Related articles:
Candela
Luminous flux
Lumen (unit)
Incandescent light bulb
Light-emitting diode
Fluorescent lamp
Candle
Sun
Key terms:
j
light
math
source
lambda
eye
nm
lm
efficiency
int
ler
units
luminous efficacy
energy
wavelength
power
lumen
infin
watt
standard
response
solid
lambda d
sometimes
expressed
outside
photopic
spectral
fraction
filament
emission
human eye
luminous flux
conditions
light bulb
photometry
luminous efficacy of radiation
electromagnetic
luminous efficiency
radiant flux
visible spectrum
temperatures
dimensionless
luminosity function
luminous efficacy of a source
luminous coefficient
overall luminous
maximum possible
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