| 摘要 |
The invention relates to the optical control of sufficiently transparent bodies, in particular articles such as bottles (B) or flasks distributed in line on a horizontal table conveyor in front of the apparatus, each light emitter (21) of which can be reduced to a simple screen providing a luminous background. …<??>Rapid electronic examination is carried out by lines, in the direction of motion over the image and is matched with a slower complementary transverse scanning on the receiver. …<??>First and foremost, recourse is had to a device whose receiver, equipped with a linear camera (23), combines with the latter's objective and its "horizontally" arranged network of photoelectric cells, an optical reflection system completing the exploration with a "vertical" mechanical scanning movement. …<??>It is thus possible to combine control of appearance and precise dimensional control, at high rate. …<IMAGE>… |
