The flashcards below were created by user
lkillebr
on FreezingBlue Flashcards.
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How do people feel on a sunny day?
more alert, energetic, and positive by bright highlights and crisp shadows
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What is the difference between a dull day and a bright day?
Quality of light
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Workplane
the plane on which visual tasks are usually done; a horizontal plane 2'-6" above the floor, unless other indicated.
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High Load
environments that are complex, crowded, asymmetrical, novel, unfamiliar, surprising, or random.
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Low Load
environments that are simple, uncrowded, symmetrical, conventional, familiar, unsurprising, or organized
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Low Contrast Environment
a lighting condition characterized by a large proportion of diffuse light and a small amount of focused light.
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High Contrast Environment
a large proportion of focused light (on an object or the foreground) and a small amount of diffuse light (the background)
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Three fundamental elements of light are:
- ambient, focal glow, and sparkle.
- Ratio of ambient light to focal glow establishes the degree or brightness contrast in a space; sparkle adds the highlights that contribute to feelings of well-being.
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Specular
having the reflecting properties of a mirror; a smooth reflecting surface.
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Impressions of Spaciousness
impressions of a rooms largeness or smallness is affected by the intensity and uniformity of the lighting at the room perimeter
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Impressions of Perceptual Clarity
lighting schemes rated high in facial clarity are considered more public, and those in low clarity are considered more private
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Public Space
Implies intermingling and bringing people together. the potential for visual contact imporoves as the intensity of general illuminance is increased.
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Private Space
suggests separating people and keeping them apart. Shadow and silhouette reinforce feelings of detachment and privacy because these lighting techniques inhibit the ability to perceive precise facial detail; even nearby individuals become more anonymous.
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Impressions of Pleasantness
nonuniform brightness produced by a downward concentrating lighting system rates more favorably than the uniform brightness produced by a diffuse system
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Vertical Surface Illumination
lighting vertical surfaces reinforce feelings of spaciousnes, clarity, and pleasantness
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Monotony results in boredom and depression:
even a string of bright, sunny days will become boring through overfamiliarity. variation increases stimulation and impressions of pleasantness.
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