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1. 发明授权

US4171481A Apparatus for inspecting bottles having elliptic light converging means 失效
标题翻译：用于检查具有椭圆光会聚装置的瓶子的装置
公开(公告)号：US4171481A
公开(公告)日：1979-10-16
申请号：US887965
申请日：1978-03-20
申请人： Yoshitada Mima , Youji Kanno , Nobuo Sato , Yasuhiko Hara , Yosiaki Tomita , Takuro Karakawa , Masahiro Miyamoto , Toshitaka Kano
发明人： Yoshitada Mima , Youji Kanno , Nobuo Sato , Yasuhiko Hara , Yosiaki Tomita , Takuro Karakawa , Masahiro Miyamoto , Toshitaka Kano
IPC分类号： G01N21/90 , G01N21/32
CPC分类号： G01N21/90
摘要： An apparatus of the invention for inspecting bottles for detecting flaws or contamination in the bottles relies upon the light converging function performed by one open-sided elliptic cylinder having reflective inner surface and two foci. The point or line to be inspected of the bottle is positioned at one of the two foci, while at least one light receiving element is disposed at the other focus. A beam of light is applied to the point or line to be inspected of the bottle, so that, if there is any defect such as flaw or contamination, the light is reflected irregularly by the bottle in indefinite direction. The irregularly reflected fractions of light are reflected by the inner surface of the elliptic cylinder and converge on the light receiving element disposed at the other focus, so as to be effectively received by the same element. the presence of the defect, if any, is detected from the output of the light receiving element. Another light receiving element may be disposed outside of the elliptic cylinder so as to receive the fraction of light passed through the bottle.
摘要翻译：本发明的用于检测瓶子中的缺陷或污染的瓶子的装置依赖于一个具有反射内表面和两个焦点的开放式侧面椭圆筒执行的聚光功能。要检查瓶子的点或线位于两个焦点中的一个，而在另一个焦点处设置至少一个光接收元件。将光束施加到要检查的瓶子的点或线上，使得如果存在诸如缺陷或污染的缺陷，则不规则地由灯在不定的方向上反射光。光的不规则反射分数被椭圆柱体的内表面反射并且会聚在设置在另一焦点上的光接收元件上，以便被同一元件有效地接收。从光接收元件的输出检测缺陷的存在（如果有的话）。另一个光接收元件可以设置在椭圆柱体的外部，以便接收通过瓶子的一部分光。

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