18 Questions
What is the primary purpose of using transparent materials on walls in lighting design?
To allow natural light to pass through
What is the type of natural lighting that involves light reflecting off the floor or ground surfaces?
External Reflection
What is the principle behind incandescent lamps?
Heat produced by electric current through a filament
What is a benefit of Mercury vapor lamps compared to traditional incandescent lamps?
Relatively long lamp life
What is the purpose of using high reflective surfaces in internal reflection?
To reflect light onto internal walls and floor
What is an example of an internal reflection technique?
Mirrors
What is the term used to describe the effect of sensation by which an observer is able to distinguish differences in luminance?
Brightness
What is the unit of measurement for the light radiating capability of a light source?
Candela
What is the term used to describe the quality of visual sensation that is associated with the spectral distribution of light?
Color
What is the term used to describe the device that generates light?
Lamp
What is the term used to describe the density of the light flux that falls on a given point or area of interest?
Illumination
What is the term used to describe the smallest quantity of energy that can be transported?
Photon
What happens to the color of fluorescent lamps during lamp dimming?
It undergoes a small shift
What is the relationship between illumination and luminous intensity of the light source?
Illumination is directly proportional to luminous intensity
What is the effect of distance on illumination?
Illumination varies inversely as the square of the distance
What is the consideration when using lamps that exhibit a significant color shift?
Care should be exercised to avoid discomfort to occupants
What is the unit of measurement for luminous intensity?
Candela
What is the formula for calculating illumination (E) at a point?
E = Φ / (4π d^2)
Learn about the different approaches to natural lighting in architecture, including direct sunlight, external reflection, and internal reflection. Understand the benefits and considerations of each method in designing buildings that maximize natural light.
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