Lighting

Question 1

foot candle

Answer 1

measure of light per SF

Question 2

Lumens

Answer 2

amount of light leaving fixture

Question 3

illuminance

Answer 3

amount of luminous flux (lumens) on object

Question 4

types of light bulbs

Answer 4

incandescent, fluorescent, HID (high intensity discharge), LED, OLED

Question 5

incandescent

Answer 5

heat up/electrify to create light. gives off heat. very fast, cheap, lots of variety. not effecient. yellow color

Question 6

watts

Answer 6

measure of powerfl

Question 7

flourescent

Answer 7

needs ballast to control elec arc. relatively slow to turn on. not good in cold temp. spread of light source due to tube shape. mercury inside - have to recycle safely

Question 8

HID (High intensity discharge)

Answer 8

slow to light up, sim to flourescent, messes with color rendering, high cost of replacement

Question 9

LED

Answer 9

series of diodes together, change color rendering easily. very fast, very effecient. can be closer to people without risk

Question 10

OLED

Answer 10

Flat, pliable, curveable. surface light, not point source

Question 11

different ways to do lighting design

Answer 11

point source/direct, anti-glare, indirect, task, pendant

Question 12

luminaires

Answer 12

the light fixture itself

Question 13

lamp

Answer 13

the bulb

Question 14

shade/diffuser

Answer 14

to protect eye/glare

Question 15

efficacy

Answer 15

efficency of light/power and output/work plane