#UNPOLARIZED LIGHT OF INTENSITY EQUATION MOVIE#

These are cheap: thin, plastic, configured in a way so that it only lets light through Polarizer that, for instance, only lets through Through in one orientation, so you're going to have a That lets light through, but it only lets light So how could you polarize this light? Let's say you wanted Way the electric field's going to be pointing. Might be pointing this way, at some later point it's The electric field's going to be hitting yourĮye at from a random source. Is, at any given moment, you don't know what direction These up to get the total, and they might not all be the same value. That's got that direction, you got light that's got this direction, you got light in all these directions at any given moment. The light, hitting you eye, you can get some light So if we draw this case for a light bulb, just a random incandescent light bulb, you might get light, some of

Polarized in any direction, all at once, all overlapping. Old incandescent light bulb, this thing's hot.

That's coming from the sun, straight from the sun. Most light that you get is not polarized. How could you ever have 'a light ray that's not polarized?' Easy. There's only one direction that the electric field is oscillating in. Oscillates like that, that also polarized. Oscillating like this, where the electric field Like this, if we had it coming in diagonal, this light ray that's Have this wave polarized along any direction. Up or down, that's oneĭirection - vertically. Where the electric field is only oscillating in one direction. Values, but I'm only going to see electric fields that point up or down. To see electric fields that either point up orĮlectric fields that point down. What would my eye see? Well, my eye's only going Straight down that line - and then up and down is up and down, and then left and right, that direction I have the magnetic field, would be this way and that way. Middle, this is this line - so imagine we're looking Your eye, or a detector, over here, what would you see? Well, if I draw an axis over here, and this point here, in the So what does polarization mean? Polarization refers to theįact that, if this light ray was heading straight toward Just know the direction of the electric field when weįocus on the electric field. Messy if I try to draw both the electric and magneticįields at the same time. Would point at a right angle to the electric fields. It's hard, on something two-dimensional, but you can kind of imagine those looking something like this. There's got to be magneticįields there, as well, that are changing. We know there's not just electric fields. Let's talk about polarization of light. One image is made from clockwise polarized light and the other is made from counter-clockwise polarized light.

#UNPOLARIZED LIGHT OF INTENSITY EQUATION MOVIE#

If you look at the projector of a 3D theater, you will see that they are projecting two separate images to the movie screen. This allows for all colors to reach our eyes and creates a much better viewing experience. Instead of using color filter glasses, now we use polarized glasses where one lens is circularly polarized clockwise (only allows clockwise light through) and the other lens is circularly polarized counter-clockwise (only allows counter-clockwise light through). The red/blue filter works but the problem is the colors of the image will be only shades of red/blue which is not visually appealing. In order to accomplish this with a 2D screen, you need to be able to create a different image for each eye and offset them to force you eyes to change focus to make the images line up (the larger the offset, the closer the image will appear). The way to see something in 3D is your eyes need to be able to focus at different depths to see the image (a 2D screen just has one depth).

Unpolarized light of intensity equation