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公开(公告)号：EP0174939B2
公开(公告)日：1998-08-26
申请号：EP85900918.5
申请日：1985-01-25
CPC分类号： G01N21/8806 , G01N21/88 , G01N21/9515
摘要： Electro-optical sensing of form type and other defects on surfaces such as sheet metal or plastic panels. Method and apparatus are disclosed for detection and quantification of defects such as dents, creases, low spots, flat spots, etc. which are a result of the manufacturing, material handling and assembly process. In one embodiment (Fig. 3) the sensing apparatus includes a laser (201) for illuminating an area (220) of the surface to be inspected. A retroreflective member (203) is positioned relative to the surface so that light reflected from the surface area (220) is retroreflected back to the surface to be re-reflected therefrom. A lens (210) images the returning light via a beam splitter (213) onto a detector (215).
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公开(公告)号：EP0174939A4
公开(公告)日：1988-05-03
申请号：EP85900918
申请日：1985-01-25
CPC分类号： G01N21/8806 , G01N21/88 , G01N21/9515
摘要： Electro-optical sensing of form type and other defects on surfaces such as sheet metal or plastic panels. Method and apparatus are disclosed for detection and quantification of defects such as dents, creases, low spots, flat spots, etc. which are a result of the manufacturing, material handling and assembly process. In one embodiment (Fig. 3) the sensing apparatus includes a laser (201) for illuminating an area (220) of the surface to be inspected. A retroreflective member (203) is positioned relative to the surface so that light reflected from the surface area (220) is retroreflected back to the surface to be re-reflected therefrom. A lens (210) images the returning light via a beam splitter (213) onto a detector (215).
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公开(公告)号：EP0174939B1
公开(公告)日：1993-07-28
申请号：EP85900918.5
申请日：1985-01-25
CPC分类号： G01N21/8806 , G01N21/88 , G01N21/9515
摘要： Electro-optical sensing of form type and other defects on surfaces such as sheet metal or plastic panels. Method and apparatus are disclosed for detection and quantification of defects such as dents, creases, low spots, flat spots, etc. which are a result of the manufacturing, material handling and assembly process. In one embodiment (Fig. 3) the sensing apparatus includes a laser (201) for illuminating an area (220) of the surface to be inspected. A retroreflective member (203) is positioned relative to the surface so that light reflected from the surface area (220) is retroreflected back to the surface to be re-reflected therefrom. A lens (210) images the returning light via a beam splitter (213) onto a detector (215).
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公开(公告)号：EP0174939A1
公开(公告)日：1986-03-26
申请号：EP85900918.0
申请日：1985-01-25
CPC分类号： G01N21/8806 , G01N21/88 , G01N21/9515
摘要： Détection électro-optique du type de forme et d'autres défauts sur des surfaces telles que des tôles métalliques ou des panneaux en plastique. On décrit un procédé et un dispositif de détection et de quantification de défauts tels que brèches, plissements, dépressions, points plats, qui sont le résultat de la fabrication de la manipulation des matériaux et du processus d'assemblage. Dans un mode de réalisation (fig. 3) le dispositif détecteur comprend un laser (201) servant à éclairer une zone (220) de la surface à examiner. Un organe rétroréfléchissant (203) est positionné par rapport à la surface de sorte que la lumère réfléchie par la zone de surface (220) est renvoyée vers la surface et est réfléchie à nouveau par celle-ci. Une lentille (210) produit une image avec la lumière de retour via un diviseur de faisceaux (213) sur un détecteur (215)
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