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Inventor: Abbott; Jack E.
Address: Santa Cruz, CA
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4827436 |
Non-contact high resolution displacement measurement technique |
May 2, 1989 |
| Apparatus is disclosed for optically detecting the position of an edge of a workpiece (such as an IC lead tip) in a sensing plane, involving the emission of electromagnetic energy from a known source region in the sensing plane such as to cause the edge to create a shadow having a pe |
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