DLP&ampamp;reg; System Optics Application Note .pdf

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1、ApplicationReportDLPA022–July2010DLP™SystemOptics.....................................................................................................................................................ABSTRACTThisapplicationnotedescribestypicalarchitecturesforoptic

2、alsystemsemployingasingleDMDdeviceforprojectionapplications,primarilyforsmallportableprojectors.Prosandconsofarchitecturesarediscussedingeneralterms.Front-andrearscreenapplicationsarediscussedbriefly.Techniquesandtradesformaximizingcriticalsystemperformanceparam

3、eters,definedbytheapplication,arediscussed.UniqueconsiderationsforDMDdevicesinopticalsystemsareaddressed.Ageneraldiscussionofimagequalityandspecificdesignmetricsforacceptableperformanceisincluded.NotethemajorityofthisdocumentdescribestheuseoftheDMDinaprojectiono

4、pticalsystem,andtheDMDisdesignedwiththisapplicationinmind.However,therearemanyotherwaystousetheDMDtomanageandsteerlightenergy.Thisdocumentaddressessomeofthenon-projectionapplicationsbriefly,butcannotanticipatealluses.Contents1OverviewofDMDUseinProjectionOpticalS

5、ystems..................................................................22ProjectionOpticalSystemArchitectures.................................................................................22.1TelecentricArchitectures...........................................

6、...............................................32.2NontelecentricArchitectures......................................................................................53ProjectionOpticalSystemDesignConsiderations.....................................................

7、................83.1Illumination-SystemComponentsandDesignParameters...................................................83.2Projection-SystemComponentsandDesignParameters...................................................134SystemPerformanceTuningTipsandTechnique

8、s...................................................................154.1ContrastRatio................................................................................