I know how old 3D glasses work, but I want to know why they were blue and red rather than two other colors opposite on the color wheel. My guess is that red and blue cellophane or inks were cheaper when the technology/technique was developed, but that’s only a guess. (I know how 3D glasses work and only want to know why those particular colors were popular or nearly universal.)
In: Technology
Color TV has Red, Green, and Blue. The human eye has an extremely good sense for anything green, while both red and blue are a bit worse in their perception, but on the same level.
Green and orange would be a horrible idea. On one hand, you have a color that comes “pure” out of the screen and to which you are highly sensitive, on the other hand you’ve got a mix of all three TV colors, for which your sensitivity is lower. And, as you need green to mix this orange, the orange pic “bleeds” into the green one, too.
That’s why 3D glasses are blue and red: Primary colors on the TV to which your eyes are equally (low) sensitive.
Latest Answers