Natural Lighting Design Techniques

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What is the primary purpose of using transparent materials on walls in lighting design?

To block natural light from entering the room

To reflect artificial light

To allow natural light to pass through (correct)

To absorb sound waves

What is the type of natural lighting that involves light reflecting off the floor or ground surfaces?

Internal Reflection

Direct Sunlight

External Reflection (correct)

Artificial Lighting

What is the principle behind incandescent lamps?

Discharge of electric current through a thin metal filament

Heat produced by electric current through a filament (correct)

Passage of electric current through a vapor or gas

Fluorescence initiated by electric current

What is a benefit of Mercury vapor lamps compared to traditional incandescent lamps?

Relatively long lamp life Signup and view all the answers

What is the purpose of using high reflective surfaces in internal reflection?

To reflect light onto internal walls and floor Signup and view all the answers

What is an example of an internal reflection technique?

Mirrors Signup and view all the answers

What is the term used to describe the effect of sensation by which an observer is able to distinguish differences in luminance?

Brightness Signup and view all the answers

What is the unit of measurement for the light radiating capability of a light source?

Candela Signup and view all the answers

What is the term used to describe the quality of visual sensation that is associated with the spectral distribution of light?

Color Signup and view all the answers

What is the term used to describe the device that generates light?

Lamp Signup and view all the answers

What is the term used to describe the density of the light flux that falls on a given point or area of interest?

Illumination Signup and view all the answers

What is the term used to describe the smallest quantity of energy that can be transported?

Photon Signup and view all the answers

What happens to the color of fluorescent lamps during lamp dimming?

It undergoes a small shift Signup and view all the answers

What is the relationship between illumination and luminous intensity of the light source?

Illumination is directly proportional to luminous intensity Signup and view all the answers

What is the effect of distance on illumination?

Illumination varies inversely as the square of the distance Signup and view all the answers

What is the consideration when using lamps that exhibit a significant color shift?

Care should be exercised to avoid discomfort to occupants Signup and view all the answers

What is the unit of measurement for luminous intensity?

Candela Signup and view all the answers

What is the formula for calculating illumination (E) at a point?

E = Φ / (4π d^2) Signup and view all the answers