illumination

Question 1

is the planning of our visual environment.

Answer 1

Lighting Design

Question 2

is commonly called light output and is measured in lumens

Answer 2

Lumens Flux

Question 3

Light intensity measured on a plane at a specific location

Answer 3

Illuminance

Question 4

Illuminance measurement, lumens per square foot

Answer 4

footcandles

Question 5

This measures light “leaving” a surface in a particular direction, and considers the illuminance on the surface and the reflectance of the surface

Answer 5

Brightness

Question 6

referred to as brightness and is measured in footlamberts (fL) or candelas/m2 (cd/m2).

Answer 6

Luminance

Question 7

indicates the percent of people who are comfortable with the glare from a fixture

Answer 7

Visual comfort probability (VCP)

Question 8

refers to the maximum recommended distance between fixtures to ensure uniformity

Answer 8

Spacing criteria (SC)

Question 9

indicates the color appearance of an object under a source as compared to a reference source

Answer 9

Color rendering index (CRI)

Question 10

3 Qualities of Illumination

Answer 10

Glare
uniformity of illuminance
Color rendition

Question 11

a sensation caused by luminances in the visual field that are too bright

Answer 11

Glare

Question 12

the relationship between the luminance of an object and its background.

Answer 12

Contrast

Question 13

caused by bright lights that are within your field of vision, such as a bright overhead light or floor lamp with a naked light bulb

Answer 13

Direct glare

Question 14

caused by light reflected off of glossy surfaces such as your computer screen, a shiny desk surface, or windows stationed at certain angles etc onto your eyes

Answer 14

Indirect glare