Color In Light Flashcards
How colored light is obtained
Placing a transparency before a white light
Painted bulbs
Inefficiency of color filters
Much of the wattage of a white bulb is lost (absorbed) in passing through a coloring agent
Vivid hues
Transmit only a small percentage of the light and absorb the rest
Pale tints (unsaturated colors)
Transmit a greater percentage of the light
Effect of incandescent light on cosmetics and the environment
High in yellow
Favorable to most cosmetic colors
Better for highlighting fabric textures and woodgrains of caskets
Downward thrust
Effect of fluorescent light on cosmetics and environment
Gives more illumination but lacks the downward thrust
The color of some objects they illuminate appear dull and faded
High in green and blue but lack adequate red
Measurements of colored light
Additive
Dimensions of colored light
Hue
Brightness
Saturation
Hue
The name of the chromatic color measurable in microns
Brightness
AKA Brilliance
Dependent on the quantity of illumination passing through a color media
Fully saturated color
Hue is pure and vivid
Complementary hues
When 2 complementary hues are both directed toward the same surface the wave lengths mix to form white light
Unsaturated color
Results when there is an excess of one of the complements and very little of the other
Additive method of mixing colored light
Wave lengths add together upon the surface
White light can be produced by the mixture of the
Three primary colors
Primary colors of light
Red green blue
Correct mixture of the primary hues can form
every other hue
Secondary hues of light
Yellow, blue green, magenta
Secondary hues of the additive method are the
primary hue of the subtractive method
The primary hues of the subtractive method are the
secondary hues of the additive method
Equal mixture of these produce white
Complement
This involves the diminution of the wave the wave lengths of light
Subtractive method
Reduction can be gradually extended to a point where a complete
blackout results
Application of subtractive method
One light source with two or more filters
Primary hues for subtractive method
Yellow, magenta, blue green
The hue of an object appears more vivid when seen under the same hue of illumination
Emphasis
When two values or intensities of the same hue are present, the larger area appears more vivid while the smaller, more washed out
Absorption
If the hue of an object and the illumination differ, the color of the object will either be converted into a different or be obliterated
Conversion
Direct lighting
Refers to the movement of light rays in a straight line from the light source
Creates a sharp shadows
Intensifies the contrasts of light and dark areas
Emphasizes source detail
Point Lighting
Point lighting is supplied by
Incandescent lamps Flood lights/spotlights Chandeliers Wall pendants Panel lights Luminous light boxes
By placing a diffusing apparatus upon a point light, the light rays bounce against it and the direct path is altered to become semi diffused
Semi diffused light
Semi-diffused lighting modifies
the contrasts of light and dark areas
Cast shadow is barely discernible
The light rays are scattered in all directions in all directions from the light source
Diffused (flat) lighting
Generally identified as indirect lighting such as when light is bounced off the ceiling or walls
Diffused (flat) lighting
Equally illuminates little contrast between light and dark areas
No real shadow is cast
Diffused (flat) lighting
Floor lamps used for funeral settings
Torchiere lamps
Two types of fixtures for torchiere lamps
Totally indirect
Semi-indirect
The bowl is opaque causing all the light ray to be thrown toward the ceiling then reflected downward into completely diffused lighting
Totally indirect
Lighting is easiest on the viewers eyes
Totally indirect
Natural shadows of the face are diminished
Totally indirect
The bowl is translucent allowing the transmission of direct and indirect rays
Semi Indirect
Indirect rays greatly __________ the direct ones
Exceed
Direct rays from the two torchiers at the casket may
subdue normally shadowed areas
Cause a cast shadow if poorly located
A concave boxlike fixture extending around the walls of the room interior, several feet from the veiling
Cove lighting
Types of lamps for cove lighting
Incandescent or fluorescent
Direction of illumination for cove lighting
Upward
Type of illumination for cove lighting
Diffused, area illumination
A recess in the wall for the casket, with lighting behind the top and side walls
Alcove lighting
A long, narrow recepticle with a reflecting surface within
Trough lighting
Usually available with three series of colored or uncolored incandescent lamps alternated
Trough lighting
Some fixtures for trough lighting have these attached
Transparencies
Trough lighting is hidden behind
A ceiling joist or arch
Large luminous light fixture, usually fluorescent lighting
Dome lighting
Dome lighting is normally mounted
on the ceiling or recessed so it is level with the ceiling
Dome lighting is used for
direct lumination
A plastic shield is used in dome lighting to
diffuse the light
These incandescent lights are used to illuminate the casket or flowers
Flood or spot lighting
A hanging lamp, providing semi-diffused incandescent illumination
Chandelier
Because of their location, there is usually no effect with these
Candelabra
When close to the casket it may illuminate the deceased
Candle lighting
Supplies both direct and indirect lighting, and may need supplementary lighting
Table and floor lamp lighting
Hung on the open lid of the casket, but creates shadows
Casket Lamp Lighting
If a hue is held in the line of vision and the eyes become over stimulated, the complement will be seen when the stimulus is removed
After-Image
Two hues which are justaposed modify the appearance of each other
If they are complementary, they make each other appear more vivid
If not complementary, they dull each other
Simultaneous Contrast
Around the edge of a hue which is focused steadily will appear a fringe of another hue which is complementary
Fringe
If two non-complementary hues are juxtaposed and there is a sufficient quantity of the hue being fixated, the over stimulation of one raises its complement and mixes it with the background color to yield a new hue
Interaction of hues
The nerve endings in the retina of the eye can very easily become tired through overstimulation by a single hue
Eye fatigue
