How Do 3D Glasses Work?

Your eyes are slightly apart so take in 2 different images which the brain puts together to create a 3D image. On the screen of a 3D film, there are 2 images, the Glasses are shaped to merge those images to create a 3D one.

3D glasses operate by ensuring that each of your eyes sees a slightly different image. Try covering your left eye and seeing how the room looks, then without moving cover your right eye instead and again observe the room. Notice how the images between your eyes are from slightly different angles? Your brain is able to fuse these images into one, which you percieve as three-dimensional sight. 3D glasses allow you to look at a screen that displays two images stacked on top of one another, with the lenses of the glasses only allowing your eye to see the image that is intended for it. With Anaglyph glasses (the red and blue lenses), the color of the lens determines which of the two images your eye sees. With polarized lenses, light polarized in a specific direction is blocked, again only showing the correct image to each eye. 3D televisions are theoretically possible if you used a projection screen, but the biggest problem there is that they would be prohibitively expensive. There's not a large enough market for 3D televisions to make it worthwhile to produce.

In order to see things in 3D each eye must see a slightly different picture. This is done in the real world by your eyes being spaced apart so each eye has its own slightly different view. The brain then puts the two pictures together to form one 3D image that has depth to it. Since your eyes are about two inches apart, they see the same picture from slightly different angles. Your brain then correlates these two images in order to gauge distance. A 3D film viewed without glasses is a very strange sight and may appear to be out of focus, fuzzy or out of register. The same scene is projected simultaneously from two different angles in two different colors, red and cyan (or blue or green). Here's where those cool glasses come in the colored filters separate the two different images so each image only enters one eye. Your brain then puts the two pictures back together.

3-D glasses blend the picture together to see the object. the only way for something to be 3-D is for the film to have 2 images of the same object overlapping. one image is a bit off to the side though. so when you look in the glasses it blends it together and it looks like a 3-D object. there's not 3D TV's because every program would have to broadcast and be filmed with 2 cameras. the blended together with the glasses.

its the pixels with drawn into the plastic...the 3D movies if seen and tried with out the 3D glasses you usualy see it blury as if theres 2 of everything...thats becasue the pixels are aranged to show another 3rd demension according to the tape or CD...there fore you cant do it with a 2D tv and no 3D glasses...let me get to the point...the glasses carries the shades and thickness to make the 3D demension available to the eyes. And if they deside making 3D TVs then i guess all the 3D movies are out of buissnuiss right? Haha well thats unless they make the TVs.But that sounds like a lil into the future type inventions dont you think...yea maybe theyre working on it...inventions sometimes takes years.

Far as I know, a lot of 3D glasses use polarising glass at 90 degrees to each other, so light of specific polarities can enter each one. One can purchase 3D monitor arrangements, but they're expensive. Probably because there's low demand for them. Also it would require extra storage as 2 slightly different images are being recorded, and everyone would need a pair of glasses. On top of that, it'd not be compatible with existing equipment (you'd need a 3D player and TV), and it would need a special technology to build it (e.g. 2 screens or an extra polarising layer).

There actually are 3D TV's available for purchase. But you have to buy the 1080p full resolution 3D glasses seperate for $50 each and buy this special program to convert the tv to be able to show the tv shows in 3D. The TV itself, is 3D ready, however. and i dont know how them glasses work

that would be expensive and will take plenty of time to do. 3d works by only using 3 colors; red,green,blue idk how the glasses work but i guess the film that the glasses are made with have sum special thing to it that projects whats on the screen which is the 3 colors

making 3 D is hard to do. the red and blue glasses combined with the small red and blue lines on the screen somehow react with your eyes and create an illusion that the picture is popping out at you. i'm just guessing on all that, but its my best guess.