Tip:
Highlight text to annotate it
X
certainly has not been long time since you a glasses and see a movie where object looks like real
en 3D
How do these glasses to fool our brains and see something like three-dimensional?
How do 3D movies work?
mechanism is that our vision works like our auditory system, stereo
that is, the brain takes two subtly different images and forms a single three-dimensional image
our left eye sees an image that is slightly different from that seen by the right eye
this is by having the separation between them (pupillary distance)
You can see this effect if you put your thumb in front of you and see how other view seems to jump first with your right eye only and then only with the left
you'll also notice that it is difficult to say how far or close it.
this is because, unbelievably individually because each eye sees the flat world, 2D
if we cover one eye then it will perceive the world in three dimensions with the proviso that if what we're seeing what we have seen before
because our brain would remember and be able to reconstruct the information from one eye
The world in 3D
with both images the brain combines the information ...
to give a three-dimensional image which we see depth with a triangulation process
3D movies mimic what the vision showing the image to each eye would normally see when an object is observed in the real world
shown to the left eye a slightly different image to the one shown to the right eye
so the glasses, to help filter the different images
one of the first 3D glasses did this by showing each eye a different color image
the most used were red and blue
in other words a lens lets pass only light blue and the other red one
thus gave deep brain combining two images
the problem lies with these glasses is not full color and tired pretty fast
then he began to use a particular type of lenses that filter out certain waves
a lens let the waves are strictly horizontal while the other one passes the vertical
This characteristic of the direction of the linearly polarized waves is called
this mechanism is able to give each eye a suitable image to see the object in three dimensions and full color
the drawback of being arises lenses when the head is tilted
for example, the vertical lens wave filter begins to reject horizontal waves and three-dimensional effect is lost
to solve this problem is currently used lenses polarize light in different directions
a lens lets through only waves in favor of the clock hands
and the other of which is against
this way when you turn your head you can see the 3D effect
Have a question you want to respond, raised in the comments and subscribe for more weekly videos