How Do 3D Glasses Work? - Instant Egghead #22 

me too

@@Galvin2900 Me too.

do they really work?? i am thinking of getting one

@@marcus.the.younger Yeah totally. There's varying quality in the art *itself* of course. Or movie or whatever.

Do they work?????

it has autostereoscopic

i think so prem.

yes! because it has to do with binocular disparity, basically the fact that we have two eyes that are in different places and see different things

yep...

A one eyed person will actually have a very difficult time to visualise 3D images in real life. Majority of the time their world is 2d

@@overkillking2602 :)

Technically, but there wouldn’t be any double vision and that’s it.

No. They wouldn't work.

you are wrong why do you think green glass lets through green light

Mason Webster Any lense can see green light

I used to think this too, but you are incorrect. It's counterintuitive, but the red lens sees the red image. If you think about it, it is a red filter. It only looks red BECAUSE it's only letting red light through.

I have been looking for a good explanation of this. Apparently it's not quite so simple. When you read black text on a white screen (like this), the white space is the light that reaches your eye, and the black letters actually emit no light. Similiarly, when you look through a red lens at an anaglyph 3d image, the red light is what reaches your eye (which is indeed why the lens looks red!). However, you're not seeing the red image, since it's lost in all that other red reaching your eye. It's the cyan image, which doesn't contain any of the red light being filtered through to your eye, that you actually make out through the red lens! The cyan image looks dark and defined, standing out precisely because most of the light coming from it it /doesn't/ reach your eye. (similar to the black text). I hope that makes sense (and that it's accurate)!

@@AcmSpud I think you may be right. I keep going back and forth on this. A professor explained to me why we are wrong and pointed out the red light thing but the more I think about it the more I agree with you.

But I was struggling doing it.

because the two screens are not the same. Anyway, I still manage to get the third image with colors

Its recorded twice with 2 cameras and one lens can only take in 1 of the recordings so imagine red and blue 3d glasses but with no colour changes

it makes me dizzy

Yeah.

you try wearing 3d glasses with one eye I feel like Leela from Futurama that one episode she goes to a movie theater tries putting them on and says mine don't work

Red/Cyan is the best for me, because shutter-3D makes my head hurt!