Philips Indoor Luminaires Indoor Furnishings User Manual


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Philips indoor luminaires Technical data 12.55
Glossary of lighting terminology
Halogen lamp
Incandescent lamp in which the inclusion of halogens in the gas
llingandahigh-temperaturequartzenvelopepromotethetungsten
halogencycle,permittingahigherlamenttemperature.Theresultisa
highercolortemperatureandasignicantlyextendedlife.
Halogen HV
“Highvoltage”230Vhalogenlamp,whichdoesnotrequireaballastor
a transformer.
Halogen LV
“Lowvoltage”6V,12Vor24Vhalogenlamp.Anelectronicor
electromagnetic transformer is required to operate low-voltage
halogen lamps and is often integrated into the luminaire.
HFD
Electronic regulating ballast which enables the light to be dimmed.
Ballast functions according to the DALI protocol.
HFD-T
ElectronicregulatingDALIballastforvariousuorescentlamps.With
this new-style electronic ballast standard push-buttons can be used to
dim the light output down to 3%. The lamp can also be switched on or
off using the push-button control.
Ballast functions according to the DALI protocol.
HFM
Compactlybuiltelectronicballastforvariouscompactuorescent
lamptypes.Seealso‘Specicationdataluminaires’.
HFP
Electronicballastforvariousuorescentlamptypeswithwarm-start
principle.Seealso‘Specicationdataluminaires’.
HFR
Electronicregulatingballastforvariousuorescentlamptypesby
whichlightdimmingispossible.ThemainrangesofHFRballastsallow
step-lessdimmingdownto3%.Seealso‘Specicationdata
luminaires’.
Horizontal illuminance (E
hor
)
Illuminance incident on the horizontal surface.
Unit: lux (lx) = lm/m
2
Symbol: E
hor
HPI Plus lamp
Metal-halide high-intensity discharge lamp combining high luminous
efcacywithwhitelightofmoderatecolorrendering.Mainindoor
applications are big industrial halls and lighting of discount stores,
hyper-/supermarketsandDIYshops.HPIPluslampsareusuallyapplied
inhigh-bayluminairesandoodlights.
Illuminance
Theluminousuxdensityatthesurfacebeinglit.Theilluminance
in the full summer sun is approx. 100 000 lux. Recommended
illuminances for work places range from 200 lux for rough work to
2000 lux for detailed or critical work.
Unit: lux (lx) = lm/m
2
Symbol: E
Infrared remote control
Inofcesandmeetingroomswherethelightingrequirementchanges
frequently,wirelessinfraredcontrolofferstheexibilitytosetthe
lighting and change it at any time.
Indirect lighting
Lighting by means of luminaires with a light distribution such that
notmorethan10percentoftheemittedluminousuxreachesthe
working plane directly, assuming that this plane is unbounded.
Induction lighting QL
Electrode-less induction lighting system characterized by good light
quality,highluminousefcacyandaphenomenallife(60000hours).
Jet-proof luminaire
Luminaire constructed to withstand a direct jet of water from any
direction.
LED
Light Emitting Diode used as a light source. Solid-state semiconductor
devicethatconvertselectricalenergydirectlyintolightofaspecic
color or white light.
Light output ratio (LOR)
Ratio of
the total light emitted by a luminaire to the total light output
of the lamp(s) it contains measured at standard operating conditions.
Lumen depreciation
The decline in the light output of a light source during its lifetime.
Luminaire
Appliancethatdistributes,ltersortransformsthelightgivenbyalight
source (LED or lamp), and which contains all the necessary elements
forxingandprotectingthelightsource(s)andfacilitatestheirpower
supply and operating conditions.
Luminance
The light intensity per square meter of apparent area of the light
source, luminaire or illuminated surface. Where surfaces are lit,
theluminancedependsuponbothlightinglevelandreection
characteristics of the luminous surface.
Unit: cd/m
2
Symbol: L
Technical data
Indoor_2008_Chapter_12_LIS.indb 55 20-05-2008 14:35:50
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