Telecentric optics, liquid-lens autofocus, MTF, distortion, C-mount flange distance, DOF, NIR/VIS coatings and 1 μm active alignment — explained for engineers and procurement teams.
Close the window at the last gate that still leaves you time to re-test, not at the launch date. For a March...
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Ask for four lens-side items, and ask for them as measured values with a stated datum rather than as nominal drawing tolerances:...
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Ask for one package before you approve any redesign: a measured transmission curve for the exact lens at your two bands, plus...
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You cannot assign blame from the symptom, and no number of remounts will produce the answer. A lens that binds in one...
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A locked lens tells you the ring cannot turn. It does not tell you that the setting survived the stroke, and it...
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A 2 mm scope lens can be pushed to a few percent of distortion across the central field, but a perfectly flat,...
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Ask the maker to quantify both, but judge the two numbers on one ledger: lock the widest aperture whose worst-case edge-localization error,...
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A machine vision lens deserves an end of life call only when a measured parameter still fails after the station has been...
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Treat the cover glass as part of the lens, because optically that is what it is. A thicker plate sitting in a...
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