2006-07-08 08:55:49 · 4 answers · asked by aa 2 in Consumer Electronics ➔ Other - Electronics
RGB is the color the guns shoot through the screen before it goes onto the glass in front of you. It is a Phosphorous gas. The GAS when bombarded with ions... looks White
EDITED; RGB all together are black
2006-07-08 09:06:52 · answer #1 · answered by Big Hoss 2263 2 · 0⤊ 0⤋
Big Hoss 2263 said:
"RGB is the color the guns shoot through the screen before it goes onto the glass in front of you. It is a Phosphorous gas. The GAS when bombarded with ions... looks White
EDITED; RGB all together are black"
A c.r.t. isn't full of gas. It is evacuated.
The screen has three phosphors, each glowing a different colour when excited by an electron beam.
When all three phosphors are excited to the correct degree the resultant colour is white. (This is light addition, not subraction as happens with paint.
To get a black screen all the guns are turned off and therefore none of the three phosphors are excited.
2006-07-08 14:09:09 · answer #2 · answered by dmb06851 7 · 0⤊ 0⤋
truly how does a cathode ray tube make white when it passes through a three color filter perhaps is shoots so many electrons at such a brightness as to nullify the color filter
2006-07-08 09:44:33 · answer #3 · answered by abramelin_the_wise_mage 3 · 0⤊ 0⤋
by combining the 3 primary colors red, green and blue
2006-07-08 09:01:00 · answer #4 · answered by kc2irv 4 · 0⤊ 0⤋