Which two pieces of information about the sun are needed in order to properly design a building for daylighting?
Orientation to the structure
Path and seasonal position
How much of the light source market today is LED?
70%
Light emitted by a source enclosure
Luminous Flux
Light produced in a given direction
Luminous Intensity
Density of luminance flux on an area
Illuminance
Brightness, or cd/m^2
Luminance
When does our scotopic vision benefit us the most?
night or low light
T/F a large subtended angle occurs where the object is small and is a great distance from the eye
False
In terms of color rendition which statement would describe the perfect life source?
All wavelengths of substantial quanitiy are present
What is the CRI reference for sources with CCT ratings > 5000K?
Daylight
In order for us to "see" the true color of an orange, what must be true about the light source
must have orange wavelengths present
Which light sources discussed in class has the best lamp life?
Induction
Which light source requires a driver to operate?
Solid State
What is the diameter of a PAR 38 metal halide lamp?
4.75
What is the main cause of failure of solid state light source?
Heat
Which light source discussed in class has the worst color rendition?
Metal Halid