发明名称 |
Photoelectric color sensor for article sorting |
摘要 |
A device for photoelectrically sensing the color of a target object includes two more light sources having different characteristic ranges of chromaticity and at least one photosensitive element which receives light from the light sources after it has reflected off of the target object. A logic circuit serves to serially energize the light sources and receive resultant sample signals from the photosensitive elements. The logic circuit then generates a resultant signal as a function of the various sample signals and compares the resultant signal with a predetermined reference standard. If the difference therebetween exceeds a tolerance limit, the control circuit will output a reject signal.
|
申请公布号 |
US5021645(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19890378570 |
申请日期 |
1989.07.11 |
申请人 |
EATON CORPORATION |
发明人 |
SATULA, KEITH O.;SCHUCHMANN, RUSSELL P.;DUNCAN, EUGENE F. |
分类号 |
B07C5/342;G01J3/46;G01J3/50;G01J3/51;G01N21/95 |
主分类号 |
B07C5/342 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|