illuminance

Examples

• All

• Consider a subject who prefers an illuminance of 50 lux.

  Academic text (2010)

• Moore et al. recorded the illuminances preferred by 45 occupants in office buildings.

  Academic text (2010)

• Table 2 shows the range of surface luminances at each of three levels of illuminance within these ranges.

  Academic text (2010)

• The legend refers to the stimulus range and initial illuminance, Table 5.

  Academic text (2010)

• The results revealed a significant difference in preferred illuminance between three stimulus ranges.

  Academic text (2010)

• The preferred illuminances are either mean or median values, as reported in the original studies.

  Academic text (2010)

• Further data are needed to compare the outcomes of this procedure with the high/low initial illuminance procedure.

  Academic text (2010)

• The mean of these two values is used to provide an unbiased estimate of optimum illuminance.

  Academic text (2010)

• An alternative approach would be to compare preferred illuminances for tasks of different difficulty using the same stimulus range.

  Academic text (2010)

• Boyce et al. sought preferred illuminances in a windowless office from 18 test participants.

  Academic text (2010)

Synonyms

I

illumination

vsilluminance

12 4.1

The amount of light in a place or on a surface

is a precise per unit area measure of light, not a visibility measure

I

irradiance

vsilluminance

• Specialized

3 8.5

The amount of light that falls on a surface

measures luminous flux falling on a unit area rather than light energy

Antonyms

D

darkness

534 1.0

A time or place with almost no light

How Bright

glare

37 3.3

radiance

11 4.2

brightness

41 1.0

illuminance

• Specialized

8.8

dimness

4 3.4

darkness

534 1.0

Surface Forms

Morphology

Etymology