Patent ID: 11947094
Assignee: ILLINOIS TOOL WORKS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  B  H | IPC B  G  H

Claim 14:
15. A vision system for use in a stencil printer configured to print an assembly material on an electronic substrate, the vision system comprising:
a housing;
a dual camera assembly supported by the housing, the dual camera assembly including a bracket, a first lens and a second lens secured to the bracket, the first lens and the second lens being spaced from each other and extending perpendicularly from the bracket, the dual camera assembly further including a first programmed camera configured to obtain an image of the stencil via a first optical path through the first lens and a second programmed camera configured to obtain an image of the electronic substrate via a second optical path through the second lens; and
a prism assembly supported by the housing and configured with the dual camera assembly to provide a first optical path that looks vertically up at a bottom of a stencil and a second optical path that looks vertically down on the electronic substrate, the prism assembly including
a support having a base and a retainer, and
a prism structure that is positioned on the base and is secured in place with respect to the base when securing the retainer to the base, the prism structure being configured to direct light along the first optical path to the stencil and to direct light along the second optical path to the electronic substrate, and to direct an image from the stencil along the first optical path to the first programmed camera via the first lens and an image from the electronic substrate along the second optical path to the second programmed camera via the second lens.