Lighting Design Principles Flashcards
is the foundation of architectural buildings. It can change the perception of space, the shape, textures of materials and improve their aesthetic features. It also plays an important role in ensuring the comfortability of occupants.
Lighting
is the science and art of making things useful to humankind
Design
The distribution of light on a horizontal surface. The purpose of all lighting is to produce ….
Illumination
is the application of lighting̲–including daylight when it is specifically used as a source of
lighting–to human spaces.
Lighting Design
are a measure of energy consumption. When we pay our electric bill, we pay for
the number of we use.
Watts
a measure of visible light energy. As reference, a 100-watt incandescent lamp emits about 1600
Lumen
The most common measure of light output (or luminous flux)
Lumen
-A measurement of the intensity of illumination.
-is the illumination produced by one lumen distributed over a 1-square-foot area.
Footcandle
Light intensity measured on a plane at a specific location is called
Illuminance
The excessive brightness from a direct light source that makes it difficult to see what one
wishes to see.
Glare
Light Quantity
Illumination, Lumen, Watts, Footcandle
Quantity of Illumination
Light Output, Light Level, Brightness
Another measurement of light is luminance. This
measures light “leaving” a surface in a particular direction, and considers the illuminance
on the surface and the reflectance of the surface.
Brighthness
is preferred for visual tasks because it produces higher contrast than warm light
Cool light
is preferred forliving spaces because it is more flattering to skin tones and clothing
Warm light
is generally considered to be a more important lighting quality than color temperature. Most objects are not a single color, but a combination of many colors, and certain light sources may change the apparent color of an object.
Color rendition
Provides general illumination indoors for daily activities, and outdoors for safety and
security.
Ambient Lighting
Facilitates particular tasks that require more light than is needed for general illumination,
such as under-counter kitchen lights, table lamps, or bathroom mirror lights.
Task lighting
Draws attention to special features or enhances the aesthetic qualities of an indoor or
outdoor environment.
Accent Lighting