Image: Wikimedia Commons

light source

Object or device that emits light

Also known as light · source of light · light-generating object · light emitter · light-emitting object

Instance of: source type
Subclass of: source entity
, radiator

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometers (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the infrared and the ultraviolet, called collectively optical radiation.

Overview

All data

29 statements · 10% with external sources · numbers in brackets are citations

Properties for this type: luminous intensity
Has list: list of light sources
Has effect: light nature of statement: defining quality
Has characteristic: color temperature
Used by: alarm clock

Data quality

statements

10%

externally sourced

Source last edited September 24, 2026. AIDB refreshes this page daily.

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AIDB. (2026). light source (Q1146001). Retrieved from https://aidb.si/e/light-source-Q1146001