Controlling Light

Question 1

concentrated light provides for ?

Answer 1

more contrast

Question 2

high contrast light= high stimulation or high load and is used in

Answer 2

retail, restraunts, hospitality, and residential

Question 3

diffuse light creates a ___ ___

Answer 3

low contrast (shadowless) environment

Question 4

Electric light sources emit in one or more directions. name them

Answer 4

1. downward
2. upward
3. multidirectional

Question 5

What are the primary ways to distrbute light?

Answer 5

Direct. Indirect. Semidirect. Smei-indirect. diffused

Question 6

What are some ways to shield light?

Answer 6

Baffle, Louver, Cowls and shades

Question 7

___ ___: results when indicent light is reflected

Answer 7

Specular Reflection

Question 8

___-____ _______ (etched glass): most of the incident light is reflected

Answer 8

Semi-Specular reflection

Question 9

____ ____: incident light scattered in a variety of angles

Answer 9

Diffused reflection

Question 10

What do reflectors do when it comes to controlling and redirecting light?

Answer 10

shaped to redirect via reflection
narrow spot to wide angle
usually a specular or grooved aluminum reflector

Question 11

What do Diffusers do when it comes to controlling and redirecting light?

Answer 11

a device to scatter light in several directions
made of white plastic or etched glass, alabaster

Question 12

What do Refractors do when it comes to controlling and redirecting light?

Answer 12

A device to refaract light scientifically
prism lenses: glass or plastic

Question 13

What do Fresnel Refractor do when it comes to controlling and redirecting light?

Answer 13

A lens compromised of concetric circles with a flat or domed surface

Question 14

What are the 2 basic types of luminare distributions

Answer 14

1. point sources
2. ambient/diffused

Question 15

What are the 3 basic types off luminare mounting methods

Answer 15

1. Recessed (& Semi Recessed)
2. Surface Mounted
3. suspended

Question 16

These are referred to as “high-hats” or “cans” or “spotlights”

Answer 16

Recessed Downlights

Question 17

To avoid hot spots or glare from suspended luminares, mounted indirect fixtures at least ___ from ceiling

Answer 17

18”

Question 18

what should be the distance from dining table to bottom of luminare?

Answer 18

~30”