Color In Light Flashcards
How colored light is obtained
Placing a transparency before a white light
Painted bulbs
Inefficiency of color filters
Much of the wattage of a white bulb is lost (absorbed) in passing through a coloring agent
Vivid hues
Transmit only a small percentage of the light and absorb the rest
Pale tints (unsaturated colors)
Transmit a greater percentage of the light
Effect of incandescent light on cosmetics and the environment
High in yellow
Favorable to most cosmetic colors
Better for highlighting fabric textures and woodgrains of caskets
Downward thrust
Effect of fluorescent light on cosmetics and environment
Gives more illumination but lacks the downward thrust
The color of some objects they illuminate appear dull and faded
High in green and blue but lack adequate red
Measurements of colored light
Additive
Dimensions of colored light
Hue
Brightness
Saturation
Hue
The name of the chromatic color measurable in microns
Brightness
AKA Brilliance
Dependent on the quantity of illumination passing through a color media
Fully saturated color
Hue is pure and vivid
Complementary hues
When 2 complementary hues are both directed toward the same surface the wave lengths mix to form white light
Unsaturated color
Results when there is an excess of one of the complements and very little of the other
Additive method of mixing colored light
Wave lengths add together upon the surface
White light can be produced by the mixture of the
Three primary colors
Primary colors of light
Red green blue
Correct mixture of the primary hues can form
every other hue
Secondary hues of light
Yellow, blue green, magenta
Secondary hues of the additive method are the
primary hue of the subtractive method
The primary hues of the subtractive method are the
secondary hues of the additive method
Equal mixture of these produce white
Complement
This involves the diminution of the wave the wave lengths of light
Subtractive method
Reduction can be gradually extended to a point where a complete
blackout results
Application of subtractive method
One light source with two or more filters
Primary hues for subtractive method
Yellow, magenta, blue green
The hue of an object appears more vivid when seen under the same hue of illumination
Emphasis