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room geometry and light access to capture daylight room geometry and light access to capture daylight daniel butko 0593-6510 Fundamentals presentation lighting design seminar - arc 6670 Le Corbusier said that architecture's forms are revealed in light

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room geometry and light access to capture daylight


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room geometry and light access to capture daylight

daniel butko

0593-6510

Fundamentals presentation

lighting design seminar - arc 6670


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Le Corbusier said that architecture's forms are revealed in light

He also stated “light is the key to well-being” and further

“I compose with light.”


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  • Light inspires us and can enliven space.

  • There is the ever-changing presence of natural light.

  • Natural light tells us about weather, the time of day, and satisfies other deeply rooted psychological needs.

  • It makes buildings more pleasant and can increase employee productivity and reduce absenteeism.

  • Natural light can provide ambient illumination which will reduce the use of electric light. This lowers energy consumption and reduces the generation of pollution.

  • Misapplied it can result in excessive heat gain, uncomfortable glare, and degradation of artwork and materials. This misapplication of natural light is more common than its successful application. Building orientation is too often ignored, fenestration and facades are designed without regard to distribution of daylight, blinds are drawn to exclude the daylight, and the electric lights by the window are turned on regardless of the weather.


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Sources of Natural Light

To effectively use natural light, first assess its availability.

The quantity and quality of light available for illumination in a building are determined by the regional climatic conditions.

Available daylight patterns are modified by factors such as adjacent landforms, vegetation, and structures. The varying light conditions create dramatically different perceptual environments and architectural responses.

The three basic sources of natural light are:

  • Daylight -- diffuse light through clouds or partially cloudy skies

  • Sunlight -- direct-beam sunlight through clear or partially cloudy skies

  • Reflected light -- light reflected from natural and/or man-made surfaces


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SUNLIGHTING STRATEGIES

For all lighting designs, the primary goal is to provide illumination for visual activities and visual delight. With sunlight, the basic design strategy is to use the sunlight indirectly. Indirect use of sunlight addresses the initial difficulty of a moving source of extremely high candlepower.

The building design should admit the proper amount of sunlight, use it efficiently, and redirect it for balanced illumination and to avoid glare.


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The most obvious trait of modern architecture is its permeability to daylight. Instead of blocking out most incident light, as did solid walls with small windows in the past, the new skeletal volumes are widely but also deeply porous to natural illumination.


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Even by the end of the 19th century, a startling change can be detected in the admission of daylight to buildings. As the proportion of openings to solid material began to reverse and then widen dramatically, interiors were flooded with fluctuating moods of weather and sky. Instead of enclosing space with massive walls, the building envelope became a filter to transmit inside a magical radiance.


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Taliesin West Garden Room


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References:

  • http://www.caed.asu.edu/vitalsigns/pictures/tg-pict/light/gardnlgt.htm

  • architectural lighting, m. david egan

  • masters of light


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