Thames & Kosmos Neon Light Writer handleiding

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Thames & Kosmos

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There are so many different ways to generate light! Visible light

is electromagnetic radiation that travels in very tiny bundles

called photons, which are sort of like energy waves and sort of

like particles. Here are some different lightning technologies.

Incandescent light is emitted by thermally hot objects.

Have you ever seen a blacksmith’s metal glow red hot

or even white hot? That is incandescent light. Most

incandescent light bulbs work by heating a metal

ﬁlament by running an electric current through it.

Conventional light bulbs and halogen light bulbs are

examples of incandescent light.

Luminescent light is emitted without heat, and

is also known as cold light. There are many types of

luminescence. Chemiluminescence is light emitted

by a chemical reaction, like glow sticks and glowing

diatoms in the ocean.

Electroluminescence is light emitted from

electricity ﬂowing through a substance. Sound

familiar? EL Wire, LEDs (light-emitting diodes),

and back-lit liquid crystal displays are examples of

electroluminescent lights.

Photoluminescence is light that is emitted as a

result of other light that is absorbed. Examples of this

are ﬂuorescence, like tonic water or laundry detergent

glowing under a UV black light, and phosphorescence,

like glow-in-the-dark paint and glow-in-the-dark

stickers that glow for a period of time after other light

sources are turned off.

There is even light caused by mechanical action,

such as when the bonds between materials are broken

causing the release of energy as photons. A classic

example of this is the spark of light you can sometimes

see when someone bites a wintergreen candy in the

dark.

Light can also be produced by crystallization,

radiation, and sound waves!

GEEK

OUT!

LIGHTING

TECHNOLOGIES

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