This tiny projector puts smartphone apps on your car's windshield

"In our interpretation, it's a transparent image, and it doesn't obstruct your view," Simpson says. "The laws that apply to us are about stickers and tinted windows, not HUDs." Navdy hopes the National Highway Traffic Safety Administration will ultimately say HUDs are a good thing since they let people view data without looking away from what's in front of them.

Curious to see how this plays out. Currently regulation is really lagging far behind technological advances.

I remember test driving an Oldsmobile in the late 80s that had a HUD. The display was outside of the driver's immediate center of vision so it didn't obstruct the roadway, but it was visible without having to look away from the road to see speed, fuel, and some other data. It used a blue vacuum fluorescent display, hot stuff at the time. IIRC though the rest of the car was an absolute piece of trash.

Edit: Ha, my memory isn't terrible: 1988 Oldsmobile Cutlass Supreme Indy Pace Car

Earlier discussion: https://news.ycombinator.com/item?id=8137815