| 发明名称 | Method and arrangement for measuring blowing structures of a prestressed disc | ||
| 摘要 | A method for measuring blowing structures of a prestressed disc is described. The method has the steps of: (a) irradiating at least one analysis area of the disc with linearly polarized light from a radiation source at an angle of incidence and recording an image at least of the analysis area at an angle of observation using at least one detector, (b) supplying the image to an evaluation unit, and (c) using the evaluation unit to read a brightness profile along an analysis line on the image, to determine the local maxima and the local minima of the brightness profile, and to determine an intensity index by means of the difference between a brightness mean of the local maxima and a brightness mean of the local minima. | ||
| 申请公布号 | US9207186(B2) | 申请公布日期 | 2015.12.08 |
| 申请号 | US201314380245 | 申请日期 | 2013.04.10 |
| 申请人 | SAINT-GOBAIN GLASS FRANCE | 发明人 | Schulz Valentin;Hermanns Lutz;Pape Lars;Kremers Stephan |
| 分类号 | G01B11/16;G01N21/88;G01N21/896;G01N21/958;G01L1/24;G01N33/38 | 主分类号 | G01B11/16 |
| 代理机构 | Steinfl & Bruno LLP | 代理人 | Steinfl & Bruno LLP |
| 主权项 | 1. A method for measuring blowing structures of a prestressed pane, comprising: (a) irradiating at least one analysis area of the pane with linearly polarized light from a radiation source at an angle of incidence, wherein a first surface of the pane is turned toward the radiation source, and an image at least of the analysis area is recorded at an angle of observation using at least one detector, (b) supplying the image to an evaluation unit, and (c) by means of the evaluation unit (c1) reading a brightness profile along an analysis line in the image,(c2) determining local maxima and local minima of the brightness profile, and(c3) determining an intensity index by means of a difference between a brightness mean of the local maxima and a brightness mean of the local minima. | ||
| 地址 | Courbevoie FR | ||