Unverified80% confidenceFactTime unknown
抗光幕分黑栅（菲涅尔）和锯齿两种：黑栅工艺抗天花板顶光能力强适合超短焦；锯齿状（棱镜）结构主要抗侧向环境光，配长焦投影效果更好
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified长焦/标准投影+侧面或顶部有环境光，选ALR抗光幕（锯齿光学结构）；超短焦投影必须配菲涅尔抗光幕（同心圆结构），二者不可混用，否则完全失效76% similarUnverified罗马杆（明杆）安装遮光率天生打折，杆与顶之间必漏光；追求遮光优先选轨道暗装+帘盒或加装遮光挡光片，罗马杆更适合装饰性半遮光需求75% similarUnverified顶装（帘盒/杆贴天花板安装）比墙装遮光效果好很多，能消除顶部漏光；配合L型侧挡光板或磁吸边条可实现接近影院级全黑，追求极致遮光应优先顶装+侧挡方案75% similarUnverified罗马杆安装遮光会在杆与顶部留缝漏光，追求全黑需选轨道内嵌或加装遮光盒/顶部魔术贴74% similarUnverified背板材质选亚克力时透明底板视觉更悬浮但边缘易反光，黑色/磨砂底板对比度高更适合暗色背景墙；硅胶底板可弯折适合贴曲面但灯光均匀度略差73% similar
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