Experiment No: 02
Experiment Name: Explain additive theory of color
(light theory of color) and color wheel diagram.
Additive theory of color (Light theory):
The additive color system involves light emitted directly
from a source, before a an object reflects the light. The additive reproduction
process mixes various amount of Red, Green and Blue light to produce other
color. Combining one of these additive colors with another produces the
additive secondary colors, cyan, magenta and yellow combining of all three
primary colors in same amount produces white color. Television and computer
monitors create colors using the primary colors of light. Each pixel on a
monitor screen starts out as black. When the red, green and blue phosphors of a
pixel are illuminated simultaneously the pixel becomes white. This phenomenon
is termed as additive color system.
To illustrate additive color, imagine three spotlights, one
red, one green and one blue focused from the back of an eyes arena on sclera in
an eye.
Where the blue and green spot lights overlap the color cyan
is produced, where the blue and red spot lights overlap the color magenta is
produced, where the red and green spot lights overlap, the color yellow is
produced. But when added together red, green and blue lights produce white.
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