调查：想请一个外国专家来中国讲digital projector的设计！！

stevenwu

<P>如果4天的课程，每人收费1万，国内需求会如何？</P>
<P>以下是大概的内容提纲：</P>
<P>Course SyllabusDay 1 Digital Projector Optical System OverviewLight Sources: Mercury and Xenon
Lamp Operating ParametersSpectral Output of Hg and Xe LampsXe BulbsIllumination Systems
Illumination System Types and CharacteristicsLight Engine Illumination Layouts for Different ModulatorsIllumination System Component Parts, Name, Function, OperationExample Layouts of DMD, LCD, LCoS Illumination SystemsIllumination System Tradeoff MatrixSpatial Light Modulators: DMD, LCD, LCoS
Reflective SLM's, Performance Parameters, IssuesSLM Function in Illumination SystemExample Reflective SLM - DMD LayoutPolarization SLM's, Performance Parameters, IssuesTransmissive Polarization SLMReflective Polarization SLMExample Reflective Polarization SLM - LCoS LayoutAperture RatioSLM Tradeoff/Comparison MatrixImaging and Mapping Systems
Transforms from Object Plane to Image PlaneFirst Order Optical Imaging Properties: Magnification, FOV, OAL, EFL, etc.Human Visual SystemTilted Object and Image PlanesModulator Offset: Definition, Performance Costs  BenefitsProjection Lens Performance Parameters, SpecificationImage Keystone: Cause and CorrectionOptical System Performance
Definition  Discussion of EtendueThroughput Calculation Examples - Light from Bulb to ScreenFull Projector Throughput CalculationSequential Color Filter Time Average TransmissionProjector System Measurement and Testing
Screen Lumens, Total Lumens, Illumination Uniformity Testing  MeasurementSolid Angle and Projected Solid AngleColor Chromaticity  Chromaticity UniformityContrast Measurement: ANSI  JBMAColor ConvergenceProjection Bulb Performance MeasurementsDistortion, Field Curvature, Resolution, MTF, etc.
<P> </P>Day Two Illumination System Layout, Design and AnalysisApplied Digital Projector Design and Analysis (ADPD) Overview and ObjectivesCreate ray file of Hg lamp with reflectorVerify ray file is performing as expectedDiscuss home built arc model of volume emitterDesign UV/IR filter substrateDesign sequential RGBW filter wheelDesign hollow integrating rodPerform integrating rod analysis ? length vs. uniformity and transmissionLayout of illumination system magnification and conjugate plane orientationsDesign condenser lens assembly and analyzeDesign field lens assembly and analyzeDesign TIR prism front half and analyzeDesign TIR prism back half and analyzeDesign DMD mirrors for testing illumination systemCreate and install entrance pupil plane and diameterPerform illumination system ray trace and analysisReview Day one Accomplishments</P>

<P>Day Three - Discuss day two objectives and short review and questions of day oneMore illumination system ray trace and analysisCreate array of DMD mirrors with proper tilt angles, size and spacingPerform analysis with tilts for on and off statesPerform illumination system ray trace and analysis.Insert a pre-designed catalog projection lens assemblyShow layout in sequential Zemax and perform analysisCreate projection lens in non-sequential ZemaxPerform illumination system analysis on projection screenPerform imaging analysis on projection screen from DMD to screenShow how to create different analysis screens for example: ANSI contrast, test rectangles, resolution charts, colored grids, etc.Perform system test ray tracing such as contrast, uniformity, MTFDo some limited scattered light analysis on the systemPerform a few system perturbationsCourse Review</P>

<P>
What is Color?Color MixingHuman Eye - The Color InstrumentThe 1931 CIE Chromaticity DiagramColor TemperatureCorrelated Color TemperatureColor Gamut of Display DevicesLight Source Power Spectral DistributionXenon and Mercury Bulbs for Digital Projection SystemColor in the Optical Elements of the Light EngineColor in Spatial Light Modulators - DLP, LCD, and LCoSSource Media Color Representation of SignalElectronic Color Signal PathProgressive ScanDigital ScalingColor Space TransformationsVideo EnhancementGamma ProcessingDLP Pulse Width Modulation and Color Coding FramesColor in the Projection EnvironmentColor Perception and BackgroundMeasurement of Color in Digital ProjectorsColor Measurement InstrumentsColor Measurement TestsColor Measurement StandardsImproving Color in Digital Projectors</P>

lidy

原理懂的人很多,只是加工是国内的瓶颈,谁愿出这么多前去听他的课.

stevenwu

<P>什么叫原理都懂？原子弹、卫星的原理高中就学过，你会制造吗？你会设计吗？</P>

simem

<P>国外请来的专家, 我想应该会有些最新的国际行情. </P>
<P>投影系统包括投影镜头的成像设计, 还包括光引擎微透镜阵列的照明设计, 还有偏振分光, 色度之类的分析, 还是挺复杂的.</P>

simem

现在手机镜头的变焦是大势所趋, 现在韩国两家公司推出了3倍的变焦镜头, 总长20mm, 折叠式的.

如果楼主专门搞一些变焦镜头的设计陪训, 包括手机和通用相机变焦镜头的培训, 我想参加培训的人会比较多些. 楼主不妨考虑一下.

相对来说做数码投影仪的公司数量和规模都比较有限, 大部分数码投影镜头的公司规模也不大.

qwqwqwqw

不會吧 光機設計很多大哥都有經驗

誰會花那麼多錢 去上課阿

便宜一點還有可能會去聽聽

bignet

1万的课程，可能有8500块已经了解了，有没有1500块的答疑课程啊，呵呵

lidy

我来提供一个网址,自己去学就行了.什么投影仪器,变焦镜头都有.

只要你想学,你也是专家,不要挂一个外国专家的名头来赚钱

http://www2.ipdl.ncipi.go.jp/BE0/

stevenwu

本来想国内没有一家能够正经做出投影仪（包括背投和前投），现在国内的彩电和投影仪系统的光学系统都是买国外的再来装，我觉得这才是中国需要提高的东西，我们有这方面的资源，请人家过来，想真正能够提高国内这方面的水平。

看来大家都已经会了，那就算了。

lidy

四天的课程就能将所有的关键技术教给你?别太天真了,我想也就是泛泛而谈吧,我们现在缺的不是设计水平和基础知识的了解,而是如何将设计的东西做出来,我在国外深深的了解这点,比如我现在设计的镜头在日本生产很简单,但拿到中国,能生产吗?投影镜头会设计的人估计也不少,光学引擎原理大家都懂的.结构调整都会,但这些零件的加工却不行.这才是中国的发展之障碍.

bignet

同意，我觉得大陆做产品最难的是把质量做的稳定，比如做投影机，出光保证好画面很简单，倒是散热问题好麻烦，呵呵