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Headlights of car , dentist mirrors ,makeup mirrors ,shaving mirrors , satellite dishes ,telescope ,torches , electron microscope ,flash light mirror,visual bomb detectors ....... CONCAVE 
camera phones, thumb tacts , christmas baubles,sunglasses , passenger side mirror , magnifying glass , ceiling dome mirrors ,in securities ( ATM) ,used in large hospitals , corners of the roads to avoid collisions .... CONVEX 
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