Methods and apparatus for inspecting a workpiece with edge and c

Details Methods and apparatus for inspecting a workpiece with edge and c Methods and apparatus for inspecting a workpiece with edge and c

1997-09-23

1999-07-27

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

25055922, G01N 2186

Patent

active

059294590

ABSTRACT:
Systems and methods for inspecting a workpiece, such as a surface mount device. The systems and methods can determine the height, edges, and centers of leads of the surface mount device. The systems and methods also permit lead co-linearity and/or co-planarity values to be derived with relatively good repeatability.

REFERENCES:
patent: 4754555 (1988-07-01), Stillman
patent: 4959898 (1990-10-01), Landman et al.
patent: 5043589 (1991-08-01), Smedt et al.
patent: 5162866 (1992-11-01), Tomiya et al.
patent: 5212390 (1993-05-01), LeBeau et al.
patent: 5319442 (1994-06-01), Rosser

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