If your application enjoys fixed lighting conditions, objects of uniform height – and always at the same working distance from the lens – lucky you! For other imaging applications – where more variables challenge the optical solution – a different approach is needed.<\/p>\n\n\n\n
In particular, IF your application exhibits one or more of<\/strong>:<\/p>\n\n\n\n … THEN<\/strong> you may find that a fixed aperture lens with a narrow focal range would yield sub-optimal outcomes, or that you’d have to software-manage two or more cameras each with a different optical configuration.<\/p>\n\n\n\n Those challenges triggered the emergence of motorized lenses, such that one or more of the aperture (a.k.a. iris), the focus, or even varifocal breadth may be software controlled via electro-mechanical features. Early offerings in motorized lenses often used proprietary interfaces or required separate power vs. control cabling.<\/p>\n\n\n\n Thanks to USB, there are now machine vision lenses engineered by Computar, their LensConnect<\/a> series, such that applications software can continuously control lens configuration through a single USB connection.<\/p>\n\n\n\n\n