Patent ID: 9671352
Date: 2017-06-06
CPC Classifications: G01N

Claim:
1. A reel-to-reel inspection apparatus comprising: an unwinder configured to unwind a roll-shaped object; a first inspector configured to photograph a first surface of the object discharged from the unwinder; a second inspector configured to photograph a second surface opposite to the first surface of the object which has passed through the first inspector; a buffer dancer roller configured to press the object disposed at least one portion between the unwinder, the first inspector, the second inspector, and the winder to apply a tensile force to the object; a marker configured to indicate a mark on the object which has passed through the second inspector unit; a winder configured to wind in a roll shape the object which has passed through the marker; and a controller configured to synchronize at least two operations of unwinding roll-shaped object by the unwinder, photographing the first surface of the object by the first inspector, photographing the second surface of the object by the second inspector, indicating the mark by the marker, and winding in the roll shape the object by the winder, based on position information about the buffer dancer roller in a directing crossing a moving path of the object.