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What Factors to Look in For While Buying 3D Glasses

A polarized 3D system uses polarized glasses to produce an illusion of three-dimensional images by adjusting the light that enters each eye. To show stereoscopic images and films, two images are projected superimposed onto the same screen or display through various polarizing filters.

Evolution of 3D glasses:

The premature kinds of 3D glasses were not glasses at all. In the mid-19th century, Charles Wheatstone observed that viewing a set of similar (but not exact) photos side-by-side can provide three-dimensionality. Two somewhat isolated cameras take the images. By this process, the photographs simulate what each one of our two eyes would see in reality. However, this method is not perfect. It needs people to "cross" their eyes, which some people cannot do or find challenging. In the late 19th and early 20th century, the stereoscope was developed to address these problems. The stereoscope utilized lenses that blended the two separate images into one, giving the impression of a 3D display without hurting the eyes.

Types of 3D glasses:

Anaglyph: 3D glasses use various colors to produce a binary image that your brain will blend into a single image. Anaglyph glasses are the standard blue and red styles that have been around since the mid-20th century. No power sources are needed for them to work. Polarized: 3D glasses use several kinds of polarization in each lens so that each eye only sees one of the superimposed images. Polarized 3D glasses also don't need any batteries to work like anaglyph.  Active shutter: These glasses use battery power to perform the illusion of three dimensions. They only work with specific projectors or television sets. The lenses flash on and off in an alternative pattern, so you can only observe the image through one eye at a time.

How do 3D glasses work

It’s easy to see the attraction of 3D. Both mesmerizing and astonishing, 3D glasses let viewers become part of the action and view images as if they were falling right off the page. But how do 3D glasses work? It’s not magical if that’s what in your mind! To start, it helps to understand what you’re seeing. A 3D image is one that has two separate viewpoints of the same image superimposed on each other. You can name it as an anaglyphic image. Using 3D anaglyphic glasses, each eye cleans chromatically contrasting colors (usually red and cyan) to produce a 3D eye-popping image. When you look at a 3D image via 3D glasses, your brain uses a method called stereoscopy to produce the illusion of depth. Remember how two images from two different viewpoints made a single anaglyphic image? Your mind uses these two different images and prepares them so that the image seems to “pop” out. 3D glasses recreate what your own eyes do every day! It’s almost like you’re fooling your brain!

Features to look in for 3D glasses:

Let's take a look at the features of 3D glasses in more details: Size: If you want to buy the best 3D glasses, don't go for "one size fits all" models. Look for glasses that have both grown-up and children's sizes. It is best for your convenience, but it also makes for a more enjoyable watching experience if the lenses are comparable to your eyes' viewpoint. Battery: For active shutter 3D glasses, battery life is an essential part. Moreover, rechargeable batteries are superior to disposable ones -- it ends up saving you time and money in the lengthy sessions. Clip-on design: Some (usually passive) 3D glasses arrive in a clip-on design. These glasses are lightweight and work excellent for those that already use prescript glasses. It’s pretty uncomfortable to wear conventional 3D glasses over a pair of prescription glasses. So, if you're exhausted from trying with two sets of lenses, prefer a set of clip-on 3D frames. Power-save mode: If you have a set of 3D glasses with power-save mode, you don't need to worry about losing battery life if you don't turn them off. The power-save method identifies when you are not using glasses and shuts them off until they're needed. Price: Most 3D glasses have prices between $2 and $25 each. For around $2, 3D glasses usually are anaglyph glasses that are built from cardboard. For $10 each, you can buy more modern polarized glasses, comparable to those used in many IMAX theaters. At around $25, 3D glasses are usually active shutter glasses that need a power source.

Top 5 best 3D glasses:

Let's take a look at the top 5 best 3D glasses available in the market.

  1. 3D heaven ultra-clear HD: The rechargeable 3DHeaven Ultra-Clear HD is invented to work with all DLP-Link projectors to get high-quality cinematic experiences, whether you have one from Sharp, Samsung, ViewSonic, or many other best names in the market. Its price is $27.
  2. Elephas Ultra-Clear HD Rechargeable: The smooth, minimal, Elephas Ultra-Clear HD Rechargeable should work just excellent with almost all modern DLP-Link projectors, so order them as a substitute or extra pair and enjoy the appliance you already have. They have an LED pointer to show their battery state. Its price is $28.
  3. Sintron ST07-BT: With support for TVs from Sony, Samsung, and Panasonic and projectors made by Epson, the Sintron ST07-BT is best for systems using either Bluetooth or RF technology. They seem a little boxy but are among the most convenient choices. Its price is almost $40.
  4. Goswot 144Hz: If you want a cheap substitute or to provide a large group, look to the exceptionally affordable Goswot 144Hz, which works with the broad types of projectors using the DLP-Link protocol. Unlike some, they aren't too big, though they don't give the widest field of view. Its price is nearly $14
  5. XPand X105: If you have a more traditional infrared-based screen or a more modern IR transmitter, the XPand X105 may be the best option. Their weight is minimal and, as a result, should rest comfortably during long movies, even if you also use prescription eyeglasses. Its price is $37.

Name: Samira H. Revised Date: 11-08-2020

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By Saha on October 19, 2021

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