Printed circuit board visual inspection performance: a comparative analysis of mono- and stereovision macroscopic views

Steven F. Wiker; Ken Stewart; Tommey Meyers; Peregrin Spielholz

doi:10.1117/12.274499

15 May 1997 Printed circuit board visual inspection performance: a comparative analysis of mono- and stereovision macroscopic views

Steven F. Wiker, Ken Stewart, Tommey Meyers, Peregrin Spielholz

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Proceedings Volume 3012, Stereoscopic Displays and Virtual Reality Systems IV; (1997) https://doi.org/10.1117/12.274499
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

The objective of this study was to compare visual inspection performance of printed circuit boards (PCBs) and flexible circuit boards (flex) when using monovision and autostereovision modes of the Dimension Technologies' Virtual Window^TM. We measured completion times for visual inspections of PCBs and flex cards, and detection of manufacturing or post manufacturing defects in each of the products. In the case of printed circuit boards, the stereovision display mode produce faster inspection (approximately 17% improvement in inspection rate) when compared against the monovision mode. No change in inspection performance was observed with flex cards, or in the number of flaws detected, with the introduction of autostereovision. Recommendations are made for improving the effectiveness of the Virtual Window for visual inspection of printed circuit boards and like phenomena.

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Steven F. Wiker, Ken Stewart, Tommey Meyers, and Peregrin Spielholz "Printed circuit board visual inspection performance: a comparative analysis of mono- and stereovision macroscopic views", Proc. SPIE 3012, Stereoscopic Displays and Virtual Reality Systems IV, (15 May 1997); https://doi.org/10.1117/12.274499

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KEYWORDS

Inspection

Optical inspection

Visualization

Microscopes

LCDs

Eye

Flexible circuits

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