| 摘要 |
The invention relates to a device (1) for analyzing the optical quality of one or more at least partially transparent substrates (2), for example a glass ribbon, run past the device (1), comprising: an illuminating system (4, 6) for forming an image in transmission through the substrate (2) and/or in reflection from the substrate (2); a camera (12) for acquiring the image transmitted and/or reflected by the one or more substrates (2); and a control unit (14) comprising a memory (15) in which programs for controlling the acquisition of the images by the camera (12) are stored, in which: the illuminating system (4, 6) can simultaneously produce illumination of different types in separate illumination zones (8A, 8B, 8C, 10A, 10B, 10C) through which the or each substrate (2) is intended to run; the camera (12) is a matrix camera and can acquire an image with a plurality of rows of pixels, the device (1) being configured such that the camera (12) can simultaneously acquire images with a plurality of groups of adjacent rows of pixels, corresponding, respectively, to said separate zones (8A, 8B, 8C, 10A, 10B, 10C); and said control programs are able to control the camera (12) so that the various acquisitions are synchronized with the run speed of the one or more substrates (2) such that at least one given fixed point on the substrate (2) is the subject of an image acquired by a first of said groups of rows of pixels and, at least, of an image acquired by a second group that is different from the first. |
