Ch. 2

Card Set Information

Author:
lkillebr
ID:
100610
Filename:
Ch. 2
Updated:
2011-09-11 18:13:35
Tags:
lighting codes
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Description:
Lighting
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  1. How do people feel on a sunny day?
    more alert, energetic, and positive by bright highlights and crisp shadows
  2. What is the difference between a dull day and a bright day?
    Quality of light
  3. Workplane
    the plane on which visual tasks are usually done; a horizontal plane 2'-6" above the floor, unless other indicated.
  4. High Load
    environments that are complex, crowded, asymmetrical, novel, unfamiliar, surprising, or random.
  5. Low Load
    environments that are simple, uncrowded, symmetrical, conventional, familiar, unsurprising, or organized
  6. Low Contrast Environment
    a lighting condition characterized by a large proportion of diffuse light and a small amount of focused light.
  7. High Contrast Environment
    a large proportion of focused light (on an object or the foreground) and a small amount of diffuse light (the background)
  8. 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.
  9. Specular
    having the reflecting properties of a mirror; a smooth reflecting surface.
  10. Impressions of Spaciousness
    impressions of a rooms largeness or smallness is affected by the intensity and uniformity of the lighting at the room perimeter
  11. Impressions of Perceptual Clarity
    lighting schemes rated high in facial clarity are considered more public, and those in low clarity are considered more private
  12. Public Space
    Implies intermingling and bringing people together. the potential for visual contact imporoves as the intensity of general illuminance is increased.
  13. 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.
  14. Impressions of Pleasantness
    nonuniform brightness produced by a downward concentrating lighting system rates more favorably than the uniform brightness produced by a diffuse system
  15. Vertical Surface Illumination
    lighting vertical surfaces reinforce feelings of spaciousnes, clarity, and pleasantness
  16. 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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