3D glasses provided by the cinema is very light, did not see the battery, two black plastic lenses, but do not feel bright, it is not on the battery or the battery is dead?
There are two kinds of cinema, one is polarized, without batteries, and the other is the shutter type that needs batteries. A shutter type battery that must have a battery. You may not know where it is.
The movie is not 3D two camera glasses show role is the image of a camera image caused by shielding his eyes received different form 3D effect see principle of high school physics polarizer can see
Now 3D technology is divided into 3 kinds,You look at the cinema is color 3D, glasses are red, blue, blue, red, red, green, these several, the lowest cost of this kind of glasses, but the worst effects of the film 3D. Is the lowest level of 3DNext is the partial positive light type 3D, which is the SKYWORTH TV, also known as non flash 3D, glasses are partial positive light, usually can also be replaced, like gray sunglasses. The cost is higher than the color difference, cheaper than the next.The last is the flash 3D, the most expensive, you said the battery, is the use of the,Well, the 3 kind of talk, I repeat the principle,The color is 3D, red and blue film, blue eye, left eye, the left eye can only see the red figure, the right eye can only see the blue map, and then mix in the brain, the synthesis of 3D image you can see, this is the color film, 3D effect is very poorPolarized light 3D is Toury while there are 2 images, one is the 111, one is Kennedy IIIII, is cross eye to see diagram, right eye is hard, and then mix in the brain, because not flash, so called flash 3D, the 3D effect is good do not hurt the eyes. It's the most popular now,Finally, the flash test 3D, the principle is left eye when looking at, the right eye is black, invisible. Right eye view, left eye is black, can not see. Is the left eye right eye flash, flash, so called flash, he used the glasses to complete the flash, so the glasses to use the battery, it is caused by the weight ratio of pianzheng glasses, the color to be heavy, the cost is expensive,In general, the effect of color difference is too poor, flash flash flashing, bad eye, so partial light is now the mainstream 3D Technology
