trick the mind into thinking the image they have created is popping out. Consistently viewing your television or movies using these glasses continues to offer different perspectives to the brain. The final images as interpreted by the mind become clear, incredible, and attractive. The red/cyan colors make the image look magnificent, attractive, and visible.   

Three-dimensional glasses
To begin with, the polarization of light oscillates either vertically, horizontally, or at a particular angle. The light waves travel in one direction where other colors filter out through a polarized filter, letting only one color pass through. Depending on the plane where the polarization has occurred, the human brain is able to interpret different images formed from the original colors of the images. If for instance, the image is viewed at an angle the final image will be affected by the polarization effect and appear tilted as well. 

In summary, 3D glasses are widely being used in print media as a technology that combines red-and-blue lenses to view pictures in motion. With the over-reliance on polarization, 3D glasses are increasing their application to televisions, CDs, and the film industry. Whether you like 3D glasses or not, this is definitely a technology that is here to stay.

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