x

Glossary

A


 

Absortion

 

Accent lighting

 

Accommodation

 

Adaptation

Adapter

 

Additive colour mixing

 

Ambient Luinescence

 

Anti-dazzle cap

Anti-dazzle screen

 

Anti-glare protection

 

Architectural lighting

B


 

Backlighting

 

Barn doors

Beam spread

Brilliance

C


 

C.I.E. standard colourmetric system

 

Candela, cd

 

CCG

 

Ceiling washlight

 

Ceramic discharge tube

 

Colour adaptation

 

Colour compensation

 

Colour filter

 

Colour mixing

 

Colour rendition

Colour rendition index

 

Colour saturation

 

Colour temperature

 

Compact fluorescent lamps

 

Compact projector

 

Condenser projector

 

Cone vision

 

Cones

 

Connected load

 

Connected power of illumination

Constancy

 

Contrast

 

Contrast rendition

 

Control gear

 

Control gear

 

Coolbeam

 

Coolbeam reflector

 

Cover glass

 

Cut-off angle

D


 

DALI

 

Dark Sky

 

Dark Sky technique

 

Darklight technique

 

Daylight

 

Daylight factor

 

Daylight simulator

 

Daylight systems

Daylight white, tw

 

Daytime vision

Dichroic reflector

 

Diffuse light

 

Diffuser

 

Digital Addressable Lighting Interface

 

Dimmer

 

Direct illuminance

 

Directed light

 

Directional luminaire

 

Directive luminaires

 

Discharge lamps

 

DMX

 

Dominant wavelengtH

 

Double washlights

 

Double-focus downlight

 

Double-focus wallwasher

 

Downlight

E


 

Electronic control gear

 

Ellipsoid projector

 

Elliptical reflector

 

Emergency lightinG

Emission angle

 

Ethernet

 

Eulumdat

 

EVG

 

Exhibition lighting

 

Eye

F


 

Facetted reflector

 

Fading

 

Fading time

 

Fibre optics

 

Fill light

Filter

 

Flood

 

Floodlight

 

Floor washlights

 

Fluorescence

Fluorescent lamp

 

Focal glow

 

Fovea

 

Fresnel lens

G


 

Gateway

 

General lighting

General service lamp

Glare

 

Global illumination

 

Global radiation

Gobo

 

Grazing light

H


 

HDR

 

High Dynamic Range

High-pressure discharge lamps

High-pressure sodium vapour lamp

 

Honeycomb anti-dazzle screen

Hotel lighting

 

Hub

I


 

IES

 

Ignitor

 

Illuminance

 

Incandescent lamp

 

Indirect lighting

Infrared radiation

 

Interference

 

Interference filter

 

Intersecting beam

 

Inverse square law

Inverse square law

 

Inverse square law

 

IP rating (Protection class)

 

Isoluminance contour diagram

 

Isolux diagram

K


 

Key light

KNX

L


 

Lamp

 

Lamp cap

 

Lamp designation system

 

Lamp life

 

Lamp lumen maintenance factor

 

Lamp survival factor

 

Lampholder

 

LAN

 

LCG

 

LDS

 

Leading edge technology

 

LED

 

Lens

 

Lens wallwasher

 

Life

 

Light beam

 

Light beam diameter

Light colour

 

Light control (1)

 

Light control (2)

 

Light fastness

 

Light loss factor

 

Light output ratio

 

Light pollution

Light protection

 

Light scene

 

Light sequence

 

Light simulation

 

Light source

 

Light structure

 

Local Operating Network

 

LON

 

Low-pressure discharge lamp

Low-voltage halogen lamp

 

Lumen, lm

 

Luminaire

 

Luminaire classification

 

Luminaire for linear light source

 

Luminaire maintenance factor

 

Luminaires for pictograms

 

Luminance

 

Luminescence

 

Luminescence conversion

 

Luminous efficacy

 

Luminous flux

 

Luminous intensity

 

Luminous intensity distribution curve

 

Luminous power

 

Lux, lx