Can we make a focusing tool that will scan the beam back forth over a blade edge and look at slope?

Zapit-Optostim / zapit

General purpose optostimulation system

GNU Lesser General Public License v2.1

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Can we make a focusing tool that will scan the beam back forth over a blade edge and look at slope? #147

Open raacampbell opened 8 months ago

raacampbell commented 8 months ago

Can we focus by shooting the rapidly over a blade edge in one direction and looking at the traces on a scope? The slope should be max when we are in focus. Focus depth will depend on NA, which will be greater for the image than for the beam.