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关于DLP LightCrafter 4500 Projector的封装及镜头问题

Other Parts Discussed in Thread: DLPLCR4500EVM, DLP4500

请问 DLP LightCrafter 4500 Projector 购买的时候,是封装好了的吗?还是像网站上的图片一样,芯片都漏出来?另外,请问 DLP LightCrafter 4500 Projector 里面的投影镜头可以拆换吗?镜头的接口是什么类型的呢?谢谢!