Color in Light Flashcards
(35 cards)
- Placing a transparency before a white light.
- Painted bulbs
How Color in Light is Obtained
Much of the wattage of a white bulb is absorbed in passing through a color agent.
- Selective Trasnmission and Absorption
Inefficiency of Color Filters
Transmit only a small percentage of the light and absorb the rest.
Vivid Hues- Selective transmission and absorption
Trasmit a greater percentage of the light.
Pale Tints (Unsaturated Colors)- Selective transmission and absorption.
- Is high in yellow
- Is favorable to most cosmetic colors
- When compared to flourescent light, the white bulb is better for highlighting:
- Fabric Textures
- Wood-grains on caskets
- Lamps with this light have a downward thrust lacking in fluorescent lamps.
Effect of Incandescent (White) Light on Cosmetics and the Environment.
- Give more illumination but lacks the downward “thrust” of incandescent bulbs.
- The color of some objects they illuminate appear dull and faded.
- Is high in green and blue and lacking in adequate red.
Effect of Fluorescent Light
- Hue
- Brightness
- Saturation
Measurements of Colored Light
The name of the chromatic color measurable in microns.
Hue
Dependent of the quantity of illumination passing through a color media.
Brightness (Brilliance)
- Fully saturated color
- Unsaturated color
Saturation
The hue is pure and vivid.
Fully Saturated Color
When 2 complementary hues are both directed toward the same surface the wave lengths mix to form white light.
Complementary Hues- Saturation
Results when there is an excess of one of the complements and very little of the other.
- Example: Pink- is a large amount of red with a small quantity of its complement.
Unsaturated Color
- Additive
- Subtractive
Methods of Mixing Colored Light
Wave lengths add together upon the surface.
- White light can be produced by the mixture of the three primary hues.
Additive
- Red, Green, Blue
- Correct mixture of these primary hues can form every other hue.
Primary Hues of The Additive Method
- Yellow, Blue-Green (cyan), Magenta
- Are made by projection of equal strengths of pairs of primary hues.
Secondary Hues- Additive Method
Secondary hues of the additive method are the _____ hues of the subtractive method.
Primary
Equal Mixtures of these in the additive method produce white.
Complements
Involves the diminution (subtraction) of the wave lengths of light.
- Reduction can gradually extend to a point where a complete black-out results.
Subtractive Method
Absence of any illumination.
Black-Out
One light source with two or more filters.
Application of The Subtractive Method
- Yellow
- Blue-Green (Cyan)
- Magenta
- These are the secondary hues of the additive method.
Primary Hues of the Subtractive Method
- Emphasis
- Absorption
- Conversion
Effect of Colored Lights on Colored Objects
