会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Method of and apparatus for detecting foreign substances
    • 异物检测方法及装置
    • US5225886A
    • 1993-07-06
    • US584120
    • 1990-09-18
    • Mitsuyoshi KoizumiYoshimasa Ohshima
    • Mitsuyoshi KoizumiYoshimasa Ohshima
    • G01N21/94
    • G01N21/94
    • Disclosed herein are method of and apparatus for detecting a foreign substance on an object by illuminating said object, detecting via an optical system light reflected from said object and detecting said foreign substance in distinction from a background. The object is exposed to first illumination such that light reflected from said background is suppressed but light reflected from said foreign substance is highlighted relative to the light reflected from said background. The light reflected from said object as a result of said first illumination is detected, thereby obtaining a first detection signal. The object is exposed to second illumination such that light reflected from said background is free from suppression relative to the light reflected from said substance as a result of said second illumination. The light reflected from said object as a result of said second illumination is detected, thereby obtaining a second detection signal. Foreign-substance-highlighting processing is performed on said first detection signal by using said second detection signal, whereby said substance is detected.
    • 本文公开了通过照射所述物体来检测物体上的异物的方法和装置,通过光学系统检测从所述物体反射的光并检测所述异物与背景的区别。 对象被暴露于第一照明,使得从所述背景反射的光被抑制,而从所述异物反射的光相对于从所述背景反射的光被突出显示。 检测由于所述第一照明而从所述物体反射的光,从而获得第一检测信号。 物体暴露于第二照明,使得从所述背景反射的光相对于作为所述第二照明的结果从所述物质反射的光没有抑制。 检测作为所述第二照明的结果从所述物体反射的光,从而获得第二检测信号。 通过使用所述第二检测信号对所述第一检测信号进行异物突出处理,从而检测所述物质。