Title:
機械視覚システムのためのパターン化された照明方法および装置
Document Type and Number:
Japanese Patent JP2005531000
Kind Code:
A
Abstract:
This application relates to an apparatus and method for providing patterned illumination fields for use within process control and article inspection applications. More specifically, it pertains to the use of patterned illuminators to enable visual surface inspection of polished objects such as ball bearings. The use of patterned illuminators properly disposed in relation to a polished part under inspection allows small surface imperfections such as scratches and pits to become visible against the normal surface background. The use of carefully engineered illuminators facilitates advantageous defect-site scattering from generally dark field sources. The patterned nature of the illuminators defined by this invention allows the complete surface of three-dimensional parts to be effectively highlighted using dark field illumination fields.
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Inventors:
COCHRAN,Don,W.
Sec, Stephen, Dee.
Palombo, Thomas, H.
Yoder, Michael, Elle.
Bouha, jess
Graves, Terry, Elle.
Sec, Stephen, Dee.
Palombo, Thomas, H.
Yoder, Michael, Elle.
Bouha, jess
Graves, Terry, Elle.
Application Number:
JP2004516052A
Publication Date:
October 13, 2005
Filing Date:
June 20, 2003
Export Citation:
Assignee:
PRESSCO TECHNOLOGY INC.
International Classes:
G01N21/84; G01N21/00; G01N21/88; G01V8/00; G06M7/00; G08B13/18; H01J40/14; F21V; (IPC1-7): G01N21/84
Attorney, Agent or Firm:
Takenaga Kawakita