I've seen other Laser Range Finders using a dot laser and a web cam, and decided I could use a line laser and multiple web cams to produce a field of laser ranges.
2 Logitech c270 web cams provide a 100 degree field of view, and a common 5mw line laser with a 120 degree lens provides a line across the entire field of view.
I've designed a mount to off set each web cam 25 degrees respectively left and right, also tilting them up 11 degrees to make their vertical field of view from horizontal to ~+22 degrees. The laser is mounted 110mm above the base and this gives the range finder a theoretical range from ~20cm to infinity.
I've written a custom image processing algorithm in java leveraging opencv via javacv