Visual inspection method and apparatus for contact lenses
    2.
    发明公开
    Visual inspection method and apparatus for contact lenses 失效
    用于隐形眼镜目视检查方法和装置。

    公开(公告)号:EP0660098A3

    公开(公告)日:1997-06-04

    申请号:EP94120670.8

    申请日:1994-12-27

    IPC分类号: G01M11/02

    CPC分类号: G01M11/0278 G01M11/0264

    摘要: In a contact lens visual inspection method and apparatus, a contact lens insertion portion (33a) of a container (33) is first imaged by an image pickup device and then an area which locates on the container and is unnecessary for the visual inspection of a contact lens is extracted from the image of the contact lens insertion portion to form a mask image. Thereafter, a system containing the contact lens insertion portion (33a) of the container, the preservation liquid filled in the contact lens insertion portion and the contact lens placed in the contact lens insertion portion is imaged as an inspection object by the imaging device to obtain an inspection object image, the inspection object image is overlapped with the mask image, and the mask image is subtracted from the inspection object image to set as a visual inspection area the area corresponding to a subtracting image obtained by said subtracting step. The defects of the contact lens such as soil, foreign matters, scratch, breakage, peripheral damage, etc. detected for the visual inspection area.

    Visual inspection method and apparatus for contact lenses
    3.
    发明公开
    Visual inspection method and apparatus for contact lenses 失效
    Verfahren und Vorrichtung zurSichtprüfungvon Kontaktlinsen。

    公开(公告)号:EP0660098A2

    公开(公告)日:1995-06-28

    申请号:EP94120670.8

    申请日:1994-12-27

    IPC分类号: G01M11/02

    CPC分类号: G01M11/0278 G01M11/0264

    摘要: In a contact lens visual inspection method and apparatus, a contact lens insertion portion (33a) of a container (33) is first imaged by an image pickup device and then an area which locates on the container and is unnecessary for the visual inspection of a contact lens is extracted from the image of the contact lens insertion portion to form a mask image. Thereafter, a system containing the contact lens insertion portion (33a) of the container, the preservation liquid filled in the contact lens insertion portion and the contact lens placed in the contact lens insertion portion is imaged as an inspection object by the imaging device to obtain an inspection object image, the inspection object image is overlapped with the mask image, and the mask image is subtracted from the inspection object image to set as a visual inspection area the area corresponding to a subtracting image obtained by said subtracting step. The defects of the contact lens such as soil, foreign matters, scratch, breakage, peripheral damage, etc. detected for the visual inspection area.

    摘要翻译: 在隐形眼镜目视检查方法和装置中,容器(33)的隐形眼镜插入部(33a)首先由图像拾取装置成像,然后位于容器上并且不需要用于视觉检查的区域 从隐形眼镜插入部的图像中提取隐形眼镜以形成掩模图像。 此后,将包含容器的隐形眼镜插入部分(33a),填充在隐形眼镜插入部分中的保存液体和放置在隐形眼镜插入部分中的隐形眼镜的系统通过成像装置成像检查对象,以获得 检查对象图像,检查对象图像与掩模图像重叠,并且从检查对象图像中减去掩模图像,以将与通过所述减法步骤获得的减法图像相对应的区域设置为目视检查区域。 目视检查区域检测到隐形眼镜的缺陷,如土壤,异物,划伤,破损,外围损伤等。