It is best to use compressed air in order to clean the Optoma's color wheel to prevent doing any damage. There are tutorial videos online that you can watch and learn step-by-step.
All projectors can play movies from your laptop, but for the best results get a projector with a quick color wheel to avoid the rainbow effect.
There could be a number of reasons why your projector is only displaying a white light. It could be due to a loose or faulty connection, a problem with the projector's bulb or color wheel, or an issue with the input source. Try checking the connections, replacing the bulb, or troubleshooting the input source to see if that resolves the issue.
Overhead Projector
Until they're able to get rid of the spinning color wheel inside those sets, I wouldn't recommend you purchase a DLP set, regardless of how great the picture looks.
Overhead projectorOverhead Projector
There is no antonym for color wheel.
Primary, secondary, and tertiary colors in the color wheel.
Metallic colors do not appear in a color wheel.
The opposite of gold on the color wheel is purple. Gold is a warm color, while purple is a cool color, making them complementary colors on the color wheel.
There are different color wheels there is a three color color wheel which is red,yellow,blue
Any projector will work well, but for DLP projectors consider getting a "proper" one with a quick-spinning color wheel, otherwise you may notice some "rainbowing."
What related colors on the color-wheel