Termlist

This list contains 1448 entries.
If you want to specify your search please use the search operator drop-down list below "Search terms".
To search for a term that also appears as part of another term (i.e. "light" but not "lighting", "luminance" but not "illuminance") use a space character after resp. before the search term.
17-301 -

diffraction

17-302 -

diffuse horizontal illuminance (from the sky) [Ev,d]

17-303 -

diffuse horizontal irradiance [Ee,d]

17-304 -

diffuse reflectance [ρd]

17-305 -

diffuse reflection

17-306 -

diffuse sky radiation

17-307 -

diffuse transmission

17-308 -

diffuse transmittance [τd]

17-309 -

diffused lighting

17-310 -

diffuser

17-311 -

diffusion

17-312 -

diffusion factor (of a diffusing surface, by reflection or by transmission) [σ]

17-313 -

digital imaging system

17-314 -

dim (adjective)

17-315 -

dimmer

17-316 -

direct flux (on a surface)

17-317 -

direct glare

17-318 -

direct illuminance

17-319 -

direct lighting

17-320 -

direct ratio (of an interior lighting installation)

17-321 -

direct solar illuminance [Ev,s]

17-322 -

direct solar irradiance [Ee,s]

17-323 -

direct solar radiation

17-324 -

direct transmission

17-325 -

direction-indicator light

17-326 -

direction light

17-327 -

directional effect

17-328 -

directional emissivity (of a thermal radiator, in a given direction) [ε; ε(θ, φ)]

17-329 -

directional lighting

17-330 -

disability glare

17-331 -

discharge, electric (in a gas)

17-332 -

discharge lamp

17-333 -

discomfort glare

17-334 -

dispersion

17-335 -

display input/output characteristic

17-336 -

display surface

17-337 -

display surround (in image technology)

17-338 -

display, flat panel

17-339 -

display, LCD

17-340 -

distribution curve (of luminous intensity)

17-341 -

distribution temperature (of a source in a given wavelength range, λ1 to λ2) [TD]

17-342 -

distributor road

17-343 -

diversity [Ud]

17-344 -

DLOR (abbreviation)

17-345 -

dominant wavelength (of a colour stimulus) [λd]

17-346 -

dose (of optical radiation of specified spectral distribution)

17-347 -

dose rate

17-348 -

dose response curve

17-349 -

downlight

17-350 -

downward flux (of a source)

17-351 -

downward flux fraction (of a luminaire)

17-352 -

downward light output ratio (of a luminaire)

17-353 -

drip-proof luminaire

17-354 -

DRL (abbreviation)

17-355 -

duration of exposure [texp]

17-356 -

dust-proof luminaire

17-357 -

dust-tight luminaire

17-358 -

dwelling

17-359 -

effective dose [Heff]

17-360 -

effective intensity (of a flashing light)

17-361 -

effects projector

17-362 -

efflux geometry

17-363 -

eight degree geometry

17-364 -

electric arc (in a gas or a vapour)

17-365 -

electric lighting

17-366 -

electroluminescence

17-367 -

electroluminescent lamp

17-368 -

electroluminescent panel

17-369 -

electroluminescent source

17-370 -

electromagnetic radiation

17-371 -

electromechanical matrix variable message sign

17-372 -

electronic flash lamp

17-373 -

electro-optical conversion function

17-374 -

element (of a sign face)

17-375 -

element size (of a sign face)

17-376 -

elliptically polarized radiation

17-377 -

emergency lighting

17-378 -

emergency mode ballast lumen factor

17-379 -

emission (of radiation)

17-380 -

emission spectrum (of a luminescent material)

17-381 -

emissive material

17-382 -

emissivity (hemispherical) [ε, εh]

17-383 -

emitter

17-384 -

enamelled bulb

17-385 -

energy level

17-386 -

entrance angle (of a retroreflector) [β]

17-387 -

entrance portal (of a road tunnel)

17-388 -

environmental zones

17-389 -

EOCF (abbreviation)

17-390 -

equal energy spectrum (US)

17-391 -

equality-of-brightness photometer

17-392 -

equality-of-contrast photometer

17-393 -

equi-energy spectrum

17-394 -

equi-interval maintenance programme

17-395 -

equilux maintenance programme

17-396 -

equivalent contrast (of a task)

17-397 -

equivalent luminance (of a field of given size and shape, for a radiation of arbitrary relative spectral distribution) [Leq]

17-398 -

equivalent veiling luminance (for disability glare or veiling reflections)

17-399 -

erythema, actinic

17-400 -

erythema action spectrum [ser(λ)]