发明名称 |
DISTORTION INSPECTION APPARATUS OF A GLASS PLATE |
摘要 |
<p>In a distortion inspection apparatus of a glass plate, a light and dark contrast pattern is sensed by an image sensor through a glass plate. The number of bits corresponding to a light or dark portion is detected from bipolar image data which are divided into a plurality of bits along each of parallel scanning lines assumed upon a surface of the glass plate. Then, a distortion state of the surface of the glass plate is discriminated in accordance with the differences among the thus detected number of bits and a reference value thereof. In such an arrangement, quantitative distortion discrimination can be performed.</p> |
申请公布号 |
CA1227276(A) |
申请公布日期 |
1987.09.22 |
申请号 |
CA19840469021 |
申请日期 |
1984.11.30 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
KITAYA, KATSUHIKO;ICHISE, NAGAYOSHI |
分类号 |
G01B11/16;G01B11/30;G01N21/41;G01N21/896;G01N21/958;(IPC1-7):H04N7/18 |
主分类号 |
G01B11/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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