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Lighting for Interiors > Chapter 6: Color > Flashcards

Chapter 6: Color Flashcards

1
Q

Daylight (White Light) is _____ of the colors

A

ALL

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2
Q

White is perceived when all colors in the spectrum are _____

A

reflected

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3
Q

Black is perceived when all colors in the spectrum are _____

A

Absorbed

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4
Q

color is not a ______ property of things we see

A

Physical

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5
Q

The color of an object or surface is determined by?

A

its reflected or transmitted light

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6
Q

These are all colors of which spectrum?
Green, Blue, Red
Yellow, Magenta, Cyan

A

Light Spectrum

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7
Q

These are all colors of which spectrum?
Red, Yellow, Blue
Orange, Violet, Gree

A

Pigment Spectrum

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8
Q

Spectrum is comprised of ______ ______ of color

A

Different Wavelengths

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9
Q

What is the longest wavelength?

A

Red

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10
Q

No Light = ___ ____

A

No Color

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11
Q

What is the shortest wavelenght?

A

Violet

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12
Q

How do we remember the spectrum colors?

A

as ROY G BIV

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13
Q

If all colors are absorbed but red is reflected. What color are we seeing?

A

Red

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14
Q

If blue gets reflected what color will we see?

A

Blue

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15
Q

What Physiological factors affect color perception?

A

Brain, Eyes, Age of the individual

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16
Q

When a color appears different altered based on a surrounding color this is?

A

Simultaneous Contrast

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17
Q

Subjected perceptions of color can be affected by?

A

Psychology, cultural meanings, and life experiences

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18
Q

Does light have color?

A

No

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19
Q

Do objects have color?

A

No

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20
Q

Where does color reside in a person?

A

The eye/brain system

21
Q

Color is dependent on?

A

the light source and reflectance properties of objects

22
Q

“Color vision” (colored light not pigment) is refered to as?

A

Hues

23
Q

____ ____ tells us that tomatoes are red, grass is green, etc.

A

Color Constancy

24
Q

all light and pigment colors can be grouped into ___ or ____

A

Warm or Cool

25
Q

As most of the lightwaves in cool light will be absorbed by the warm pigment the warm pigment will appear?

A

Dull

26
Q

Warm light ____ warm colors and ____ cool colors

A

Enhances; Neutralizes

27
Q

Cool light ___ Cool colors and ___ warm colors

A

Enhances; Neutralizes

28
Q

All light sources impact the perception of color this is quanitified via 2 methods. What are they?

A

1.Chromaticity or color temperature
(aka CCT: Correlated Color Temperature)
2. Color-rendering index (CRI)

29
Q

Color has a _____

A

Temperature

30
Q

CCT measures with what unit of measurement?

A

Kelvin

31
Q

60,000K will produce what color of light?

A

Brilliant Blue

32
Q

2,800K will produce what color of light?

A

Warm Yellowish White

33
Q

800K will produce what color of light?

A

Heated Bar of Steel (Red Glow)

34
Q

This range of Kelvin is for what type of lamp?
2,600K-3,100K

A

Incandescent Lamps

35
Q

This range of Kelvin is for what type of lamp?
2,700K-7,500K

A

Flourescent Lamps

36
Q

CRI stands for?

A

Color-rendering index

37
Q

CRI measures?

A

how well a light source makes objects appear

38
Q

What is the index range of CRI?

A

0 to 100

39
Q

The higher the CRI number the ___ the color rendering ability of the lamp

A

Better

40
Q

The higher the number in CCT the ____ the color

A

Cooler

41
Q

A CRI of __ should be considered as minimum for most retail applications

A

80

42
Q

Colors light in value have ___ reflectance properties which and reflect ___ light

A

Higher; More

43
Q

Reflectance properties are designated in?

A

Percentages

44
Q

Two samples match under one light source, but not under a different light source can be defined as?

A

Metamerism

45
Q

Profile of color characteristics of lamps correlated with radiant power can be defined as?

A

Spectral-power distribution curves (SPD)`

46
Q

SPD stands for?

A

Spectral-power distribution curves

47
Q

The output of a light source can be characterized by its relative power at each wavelength can be defined as?

A

Spectral Power

48
Q

When information is graphed (power vs. wavelength) we call it?

A

Spectral Power Distribution (SPD)

Lighting for Interiors (15 decks)

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