Cognex In-Sight 7600, Справочное руководство

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Working Distance and Field of View (S-Mount/M12 Lenses)
The working distance is the distance from the In-Sight illumination accessory cover (ISLM-7000-xx) to the part that needs
to be inspected. Field of view is what the vision system can see at that distance. As the working distance increases, so
does the size of the field of view.
Note :
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The following charts show the design field of view of the In-Sight S-Mount/M12 accessory lenses and is fully
mapped onto the image sensor. Additional field beyond the design field of view may have vignetting. For
supported In-Sight lenses, refer to S-Mount/M12 Autofocus Accessories on page 15 and S-Mount/M12
Manual Focus Accessories on page 17 .
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For the In-Sight 7802P and 7902P, the S-Mount/M12 lens image circle size is slightly smaller than the vision
system’s image sensor size, resulting in vignetting in the image. This is most noticeable with the smaller S-
Mount/M12 6mm, 8mm and 12mm focal lenses.
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For the In-Sight 7905, the vision system image circle is larger than the S-Mount/M12 lenses used in the
autofocus module (ISAF-7000-8mm) and the S-Mount/M12 adapter kit (ISLN-7000-SMNT), resulting in
mechanical vignetting in the image when using any S-Mount/M12 lens. Therefore, S-Mount/M12 lenses are
not recommended. For more information, see Mechanical Vignetting on page 110 .
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Installation