Submitted By :-
SACHIN MEHRA
ROHIT SHARMA

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Television evolved
Lcd,plasma (155 cms),hdtv
1922 release –”the power of love”
1950-dozens of b movies,
Want of producers for people to move to theaters.
Installation of vibrating plates in theater seats to stimulate electric shocks.
Goofy glasses are pretty tame.
Not a great impact.
Telivision episodes,specials on 3-d
popular exhibits at the 2009 Consumer Electronic Show
An object in real world looks 3-d , but why the same object looks flat in tv?
It all has to do with the way we focus on objects .
our eyes absorb light reflected off of the items
Our brains interpret the light and create a picture in our minds
Two cases:
object is far away, the light traveling to one eye is parallel with the light traveling to the other eye.
object gets closer, the lines are no longer parallel -- they converge and our eyes shift to compensate.
Focusing an object
brain takes into account the effort it required to adjust your eyes to focus on it as well as how much your eyes had to converge. Together, this information allows you to estimate how far away the object is.
secret to 3-D television and movies
showing each eye the same image in two different locations, you can trick you brain into thinking the flat image you're viewing has depth .
Means different convergence& focal pts. While your eyes may converge upon two images that seem to be one object right in front of you, they're actually focusing on a screen that's further away.
4 most common 3-d tv technologies
How it shows
How does a 3-d tv works
One has to produce two separate, moving images and send one of them to the viewer's left eye and the other to the right. To give the proper illusion of 3D, the left eye's image mustn't be seen by the right eye, while the right eye's image mustn't be seen by the left.
Anaglyph glasses
Polarizing lenses
Active and passive shutters