Glasses convert headache-inducing 3D movies into glorious 2D
Despite the current proliferation of 3D movies, cameras, televisions and mobile devices, there are those of us who still question whether 3D is here to stay, or if it's just a marketing gimmick that will eventually peter out. One thing's for sure: with current technology, the viewing of 3D movies gives some people headaches, or makes them feel dizzy. If you're one of those people, but you don't want to be left out when your friends go off to see My 3D Dinner With Andre, this might be just what you need - De-3D glasses.
In a typical 3D movie, there are two overlapping images on the screen. Wearing 3D glasses allows one of those images to be seen by each eye, instead of both images being seen by both eyes, creating a stereoscopic three-dimensional effect.
The De-3D glasses work by taking the image intended for the right eye, and delivering it to both eyes. The system is said to work in any cinema that uses Real 3D technology.
You can purchase the glasses online from ThinkGeek, for US$8.99. Now, if only they could find a way of converting surround sound into mono ...
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The local theaters, by the way, have had enough complaints about 3-D movies that they generally now show 2-D versions of movies with a 3-D release. I, personally, don\'t have an issue with 3-D unless it was filmed in 2-D and then converted to 3-D. When they do that, there are always artifacts. Those artifacts ruin the movie for me. Marketing those as 3-D is, in my mind, false advertising.
So if you have several pairs of the glasses, get some other cheap frames and try cutting the left or right lens from two pairs down to fit, or try flipping the left or right lens over.
One thing circular polarized glasses are useless for is making light effects with a laser beam. Lasers go right through with no visible effects. A laser through a single linear polarized filter makes diffraction lines. Cross two linear filters and a laser makes diffraction dot patterns. I learned that from a late 1970\'s or early 1980\'s issue of Scientific American that had an article on DIY laser light show equipment, including how to build a mercury vapor laser tube from scratch.