Color in Light Flashcards Preview

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Flashcards in Color in Light Deck (35):
1

  • Placing a transparency before a white light.
  • Painted bulbs

How Color in Light is Obtained

2

Much of the wattage of a white bulb is absorbed in passing through a color agent.

  • Selective Trasnmission and Absorption

Inefficiency of Color Filters

3

Transmit only a small percentage of the light and absorb the rest.

Vivid Hues- Selective transmission and absorption

4

Trasmit a greater percentage of the light.

Pale Tints (Unsaturated Colors)- Selective transmission and absorption.

5

  • 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.

6

  • 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

7

  • Hue
  • Brightness
  • Saturation

Measurements of Colored Light

8

The name of the chromatic color measurable in microns.

Hue

9

Dependent of the quantity of illumination passing through a color media.

Brightness (Brilliance)

10

  • Fully saturated color
  • Unsaturated color

Saturation

11

The hue is pure and vivid.

 

Fully Saturated Color

12

When 2 complementary hues are both directed toward the same surface the wave lengths mix to form white light.

Complementary Hues- Saturation

13

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

14

  • Additive
  • Subtractive

Methods of Mixing Colored Light

15

Wave lengths add together upon the surface.

  • White light can be produced by the mixture of the three primary hues.

Additive

16

  • Red, Green, Blue
  • Correct mixture of these primary hues can form every other hue.

Primary Hues of The Additive Method

17

  • Yellow, Blue-Green (cyan), Magenta 
  • Are made by projection of equal strengths of pairs of primary hues.

Secondary Hues- Additive Method

18

Secondary hues of the additive method are the _____ hues of the subtractive method.

Primary

19

Equal Mixtures of these in the additive method produce white.

Complements

20

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

21

Absence of any illumination.

Black-Out

22

One light source with two or more filters.

Application of The Subtractive Method

23

  • Yellow
  • Blue-Green (Cyan)
  • Magenta
  • These are the secondary hues of the additive method.

Primary Hues of the Subtractive Method

24

  • Emphasis
  • Absorption
  • Conversion

Effect of Colored Lights on Colored Objects

25

The hue of an object appears more vivid when seen under the same hue of illumination.

Emphasis

26

When two values or intensities of the same hue are present (and the same hue in illumination strikes them) the larger area appears more vivid while the smaller, more "washed-out."

Absorption

27

If the hue of an object and the illumination differ, the color of the object with either be converted into a different color or be obliterated.

Conversion

28

  • Green + Blue Light = Cyan
  • Red + Blue light = Magenta
  • Green + Red light = Yellow

Additive Color System

29

Cyan + Magenta + Yellow = Black

Subtractive Color System

30

In the subtractive color system, this absorbs red light, reflects green and blue light.

Cyan

31

Absorbs green light, reflects red and blue light.

Magenta

32

Absorbs blue light, reflects red and green light.

Yellow

33

Absorbs green and blue light, reflects red light, appears red.

Magenta + Yellow

34

Absorbs red and blue light, reflects green light, appears green.

Cyan + Yellow

35

Absorbs red and green light, reflects blue light, appears blue.

Cyan + Magenta