Color in Light Illumination
Types of Light Incandescent Light (white light): “the illumination resulting from the glowing of a heated filament”
Types of Light (cont’d) Fluorescent Light: “the illumination produced by a tubular electric discharge lamp; the fluorescence of phosphors coating the inside of a tube” –warm white; warm color; cool white
Dimensions Hue: “the property of a color from which it is distinguished from other colors” Brilliance: “brightness; the quantity of illumination passing through a color transparency
Dimensions (cont’d) Saturation: “a visual aspect indicating the vividness of the hue in the degree of difference from a gray of the same lightness”
Methods of Mixing Additive Method: “white light can be produced by the mixture of the 3 primary hues: red, blue and green –the complement of any primary hue is the mixture of the 2 remaining primary hues (the complements are secondary hues)
Methods of Mixing (cont’d) The secondary hues of the additive method are the primary hues of the subtractive method.
Methods of Mixing (cont’d) Subtractive Method: “involves filtering out various colors in the illumination by using different colors of transparencies”
Methods of Mixing (cont’d) The primary hues of the subtractive method are the secondary hues of the additive method.
Effect of Colored Light on Colored Objects Colored light: “illumination of an identifiable hue” Emphasis: “using the same color of light as the color of the object”
Effect of Colored Light (cont’d) Absorption: “the process of taking in, as in a colored object which absorbs certain rays of light and reflects other rays giving the object its recognizable color”
Effects of Colored Light (cont’d) Conversion: “the color of an object being converted or completely destroyed when one color of illumination strikes an object of a completely different color”