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• n  a transparent filter that reduces the light (or some wavelengths of the light) passing through it

• diffusing screen

News & Articles

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• My Not-On-Facebook Life
  I wake up with Northern Europe's low winter light filtering through the blinds in my bedroom. The silence is near perfect. It's too early to hear the week-day procession of parents ferrying their kids to the neighbourhood school. The slamming concert of car doors and tearful wails of protest at another day wrenched from comforts of home and bed will filter through the single-glazed window panes ...
  Feb. 5, 2014 - TechCrunch