Cognex In-Sight 1720 Series, Manual

Page: 26 / 56

Install the Wafer Reader
14
Table 3-1 shows examples of the wafer reader’s vertical working distances and the
corresponding horizontal working distances required at the same focal setting. For more
information on adjusting the focus, refer to Section 4.4.
Table 3-1: Working Distances
Corresponding Horizontal Working Distance
Recommended Mirror Mounting Optional Mirror Mounting
Vertical Working
Distance
To Mirror Mount
Face
To Housing To Mirror Mount
Face
To Housing
5.0mm N/A N/A N/A N/A
10.0mm N/A N/A N/A N/A
15.0mm N/A N/A N/A N/A
20.0mm N/A N/A N/A N/A
25.0mm 1.0mm N/A 1mm N/A
30.0mm 6.0mm 4.9mm 6.0mm N/A
40.0mm 16.0mm 14.9mm 16.0mm 4.1mm
50.0mm*
26.0mm* 24.9mm* 26.0mm* 14.1mm*
60.0mm 36.0mm 34.9mm 36.0mm 24.1mm
70.0mm 46.0mm 44.9mm 46.0mm 34.1mm
80.0mm 56.0mm 54.9mm 56.0mm 44.1mm
* Indicates factory-set working distances