Term nodes beginning with "S"

Titlesort icon
safety lighting
sampling aperture
saturation
scalar illuminance
scalar irradiance
scattering
scattering indicatrix (for a specified incident beam)
scintillator
scotopic vision
screw base (US)
screw cap
sealed beam lamp
searchlight
secondary light source
secondary photometric standard
secondary standard lamp
sector light
SED (abbreviation)
selective detector (of optical radiation)
selective diffusion
selective filter
selective radiator
self-ballasted mercury lamp (US)
self-calibrating thermal detector
self-exchange coefficient (of a surface when its radiance or luminance is the same at all points and for all directions) [gs]
semi-cylindrical illuminance (at a point) [Esc]
semi-direct lighting
semi-indirect lighting
semiconductor ballast
sensitivity
series cathode heating
series cathode preheating
service illuminance (of an area)
service road
shade
shading
shell base (US)
shell cap
shielding angle
shopping street
short-arc lamp
side-marker light (US)
sidelight (of vehicles)
sidelight (of vessels)
sidewalk (US)
sign
sign geometry
sign matrix
sign panel (US)
sign plate
sign, traffic
signal light
single-coil filament
skid resistance
skin hazard distance
sky component of daylight factor [Ds]
sky factor
sky glow
sky illuminance [Evd]
sky luminance [Lv]
skylight
socket
softcopy
softlight
solar constant [Eeo]
solar factor (of glazing material) [g]
solar radiation
solid angle (of an area subtended at a point)
source
spacing (in an installation)
special floodlight
spectral
spectral absorbance (of a homogeneous non-diffusing layer) [Ai(λ)]
spectral absorption index (of a heavily absorbing material) [κ(λ)]
spectral absorptivity (of an absorbing material) 
spectral basis functions
spectral chromaticity coordinates [r(λ), g(λ), b(λ); x(λ), y(λ), z(λ); r10(λ), g10(λ), b10(λ); x10(λ), y10(λ), z10(λ)]
spectral concentration (of a radiant, luminous or photon quantity) [Xλ(λ); (Xλ)]
spectral distribution [Xλ(λ); (Xλ)]
spectral internal absorptance (of a homogeneous non-diffusing layer) [αi(λ)]
spectral internal transmittance (of a homogeneous non-diffusing layer) [τi(λ)]
spectral internal transmittance density (of a homogeneous non-diffusing layer) [Ai(λ)]
spectral irradiance [Eλ]
spectral line
spectral linear absorption coefficient (at a point in an absorbing medium, for a collimated beam of radiation) [a(λ)]
spectral linear attenuation coefficient (at a point in an absorbing and scattering medium, for a collimated beam of radiation) [µ(λ)]
spectral linear scattering coefficient (at a point in a diffusing medium, for a collimated beam of radiation) [s(λ)]
spectral luminous efficiency (of a monochromatic radiation of wavelength λ) [V(λ) for photopic vision; V'(λ) for scotopic vision]
spectral mass attenuation coefficient
spectral mismatch correction factor (for a photometer) [F*]
spectral optical depth (of a medium, for a given length) [δ(λ)]
spectral optical thickness (of a medium, for a given length) [δ(λ)]
spectral quantum efficiency of the fluorescent process [ηµ(µ)]
spectral radiance (for a wavelength interval dl, in a given direction at a given point) [Lλ]
spectral responsivity (of a detector) [s(λ)]
spectral stimulus
spectral transmissivity (of an absorbing material)
spectral weighting function
spectrally neutral