| 摘要 |
A table-shaped jig for positioning elements on a support in accordance with a reference layout characterized by a reference plane receiving the reference layout, a first camera mounted for movement above the reference plane, a support plane for receiving a support for the elements, a second camera positioned above said support plane and being mounted for movement in a second plane and an arrangement for causing the second camera to move in a following relationship to movement of the first camera and an electronic arrangement for superimposing the images from the two cameras on a screen. |
