Perhaps I'm missing the obvious, but I'm having trouble coming up with a small z-movement motorized stage that would fit under the objective of something like a SMO stereo microscope or an inspection microscope. A range of movement of 3-4mm would be ample, and the subject and its container would never weigh more than, say, 100g. A minimum step size of 1µm would probably do.
It's not hard to find something with manual micrometer movement that's compact enough; the motorization is the problem.
I would be happy to pay more than I should be happy to pay, but the Thorlabs LPS710 is almost US$5000 and provides only one millimeter of movement. No way!
Compact motorized vertical stage?
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