On Monday, November 27, 2017 at 11:04:25 AM UTC-5, Ed Huntress wrote:
This is for the real tech weenies. It's a free webinar, but you'd have
to sign up:

"Measuring Distance with Light in the Automotive Industry: LiDAR,
Radar, and Cameras"

Dec. 6, 11:00 AM - 12:00 PM EST

https://tinyurl.com/y95qrcvp

I just googled: laser to measure distance

Several pocket-sized devices are on the market.