Provided by Rhett Alleyne
But what about colors from a video projector? They essentially do the same thing. However, instead of a bunch of small RGB lights, it projects RGB colors to different locations on the screen.
project black
Now you’re ready for some fun! How does a video projector emit black light? There will be no black light Any As we saw before, light. How do you not project anything? First, let’s think about a screen like a TV. If you have three small lights (red, green, and blue), you can create a small black dot by simply turning off all three colored lights in that area. Boom, it’s black!
So, can you make it black just by turning off the projector? That can’t be true, right? If so, you won’t be able to tell the difference between the projected black color and the screen, even if the projector is not powered on. Yes, that’s exactly right.
Check it out: In the image below, we are projecting a slide that is half black and half white. The slide takes up most of the screen.
