The color of light depends on the spectrum.
The spectral composition of light color is determined by the type of light, while the spectral composition of object color is determined by the type of light and spectral reflectance or transmittance.
The use of filters can produce colored light, which means that the room can be “colored” without physical changes.
” 01 color light color light color refers to the color emitted by the light source.
Tristimulus value is the expression of the stimulation degree of three primary colors that cause the human retina to feel a certain color.
When colored walls or objects are illuminated with colored light, the interaction between light color and object color is very important.
Complementary colors are opposite each other in the CIE model and combined to form white.
Helsinki, Finland – Tennis Palace Cultural Museum, fromerco Com02 color highlights, color focus light and color background light can change the effect of objects in the room.
The color of com04 light and the higher red component in warm white light make the room look warmer than neutral white light..
The dimension of brightness is not considered here; This means that only the hue and saturation of all colors can be determined in the diagram.
The combination of lights and filters makes the design diverse, and color lights can be used to emphasize or change the lighting effect of a room or object.
In CIE standard colorimetric system, object color and light color are represented by continuous two-dimensional diagram.
Use colored lights to enhance the lighting effect.
The chromaticity effect can be enhanced or changed.
Munsell system in Munsell system, the object colors are arranged according to the standards of brightness, hue and saturation, and a complete color sample directory is generated in the form of three-dimensional matrix.
Due to the chromaticity effect, blue seems to fall back into the background, while magenta stands out.
When the brightness of the background decreases, the color saturation of the object in the foreground increases.
Strong color contrast can increase the brightness contrast, while high brightness contrast will also strengthen the color contrast.
Warm white, neutral white and sunlight white all come from white light.
Mixing light of different colors is called “additive mixing”, also known as “additive mixing”, “positive mixing” or “additive mixing”.
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The center of this area is the lowest saturation point, which is designated as a white or colorless point.
Purple light and yellow green light are mixed to produce white light – purple and yellow green are complementary colors; Blue light and yellow light are mixed to produce white light – blue and yellow are complementary colors; Blue light + orange light are mixed to produce white light – green and orange are complementary colors.
On the whole, people feel that the natural lighting effect is produced by the combined action of warm color and filter color (such as skin color, magenta or amber), or warm color and cold color (such as sky blue and night blue).
The lower the lightness of its composition, the more it is mixed.
The color of an object is determined by the color of incident light and the absorption characteristics of the object surface.
Wall white + column night blue, fromerco Com wall amber + column magenta, fromerco Com wall magenta + column white, fromerco Com wall sky blue + column amber, fromerco Com color key lighting for – Exhibition – Fair booth – sales area Bilbao Art Museum, fromerco Com Buenos Aires Zurich Insurance Company building, fromerco Com Helsinki, Finland – Theatre restaurant, fromerco Com Frankfurt, Germany – 2002 lighting and architecture exhibition, fromerco Com03 color system CIE System International Commission on illumination (English: International Commission on illumination, French: Commission International de I’Eclairage, which is abbreviated as CIE in French) is a non-governmental multi-disciplinary worldwide academic organization composed of light source manufacturing, lighting design and light radiation measurement and testing institutions in the field of international lighting engineering.
The term” color of light “includes white and color light.
Although the two-dimensional image is enough to cover the color of light, the color of the object needs to be defined by the three-dimensional system due to the existence of reflectivity.
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“Color is an important part of visual perception.
The brightness here refers to the reflectivity of the object color; Hue refers to the actual color, while the term saturation refers to the degree of coloring – from solid color to colorless gray scale.
Therefore, the object color must be defined in combination with the color type of incident light.
Similarly, all mixed colors of the two colors can also be found on the straight line between the two chromaticity points in question.
Any saturation level of that color can now be found on the straight line between the colorless point and one of the chroma points in question.
This interaction is the basis of subtractive mixing.
And colored light covers the entire visible spectrum.
In addition to hue, brightness and saturation, the color of an object is also determined by reflectivity or transmittance.
Without sunlight or artificial lighting, we cannot perceive color.
Subtractive mixing refers to the reduction of lightness and purity after the light of different colors is mixed.
The color region is surrounded by a curve on which the chromaticity point of the fully saturated spectral color is located.
Lighting scene 01, fromerco Com lighting scene 02, fromerco Com lighting scene 03, fromerco Com lighting scene 04, fromerco Object color in the absence of light source and dark environment, no object will show its color; Only under light can an object show a certain color.
The type of light color is defined by hue, saturation, and brightness.
The same object presents different colors under different light sources; Different objects under the same light source generally show different colors.
