Okay, so this is clearly a fabulous idea for people who ride in congested downtown conditions a lot (though perhaps so in Vancouver with the establishment of a good downtown bike lane network):
A bike light that projects a bike lane on the pavement behind the cyclist. Yes, a tad gimmicky, but also very cool!
There appears to be a very similar project that projects a bike lane symbol ahead of the bike. I’m a little less convinced by that as the projected symbol ahead of the rider is not going to be terribly visible to drivers around you.
Maybe a combination that projects the lane and the bike symbol behind the bike?