DIY Laser levelling using webcam and laser level

[Michael Gilligan]

Hi All

My Recovering from the holliday's brain has been thinking on line generation.

Having disassembled many laser printers over the years I found in many of them the single point laser was scanned across the page by a (single point) laser beam reflected by a rotating polygon prism […]

If this concept proves doable we can generate a nice scanned plane.

An excellent idea, John

Incidentally: More years ago than I care to remember, I did some environmental tests on a scanner for reading bar-codes at the supermarket check-out [the type that generates a criss-cross of lines] : The interesting thing about this one was that they had dispensed with most of the real hardware and optics ... They were spinning a hologram !!

I don’t know if it ever went into full production.

MichaelG.
.

Edit: ... Just found supporting evidence: https://books.google.co.uk/books?id=...canner&f=false