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ENVIRONMENTAL FACTORS

CHAPTER 2 NATURAL ENVIRONMENT AND HUMAN-MADE CHANGES TO ENVIRONMENT e240 Light Electromagnetic radiation by which things are made visible by either sunlight or artificial lighting (e.g. candles, oil or paraffin lamps, fires and electricity), and which may provide useful or distracting information about the world. inclusion light intensity; light quality; colour contrasts

e2400	e2401	e2408	e2409
Light intensity	Light quality	Light, other specified	Light, unspecified
Level or amount of energy being emitted by either a natural (e.g. sun) or an artificial source of light.	The nature of the light being provided and related colour contrasts created in the visual surroundings, and which may provide useful information about the world (e.g. visual information on the presence of stairs or a door) or distractions (e.g. too many visual images).

Illustrations copyright by TAI TAKAHASHI, International University of Health and Welfare.