I was thinking more of the mirrors. I've used galvo systems at work before, and the off the shelf ones couldn't come close to the sorts of speeds they're showin

I was thinking more of the mirrors. I've used galvo systems at work before, and the off the shelf ones couldn't come close to the sorts of speeds they're showing off. Especially not in a raster pattern. 3D LIDAR using galvos has been done before for space applications (one was used on the space shuttle, or at least a ground-based model), they used a lissajous scanning pattern which is much kinder on the motors because you can do continuous movements rather than making the mirror do a rapid turn at the end of each row. It's called TriDAR: http://adsabs.harvard.edu/abs/2006SPIE.6220E...7R http://adsabs.harvard.edu/abs/2006SPIE.6220E...7R