Natural and Artificial Lighting Sources Overview

Light

Smallest quantity of energy transported.

Natural Lighting

Light from sun, stars, or fire; reduces energy use.

Daylighting

Technique to bring natural light indoors.

Natural Light

Radiation from the sun, blocked by atmosphere.

Direct Sunlight

Light entering through windows or skylights.

External Reflection

Light reflecting off external surfaces; can cause glare.

Internal Reflection

Light reflecting off internal surfaces like walls.

Vitamin D

Nutrient absorbed from sunlight; supports health.

Mental Health

Natural light exposure can reduce depression.

Better Sleep

More sunlight exposure improves sleep quality.

Artificial Lighting

Light generated through electric or electronic means.

LED

Energy-efficient light source; lasts 25 times longer.

Incandescent Bulb

Traditional bulb; least energy-efficient lighting option.

Fluorescent Bulb

More energy-efficient than incandescent; various sizes available.

Ambient Lighting

General illumination for safety and daily activities.

Task Lighting

Focused light for specific tasks like reading.

Accent Lighting

Highlights features; adds drama to spaces.

Architectural Lighting

Lighting design that enhances building aesthetics.

Aesthetic

Emotional impact of lighting on occupants.

Function

Ensures safety and visibility in spaces.

Efficiency

Minimizes wasted light; enhances energy use.

CFL

Compact fluorescent light; energy-efficient alternative.

Glare

Excessive brightness causing discomfort or visibility issues.

Task Surfaces

Areas where work is performed; need adequate lighting.

High Reflective Surfaces

Smooth or glossy finishes enhancing internal light.

Light Shelves

Architectural feature reflecting light deeper into spaces.

Energy Consumption

Amount of energy used by lighting fixtures.

Lighting Controls

Devices managing light quality, color, and brightness.

Natural Light Benefits

Improves health, mood, and sleep quality.

Artificial Light Benefits

Extends productivity beyond daylight hours.