Real-D Polarization (1)

Real-D 3D glasses, used for 3D movies such as Avatar, work by taking circularly polarized light from the screen, giving it a phase shift to make it linearly polarized and finally with a pair of linear polarizers splitting the image so each eye sees a different image. Light from the laptop LCD screen is linearly polarized, therefore the effects of the glasses can be tested on it. When holding the glasses forward, the light hits the wave retarder first, giving the light a phase shift, making it circularly polarized and preventing the linear polarizers from blocking any light. Colours change due to imperfections in the material. When held backwards, the light hits the linear polarizers first and is extinguished at the proper angle. Also of note is that both lenses have the same angle of polarization, as both extinguish at the same time.

Category:

Science & Technology

Tags:

• reald
• polarization

[icycoolstudios]

ive noticed in the theatre if you wear real d 3d glasses backwards white is green tilt the lenses white is purple

[JamMastaJam]

@MultiTheBest88

Its not a 3D PC. All LCDs use polarized light, although more as a byproduct then through necessity (just by how LCD works).

Multi, don't be a cunt, doesn't work for every light (won't work for generic lightbulbs or the sun for example, because the polarization of that light is random.

[MultiTheBest88]

its not a 3d pc dumass it does for everything that has light

[Lucas220663]

have you got a 3d pc ?