Term nodes beginning with "L"

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label
lambert
Lambert's (cosine) law
lambertian surface
lamp
lamp lumen maintenance factor
lamp luminous flux maintenance factor [fLLM]
lamp survival factor [fLS]
lamp voltage (of a discharge lamp)
lampholder
landing light
large source (in photobiology)
laser
lateral light
lateral mark
LCD (abbreviation)
leading lights
leading marks
LED (abbreviation)
legend
legibility (of a sign)
legibility distance (of a sign)
legibility distance under rapid glance conditions (of a sign)
lens light guide
lens spotlight
license plate light (US)
life (of a lamp)
life test (of a lamp)
life to X% failures (of a lamp)
light
light (adjective)
light centre (of a source)
light emitting diode
light emitting variable message sign
light exposure (at a point of a surface, for a given duration) [Hv; H]
light extractor (of a hollow light guide)
light injector (of a hollow light guide)
light loss factor
light output ratio (of a luminaire) [RLO]
light pollution
light therapy
light vessel
lighted buoy
lighthouse
lighting
lighting chain
lighting fitting
lighting installation
lighting string (US)
lighting technology
lightness (of a related colour)
lightship
line separation
linear detector
linearly polarized radiation
liquid crystal display
LLMF (abbreviation)
LMF (abbreviation)
local control
local lighting
local street
localized lighting
long-arc lamp
longitudinal direction
longitudinal uniformity of road surface luminance [Ul]
loom (of a light)
LOR (abbreviation)
louver (US)
louvered ceiling (US)
louvre
louvred ceiling
low pressure mercury (vapour) lamp
low pressure sodium (vapour) lamp
LSF (abbreviation)
lumen
lumen method
lumen per square foot (US)
luminaire
luminaire efficiency (US)
luminaire guard
luminaire maintenance factor [fLM]
luminance (in a given direction, at a given point of a real or imaginary surface) [Lv; L]
luminance coefficient (at a surface element of a medium, in a given direction, under specified conditions of illumination) [qv; q]
luminance coefficient in diffuse illumination
luminance contrast ratio (of a display)
luminance difference threshold [∆L]
luminance dose (in a given direction, at a given point of a real or imaginary surface) [Lt,v]
luminance factor (at a surface of a non-self-radiating medium in a given direction, under specified conditions of illumination) [βv]
luminance meter
luminance ratio (of a scene or an image)
luminance threshold
luminance uniformity [Uo]
luminescence
luminescent luminance factor (at a surface of a photoluminescent medium in a given direction, under specified conditions of illumination) [βv,L]
luminescent radiance factor (at a surface of a photoluminescent medium in a given direction, under specified conditions of illumination) [βL]
luminophor
luminous ceiling
luminous colour
luminous cylindrical exposure (at a point, for a given direction and duration) [Hv,z; Hv]