Machine vision system for measuring heights of items

Details Machine vision system for measuring heights of items Machine vision system for measuring heights of items

2007-02-20

2007-02-20

Pham, Hoa Q. (Department: 2877)

Optics: measuring and testing

Shape or surface configuration

Triangulation

C356S622000, C356S237100

Reexamination Certificate

active

10885315

ABSTRACT:
A machine vision system (1) has two laser sources (2, 3) to illuminate a solder deposit from both sides for comprehensive coverage without occlusion. The camera (4) has an FGPA (32) programmed to define a subset of the sensor array (20) as a region of interest to be processed for each laser source (2, 3). This reduces the amount of data transfer and processing required. The image line (31) is dynamically maintained in the region of interest by adjustement of camara Z position according to warp of the substrate (S).

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