Christie CDXL-60 Manual

Christie Projektor tilbehør CDXL-60

Læs gratis den danske manual til Christie CDXL-60 (4 sider) i kategorien Projektor tilbehør. Denne vejledning er vurderet som hjælpsom af 27 personer og har en gennemsnitlig bedømmelse på 3.6 stjerner ud af 14 anmeldelser. Har du et spørgsmål om Christie CDXL-60, eller vil du spørge andre brugere om produktet?

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Side 1/4

Christie Xenolite

lamps

and Christie Solaria

™

Series projectors

Usage best practices

How to calculate the amount of light required

The basic formula to calculate this theoretical light requirement is:

 Lumens (L) = Average Screen Brightness desired (average fL)

X Screen Area (sq ft)

• Givenagoodlightdistribution,the“AverageScreenBrightness”

canbeestimatedbymultiplyingthecenterbrightnessdesiredby

0.95.Generallyacceptedpracticeforthetargetcenterbrightness

is:14fLfor2Dand4.5fLfor3D(lightmeasurementtakenthrough

3Dglasses).

 Afteryouhavethe“Lumens”numberyouwoulddivideitbyall

signicantsystemefciencies.Someexampleswouldbe:

•

Screengain:1.0to2.4.Silverscreensare2.4.Thisisaveryimportant

partofthisequationandcareshouldbetakentomakesurethis

numberisaccurate.Ifthescreeninquestionisnotnewthenthe

overallgainshouldbemeasuredproperly.Anydegradation

ordebrisonthescreenwillreducethescreengain.

• Portwindowefciency:96%efciencyistypicalforgoodportglass.

• LossduetocolorcorrectionrequiredformeetingDCIcolor

specications:97%efciencyistypical.

• 3Dsystemlightefciency:thisnumbercanbeanywhere

from10%to30%efciencydependingonthe3Dsystemused.

• Othereffectslikedownangleandscreencurvedomakea

differenceforlightdistributionbuttheyonlyeffectthese

calculationsiftheyareexcessive.

 Calculation:Lumens Required (L) = Lumens (L) / (Screen Gain X Port

Window Efﬁciency X Color Correction Efﬁciency X 3D Efﬁciency)

 Theresulting“LumensRequired”numberyougetwouldbethe

“MINIMUMlumenrequirement”tomeetthedesiredlightlevels.

How to select the right projector/lamp combination

that will provide enough light to satisfy screen

brightness requirements

Thereshouldbeenoughbrightnessavailableevenattheendof

thelamp’slifetomeetyourspeciedcenterbrightnessrequirement.

Yourcompany’slampchangingpolicymayneedtobereviewedto

makethisdecision.

 Thereisanaturalbrightnessdrop-offthatoccurswithanyXenonlamp

duringitslife.Thisbrightnesscurveistypicallysharpatthebeginning

ofthelamp’slifeanddropsslowerafterthisinitialperiod.Leaving

thelampat100%powerthroughoutitslifewouldgivethistypical

brightnesscurve:

Lamp life

Starting lamp at 100% power

Maintaining lamp at 100% power

Point at which

brightness is

unacceptable

Approximately

50% brightness

100% Rated

brightness

(lamp/projector

combination)

Brightness

 Thisinitialdrop-offinbrightnessismainlyduetothere-shapingofthe

electrodesinsidethelamp.Thearcbetweentheelectrodesinsidethe

lampwillmoveslightlyduringthisperiod.Re-aligningthelampoften

canminimizethisdrop-off.Thisre-alignmentshouldbedoneatleast

everytimetheequipmentisserviced.Themorefrequentthisisdone,

themorelightefciencycanbepreserved.

 100%Ratedbrightnesswouldindicatetheuseofanewlamprunning

at100%power.

USAGE BEST PRACTICES

Optimize your Christie

digital cinema system

ChristieXenolite

lampscanproduceremarkablebrightness

andcolorconsistencywithexcellentresistancetoicker,

ignitiondifcultyandexplosion.Withthissuperiorperformance

comesgreateconomy.Herearesomeusageguidelines

thatcanbeappliedtogetoptimumperformancefromthe

ChristieXenolitelampandChristieSolaria

™

Seriesprojector

combination.Ifyouneedtechnicalsupporttohelpyou

withthis,pleasedonothesitatetocontactChristie

technicalsupport.

Produkt Specifikationer

Mærke:	Christie
Kategori:	Projektor tilbehør
Model:	CDXL-60

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