New photodiode position

A project log for open-hardware transparent polygon scanner

laser scanner which uses transparent instead of reflective polygon

HexastormHexastorm 11/27/2018 at 23:380 Comments

At the moment, I am trying to minimize the cross scan error and improve the resolution.
My work has allowed me to build as setup, so I can improve the optics.
So far I have figured out that I can change the diode position. At the edges, the reflection is about 40 percent. The spot you see on the screen is the pulse send to the photo-diode. It reflects and transmits at the same time. I plan to use the space created, to add cylindrical lenses.